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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ -->
<title>Database/Persist/Postgresql.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE ConstraintKinds #-}</span>
<a name="line-3"></a><span class='hs-comment'>{-# LANGUAGE DataKinds #-}</span>
<a name="line-4"></a><span class='hs-comment'>{-# LANGUAGE FlexibleContexts #-}</span>
<a name="line-5"></a><span class='hs-comment'>{-# LANGUAGE GADTs #-}</span>
<a name="line-6"></a><span class='hs-comment'>{-# LANGUAGE OverloadedStrings #-}</span>
<a name="line-7"></a><span class='hs-comment'>{-# LANGUAGE TypeFamilies #-}</span>
<a name="line-8"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-9"></a><span class='hs-comment'>{-# LANGUAGE ViewPatterns #-}</span>
<a name="line-10"></a><span class='hs-comment'>{-# LANGUAGE Rank2Types #-}</span>
<a name="line-11"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-12"></a>
<a name="line-13"></a><span class='hs-comment'>-- | A postgresql backend for persistent.</span>
<a name="line-14"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Persist</span><span class='hs-varop'>.</span><span class='hs-conid'>Postgresql</span>
<a name="line-15"></a>    <span class='hs-layout'>(</span> <span class='hs-varid'>withPostgresqlPool</span>
<a name="line-16"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>withPostgresqlConn</span>
<a name="line-17"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>createPostgresqlPool</span>
<a name="line-18"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>createPostgresqlPoolModified</span>
<a name="line-19"></a>    <span class='hs-layout'>,</span> <span class='hs-keyword'>module</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Persist</span><span class='hs-varop'>.</span><span class='hs-conid'>Sql</span>
<a name="line-20"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>ConnectionString</span>
<a name="line-21"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>PostgresConf</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-22"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>openSimpleConn</span>
<a name="line-23"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>tableName</span>
<a name="line-24"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>fieldName</span>
<a name="line-25"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>mockMigration</span>
<a name="line-26"></a>    <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-27"></a>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Persist</span><span class='hs-varop'>.</span><span class='hs-conid'>Sql</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Persist</span><span class='hs-varop'>.</span><span class='hs-conid'>Sql</span><span class='hs-varop'>.</span><span class='hs-conid'>Util</span> <span class='hs-layout'>(</span><span class='hs-varid'>dbIdColumnsEsc</span><span class='hs-layout'>)</span>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>Persist</span><span class='hs-varop'>.</span><span class='hs-conid'>Sql</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-layout'>(</span><span class='hs-varid'>mkPersistBackend</span><span class='hs-layout'>)</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Fixed</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pico</span><span class='hs-layout'>)</span>
<a name="line-32"></a>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>PostgreSQL</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PG</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>PostgreSQL</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span><span class='hs-varop'>.</span><span class='hs-conid'>TypeInfo</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PG</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>PostgreSQL</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span><span class='hs-varop'>.</span><span class='hs-conid'>TypeInfo</span><span class='hs-varop'>.</span><span class='hs-conid'>Static</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PS</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>PostgreSQL</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PG</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>PostgreSQL</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span><span class='hs-varop'>.</span><span class='hs-conid'>ToField</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PGTF</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>PostgreSQL</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span><span class='hs-varop'>.</span><span class='hs-conid'>FromField</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PGFF</span>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>PostgreSQL</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>PG</span>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>PostgreSQL</span><span class='hs-varop'>.</span><span class='hs-conid'>Simple</span><span class='hs-varop'>.</span><span class='hs-conid'>Ok</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ok</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-41"></a>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Database</span><span class='hs-varop'>.</span><span class='hs-conid'>PostgreSQL</span><span class='hs-varop'>.</span><span class='hs-conid'>LibPQ</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>LibPQ</span>
<a name="line-43"></a>
<a name="line-44"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>Resource</span>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-layout'>(</span><span class='hs-varid'>throw</span><span class='hs-layout'>)</span>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadIO</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-47"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span>
<a name="line-48"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-49"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>IORef</span>
<a name="line-50"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Map</span>
<a name="line-51"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span>
<a name="line-52"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Either</span> <span class='hs-layout'>(</span><span class='hs-varid'>partitionEithers</span><span class='hs-layout'>)</span>
<a name="line-53"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Arrow</span>
<a name="line-54"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span><span class='hs-varid'>find</span><span class='hs-layout'>,</span> <span class='hs-varid'>sort</span><span class='hs-layout'>,</span> <span class='hs-varid'>groupBy</span><span class='hs-layout'>)</span>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Function</span> <span class='hs-layout'>(</span><span class='hs-varid'>on</span><span class='hs-layout'>)</span>
<a name="line-56"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Conduit</span>
<a name="line-57"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Conduit</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>CL</span>
<a name="line-58"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Logger</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadLogger</span><span class='hs-layout'>,</span> <span class='hs-varid'>runNoLoggingT</span><span class='hs-layout'>)</span>
<a name="line-59"></a>
<a name="line-60"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>IntMap</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>I</span>
<a name="line-61"></a>
<a name="line-62"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-63"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B8</span>
<a name="line-64"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>T</span>
<a name="line-65"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Read</span> <span class='hs-layout'>(</span><span class='hs-varid'>rational</span><span class='hs-layout'>)</span>
<a name="line-66"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Encoding</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>T</span>
<a name="line-67"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>T</span>
<a name="line-68"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Blaze</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Builder</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BBB</span>
<a name="line-69"></a>
<a name="line-70"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</span>
<a name="line-71"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Aeson</span>
<a name="line-72"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Aeson</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span> <span class='hs-layout'>(</span><span class='hs-varid'>modifyFailure</span><span class='hs-layout'>)</span>
<a name="line-73"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>forM</span><span class='hs-layout'>)</span>
<a name="line-74"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>Reader</span> <span class='hs-layout'>(</span><span class='hs-varid'>runReaderT</span><span class='hs-layout'>)</span>
<a name="line-75"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>Writer</span> <span class='hs-layout'>(</span><span class='hs-varid'>runWriterT</span><span class='hs-layout'>)</span>
<a name="line-76"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Acquire</span> <span class='hs-layout'>(</span><span class='hs-conid'>Acquire</span><span class='hs-layout'>,</span> <span class='hs-varid'>mkAcquire</span><span class='hs-layout'>,</span> <span class='hs-varid'>with</span><span class='hs-layout'>)</span>
<a name="line-77"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Environment</span> <span class='hs-layout'>(</span><span class='hs-varid'>getEnvironment</span><span class='hs-layout'>)</span>
<a name="line-78"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Int</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int64</span><span class='hs-layout'>)</span>
<a name="line-79"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Monoid</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>&lt;&gt;</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-80"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Pool</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pool</span><span class='hs-layout'>)</span>
<a name="line-81"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Time</span> <span class='hs-layout'>(</span><span class='hs-varid'>utc</span><span class='hs-layout'>,</span> <span class='hs-varid'>localTimeToUTC</span><span class='hs-layout'>)</span>
<a name="line-82"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-layout'>(</span><span class='hs-conid'>Exception</span><span class='hs-layout'>,</span> <span class='hs-varid'>throwIO</span><span class='hs-layout'>)</span>
<a name="line-83"></a>
<a name="line-84"></a><a name="ConnectionString"></a><span class='hs-comment'>-- | A @libpq@ connection string.  A simple example of connection</span>
<a name="line-85"></a><a name="ConnectionString"></a><span class='hs-comment'>-- string would be @\"host=localhost port=5432 user=test</span>
<a name="line-86"></a><a name="ConnectionString"></a><span class='hs-comment'>-- dbname=test password=test\"@.  Please read libpq's</span>
<a name="line-87"></a><a name="ConnectionString"></a><span class='hs-comment'>-- documentation at</span>
<a name="line-88"></a><a name="ConnectionString"></a><span class='hs-comment'>-- &lt;<a href="http://www.postgresql.org/docs/9.1/static/libpq-connect.html">http://www.postgresql.org/docs/9.1/static/libpq-connect.html</a>&gt;</span>
<a name="line-89"></a><a name="ConnectionString"></a><span class='hs-comment'>-- for more details on how to create such strings.</span>
<a name="line-90"></a><a name="ConnectionString"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>ConnectionString</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ByteString</span>
<a name="line-91"></a>
<a name="line-92"></a><a name="PostgresServerVersionError"></a><span class='hs-comment'>-- | PostgresServerVersionError exception. This is thrown when persistent</span>
<a name="line-93"></a><a name="PostgresServerVersionError"></a><span class='hs-comment'>-- is unable to find the version of the postgreSQL server.</span>
<a name="line-94"></a><a name="PostgresServerVersionError"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PostgresServerVersionError</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PostgresServerVersionError</span> <span class='hs-conid'>String</span> <span class='hs-keyword'>deriving</span> <span class='hs-conid'>Typeable</span>
<a name="line-95"></a>
<a name="line-96"></a><a name="instance%20Show%20PostgresServerVersionError"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>PostgresServerVersionError</span> <span class='hs-keyword'>where</span>
<a name="line-97"></a>    <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>PostgresServerVersionError</span> <span class='hs-varid'>uniqueMsg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-98"></a>      <span class='hs-str'>"Unexpected PostgreSQL server version, got "</span> <span class='hs-varop'>&lt;&gt;</span> <span class='hs-varid'>uniqueMsg</span>
<a name="line-99"></a><a name="instance%20Exception%20PostgresServerVersionError"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Exception</span> <span class='hs-conid'>PostgresServerVersionError</span>
<a name="line-100"></a>
<a name="line-101"></a><a name="withPostgresqlPool"></a><span class='hs-comment'>-- | Create a PostgreSQL connection pool and run the given</span>
<a name="line-102"></a><span class='hs-comment'>-- action.  The pool is properly released after the action</span>
<a name="line-103"></a><span class='hs-comment'>-- finishes using it.  Note that you should not use the given</span>
<a name="line-104"></a><span class='hs-comment'>-- 'ConnectionPool' outside the action since it may be already</span>
<a name="line-105"></a><span class='hs-comment'>-- been released.</span>
<a name="line-106"></a><span class='hs-definition'>withPostgresqlPool</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadBaseControl</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadLogger</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadIO</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>IsSqlBackend</span> <span class='hs-varid'>backend</span><span class='hs-layout'>)</span>
<a name="line-107"></a>                   <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ConnectionString</span>
<a name="line-108"></a>                   <span class='hs-comment'>-- ^ Connection string to the database.</span>
<a name="line-109"></a>                   <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-110"></a>                   <span class='hs-comment'>-- ^ Number of connections to be kept open in</span>
<a name="line-111"></a>                   <span class='hs-comment'>-- the pool.</span>
<a name="line-112"></a>                   <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pool</span> <span class='hs-varid'>backend</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-113"></a>                   <span class='hs-comment'>-- ^ Action to be executed that uses the</span>
<a name="line-114"></a>                   <span class='hs-comment'>-- connection pool.</span>
<a name="line-115"></a>                   <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span>
<a name="line-116"></a><span class='hs-definition'>withPostgresqlPool</span> <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withSqlPool</span> <span class='hs-varop'>$</span> <span class='hs-varid'>open'</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-varid'>ci</span>
<a name="line-117"></a>
<a name="line-118"></a>
<a name="line-119"></a><a name="createPostgresqlPool"></a><span class='hs-comment'>-- | Create a PostgreSQL connection pool.  Note that it's your</span>
<a name="line-120"></a><span class='hs-comment'>-- responsibility to properly close the connection pool when</span>
<a name="line-121"></a><span class='hs-comment'>-- unneeded.  Use 'withPostgresqlPool' for an automatic resource</span>
<a name="line-122"></a><span class='hs-comment'>-- control.</span>
<a name="line-123"></a><span class='hs-definition'>createPostgresqlPool</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadIO</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadBaseControl</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadLogger</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>IsSqlBackend</span> <span class='hs-varid'>backend</span><span class='hs-layout'>)</span>
<a name="line-124"></a>                     <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ConnectionString</span>
<a name="line-125"></a>                     <span class='hs-comment'>-- ^ Connection string to the database.</span>
<a name="line-126"></a>                     <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span>
<a name="line-127"></a>                     <span class='hs-comment'>-- ^ Number of connections to be kept open</span>
<a name="line-128"></a>                     <span class='hs-comment'>-- in the pool.</span>
<a name="line-129"></a>                     <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pool</span> <span class='hs-varid'>backend</span><span class='hs-layout'>)</span>
<a name="line-130"></a><span class='hs-definition'>createPostgresqlPool</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>createPostgresqlPoolModified</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-131"></a>
<a name="line-132"></a><a name="createPostgresqlPoolModified"></a><span class='hs-comment'>-- | Same as 'createPostgresqlPool', but additionally takes a callback function</span>
<a name="line-133"></a><span class='hs-comment'>-- for some connection-specific tweaking to be performed after connection</span>
<a name="line-134"></a><span class='hs-comment'>-- creation. This could be used, for example, to change the schema. For more</span>
<a name="line-135"></a><span class='hs-comment'>-- information, see:</span>
<a name="line-136"></a><span class='hs-comment'>--</span>
<a name="line-137"></a><span class='hs-comment'>-- &lt;https://groups.google.com/d/msg/yesodweb/qUXrEN_swEo/O0pFwqwQIdcJ&gt;</span>
<a name="line-138"></a><span class='hs-comment'>--</span>
<a name="line-139"></a><span class='hs-comment'>-- Since 2.1.3</span>
<a name="line-140"></a><span class='hs-definition'>createPostgresqlPoolModified</span>
<a name="line-141"></a>    <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadIO</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadBaseControl</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadLogger</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>IsSqlBackend</span> <span class='hs-varid'>backend</span><span class='hs-layout'>)</span>
<a name="line-142"></a>    <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Connection</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- ^ action to perform after connection is created</span>
<a name="line-143"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ConnectionString</span> <span class='hs-comment'>-- ^ Connection string to the database.</span>
<a name="line-144"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Number of connections to be kept open in the pool.</span>
<a name="line-145"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pool</span> <span class='hs-varid'>backend</span><span class='hs-layout'>)</span>
<a name="line-146"></a><span class='hs-definition'>createPostgresqlPoolModified</span> <span class='hs-varid'>modConn</span> <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>createSqlPool</span> <span class='hs-varop'>$</span> <span class='hs-varid'>open'</span> <span class='hs-varid'>modConn</span> <span class='hs-varid'>ci</span>
<a name="line-147"></a>
<a name="line-148"></a><a name="withPostgresqlConn"></a><span class='hs-comment'>-- | Same as 'withPostgresqlPool', but instead of opening a pool</span>
<a name="line-149"></a><span class='hs-comment'>-- of connections, only one connection is opened.</span>
<a name="line-150"></a><span class='hs-definition'>withPostgresqlConn</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadIO</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadBaseControl</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadLogger</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>IsSqlBackend</span> <span class='hs-varid'>backend</span><span class='hs-layout'>)</span>
<a name="line-151"></a>                   <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ConnectionString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>backend</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span>
<a name="line-152"></a><span class='hs-definition'>withPostgresqlConn</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withSqlConn</span> <span class='hs-varop'>.</span> <span class='hs-varid'>open'</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-153"></a>
<a name="line-154"></a><a name="open'"></a><span class='hs-definition'>open'</span>
<a name="line-155"></a>    <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>IsSqlBackend</span> <span class='hs-varid'>backend</span><span class='hs-layout'>)</span>
<a name="line-156"></a>    <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Connection</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ConnectionString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>LogFunc</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>backend</span>
<a name="line-157"></a><span class='hs-definition'>open'</span> <span class='hs-varid'>modConn</span> <span class='hs-varid'>cstr</span> <span class='hs-varid'>logFunc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-158"></a>    <span class='hs-varid'>conn</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>connectPostgreSQL</span> <span class='hs-varid'>cstr</span>
<a name="line-159"></a>    <span class='hs-varid'>modConn</span> <span class='hs-varid'>conn</span>
<a name="line-160"></a>    <span class='hs-varid'>openSimpleConn</span> <span class='hs-varid'>logFunc</span> <span class='hs-varid'>conn</span>
<a name="line-161"></a>
<a name="line-162"></a><a name="getServerVersion"></a><span class='hs-comment'>-- | Gets the PostgreSQL server version</span>
<a name="line-163"></a><span class='hs-definition'>getServerVersion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Connection</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>Double</span><span class='hs-layout'>)</span>
<a name="line-164"></a><span class='hs-definition'>getServerVersion</span> <span class='hs-varid'>conn</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-165"></a>  <span class='hs-keyglyph'>[</span><span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Only</span> <span class='hs-varid'>version</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>query_</span> <span class='hs-varid'>conn</span> <span class='hs-str'>"show server_version"</span><span class='hs-layout'>;</span>
<a name="line-166"></a>  <span class='hs-keyword'>let</span> <span class='hs-varid'>version'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rational</span> <span class='hs-varid'>version</span>
<a name="line-167"></a>  <span class='hs-comment'>--- λ&gt; rational "9.8.3"</span>
<a name="line-168"></a>  <span class='hs-comment'>--- Right (9.8,".3")</span>
<a name="line-169"></a>  <span class='hs-comment'>--- λ&gt; rational "9.8.3.5"</span>
<a name="line-170"></a>  <span class='hs-comment'>--- Right (9.8,".3.5")</span>
<a name="line-171"></a>  <span class='hs-keyword'>case</span> <span class='hs-varid'>version'</span> <span class='hs-keyword'>of</span>
<a name="line-172"></a>    <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>a</span>
<a name="line-173"></a>    <span class='hs-conid'>Left</span> <span class='hs-varid'>err</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>throwIO</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PostgresServerVersionError</span> <span class='hs-varid'>err</span>
<a name="line-174"></a>
<a name="line-175"></a><a name="upsertFunction"></a><span class='hs-comment'>-- | Choose upsert sql generation function based on postgresql version.</span>
<a name="line-176"></a><span class='hs-comment'>-- PostgreSQL version &gt;= 9.5 supports native upsert feature,</span>
<a name="line-177"></a><span class='hs-comment'>-- so depending upon that we have to choose how the sql query is generated.</span>
<a name="line-178"></a><span class='hs-definition'>upsertFunction</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Double</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>EntityDef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span><span class='hs-layout'>)</span>
<a name="line-179"></a><span class='hs-definition'>upsertFunction</span> <span class='hs-varid'>version</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>version</span> <span class='hs-varop'>&gt;=</span> <span class='hs-num'>9.5</span><span class='hs-layout'>)</span>
<a name="line-180"></a>                         <span class='hs-keyword'>then</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>upsertSql'</span>
<a name="line-181"></a>                         <span class='hs-keyword'>else</span> <span class='hs-conid'>Nothing</span>
<a name="line-182"></a>
<a name="line-183"></a><a name="openSimpleConn"></a><span class='hs-comment'>-- | Generate a 'Connection' from a 'PG.Connection'</span>
<a name="line-184"></a><span class='hs-definition'>openSimpleConn</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>IsSqlBackend</span> <span class='hs-varid'>backend</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>LogFunc</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Connection</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>backend</span>
<a name="line-185"></a><span class='hs-definition'>openSimpleConn</span> <span class='hs-varid'>logFunc</span> <span class='hs-varid'>conn</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-186"></a>    <span class='hs-varid'>smap</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newIORef</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-187"></a>    <span class='hs-varid'>serverVersion</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getServerVersion</span> <span class='hs-varid'>conn</span>
<a name="line-188"></a>    <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>mkPersistBackend</span> <span class='hs-varop'>$</span> <span class='hs-conid'>SqlBackend</span>
<a name="line-189"></a>        <span class='hs-layout'>{</span> <span class='hs-varid'>connPrepare</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>prepare'</span> <span class='hs-varid'>conn</span>
<a name="line-190"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connStmtMap</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>smap</span>
<a name="line-191"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connInsertSql</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>insertSql'</span>
<a name="line-192"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connInsertManySql</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>insertManySql'</span>
<a name="line-193"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connUpsertSql</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybe</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>upsertFunction</span> <span class='hs-varid'>serverVersion</span>
<a name="line-194"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connClose</span>      <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>close</span> <span class='hs-varid'>conn</span>
<a name="line-195"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connMigrateSql</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>migrate'</span>
<a name="line-196"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connBegin</span>      <span class='hs-keyglyph'>=</span> <span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>begin</span>    <span class='hs-varid'>conn</span>
<a name="line-197"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connCommit</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>commit</span>   <span class='hs-varid'>conn</span>
<a name="line-198"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connRollback</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>rollback</span> <span class='hs-varid'>conn</span>
<a name="line-199"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connEscapeName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>escape</span>
<a name="line-200"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connNoLimit</span>    <span class='hs-keyglyph'>=</span> <span class='hs-str'>"LIMIT ALL"</span>
<a name="line-201"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connRDBMS</span>      <span class='hs-keyglyph'>=</span> <span class='hs-str'>"postgresql"</span>
<a name="line-202"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connLimitOffset</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decorateSQLWithLimitOffset</span> <span class='hs-str'>"LIMIT ALL"</span>
<a name="line-203"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>connLogFunc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>logFunc</span>
<a name="line-204"></a>        <span class='hs-layout'>}</span>
<a name="line-205"></a>
<a name="line-206"></a><a name="prepare'"></a><span class='hs-definition'>prepare'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Connection</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Statement</span>
<a name="line-207"></a><span class='hs-definition'>prepare'</span> <span class='hs-varid'>conn</span> <span class='hs-varid'>sql</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-208"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>query</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Query</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf8</span> <span class='hs-varid'>sql</span><span class='hs-layout'>)</span>
<a name="line-209"></a>    <span class='hs-varid'>return</span> <span class='hs-conid'>Statement</span>
<a name="line-210"></a>        <span class='hs-layout'>{</span> <span class='hs-varid'>stmtFinalize</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-211"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>stmtReset</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-212"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>stmtExecute</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>execute'</span> <span class='hs-varid'>conn</span> <span class='hs-varid'>query</span>
<a name="line-213"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>stmtQuery</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withStmt'</span> <span class='hs-varid'>conn</span> <span class='hs-varid'>query</span>
<a name="line-214"></a>        <span class='hs-layout'>}</span>
<a name="line-215"></a>
<a name="line-216"></a><a name="insertSql'"></a><span class='hs-definition'>insertSql'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>EntityDef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistValue</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>InsertSqlResult</span>
<a name="line-217"></a><span class='hs-definition'>insertSql'</span> <span class='hs-varid'>ent</span> <span class='hs-varid'>vals</span> <span class='hs-keyglyph'>=</span>
<a name="line-218"></a>  <span class='hs-keyword'>let</span> <span class='hs-varid'>sql</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-219"></a>                <span class='hs-keyglyph'>[</span> <span class='hs-str'>"INSERT INTO "</span>
<a name="line-220"></a>                <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varop'>$</span> <span class='hs-varid'>entityDB</span> <span class='hs-varid'>ent</span>
<a name="line-221"></a>                <span class='hs-layout'>,</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityFields</span> <span class='hs-varid'>ent</span><span class='hs-layout'>)</span>
<a name="line-222"></a>                    <span class='hs-keyword'>then</span> <span class='hs-str'>" DEFAULT VALUES"</span>
<a name="line-223"></a>                    <span class='hs-keyword'>else</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-224"></a>                        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"("</span>
<a name="line-225"></a>                        <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>escape</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fieldDB</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>entityFields</span> <span class='hs-varid'>ent</span>
<a name="line-226"></a>                        <span class='hs-layout'>,</span> <span class='hs-str'>") VALUES("</span>
<a name="line-227"></a>                        <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-str'>"?"</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>entityFields</span> <span class='hs-varid'>ent</span><span class='hs-layout'>)</span>
<a name="line-228"></a>                        <span class='hs-layout'>,</span> <span class='hs-str'>")"</span>
<a name="line-229"></a>                        <span class='hs-keyglyph'>]</span>
<a name="line-230"></a>                <span class='hs-keyglyph'>]</span>
<a name="line-231"></a>  <span class='hs-keyword'>in</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>entityPrimary</span> <span class='hs-varid'>ent</span> <span class='hs-keyword'>of</span>
<a name="line-232"></a>       <span class='hs-conid'>Just</span> <span class='hs-sel'>_pdef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ISRManyKeys</span> <span class='hs-varid'>sql</span> <span class='hs-varid'>vals</span>
<a name="line-233"></a>       <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ISRSingle</span> <span class='hs-layout'>(</span><span class='hs-varid'>sql</span> <span class='hs-varop'>&lt;&gt;</span> <span class='hs-str'>" RETURNING "</span> <span class='hs-varop'>&lt;&gt;</span> <span class='hs-varid'>escape</span> <span class='hs-layout'>(</span><span class='hs-varid'>fieldDB</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityId</span> <span class='hs-varid'>ent</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-234"></a>
<a name="line-235"></a>
<a name="line-236"></a><a name="upsertSql'"></a><span class='hs-definition'>upsertSql'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>EntityDef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-237"></a><span class='hs-definition'>upsertSql'</span> <span class='hs-varid'>ent</span> <span class='hs-varid'>updateVal</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-238"></a>                           <span class='hs-keyglyph'>[</span> <span class='hs-str'>"INSERT INTO "</span>
<a name="line-239"></a>                           <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityDB</span> <span class='hs-varid'>ent</span><span class='hs-layout'>)</span>
<a name="line-240"></a>                           <span class='hs-layout'>,</span> <span class='hs-str'>"("</span>
<a name="line-241"></a>                           <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>escape</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fieldDB</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>entityFields</span> <span class='hs-varid'>ent</span>
<a name="line-242"></a>                           <span class='hs-layout'>,</span> <span class='hs-str'>") VALUES ("</span>
<a name="line-243"></a>                           <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-str'>"?"</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityFields</span> <span class='hs-varid'>ent</span><span class='hs-layout'>)</span>
<a name="line-244"></a>                           <span class='hs-layout'>,</span> <span class='hs-str'>") ON CONFLICT ("</span>
<a name="line-245"></a>                           <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>concat</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>map</span> <span class='hs-varid'>escape</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>$</span> <span class='hs-varid'>uniqueFields</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityUniques</span> <span class='hs-varid'>ent</span><span class='hs-layout'>)</span>
<a name="line-246"></a>                           <span class='hs-layout'>,</span> <span class='hs-str'>") DO UPDATE SET "</span>
<a name="line-247"></a>                           <span class='hs-layout'>,</span> <span class='hs-varid'>updateVal</span>
<a name="line-248"></a>                           <span class='hs-layout'>,</span> <span class='hs-str'>" WHERE "</span>
<a name="line-249"></a>                           <span class='hs-layout'>,</span> <span class='hs-varid'>wher</span>
<a name="line-250"></a>                           <span class='hs-layout'>,</span> <span class='hs-str'>" RETURNING ??"</span>
<a name="line-251"></a>                           <span class='hs-keyglyph'>]</span>
<a name="line-252"></a>    <span class='hs-keyword'>where</span>
<a name="line-253"></a>      <span class='hs-varid'>wher</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>" AND "</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>singleCondition</span> <span class='hs-varop'>$</span> <span class='hs-varid'>entityUniques</span> <span class='hs-varid'>ent</span>
<a name="line-254"></a>
<a name="line-255"></a>      <span class='hs-varid'>singleCondition</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>UniqueDef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-256"></a>      <span class='hs-varid'>singleCondition</span> <span class='hs-varid'>udef</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>" AND "</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>singleClause</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>snd</span> <span class='hs-layout'>(</span><span class='hs-varid'>uniqueFields</span> <span class='hs-varid'>udef</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-257"></a>
<a name="line-258"></a>      <span class='hs-varid'>singleClause</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-259"></a>      <span class='hs-varid'>singleClause</span> <span class='hs-varid'>field</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>escape</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityDB</span> <span class='hs-varid'>ent</span><span class='hs-layout'>)</span> <span class='hs-varop'>&lt;&gt;</span> <span class='hs-str'>"."</span> <span class='hs-varop'>&lt;&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>escape</span> <span class='hs-varid'>field</span><span class='hs-layout'>)</span> <span class='hs-varop'>&lt;&gt;</span> <span class='hs-str'>" =?"</span>
<a name="line-260"></a>
<a name="line-261"></a><a name="insertManySql'"></a><span class='hs-comment'>-- | SQL for inserting multiple rows at once and returning their primary keys.</span>
<a name="line-262"></a><span class='hs-definition'>insertManySql'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>EntityDef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistValue</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>InsertSqlResult</span>
<a name="line-263"></a><span class='hs-definition'>insertManySql'</span> <span class='hs-varid'>ent</span> <span class='hs-varid'>valss</span> <span class='hs-keyglyph'>=</span>
<a name="line-264"></a>  <span class='hs-keyword'>let</span> <span class='hs-varid'>sql</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-265"></a>                <span class='hs-keyglyph'>[</span> <span class='hs-str'>"INSERT INTO "</span>
<a name="line-266"></a>                <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityDB</span> <span class='hs-varid'>ent</span><span class='hs-layout'>)</span>
<a name="line-267"></a>                <span class='hs-layout'>,</span> <span class='hs-str'>"("</span>
<a name="line-268"></a>                <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>escape</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fieldDB</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>entityFields</span> <span class='hs-varid'>ent</span>
<a name="line-269"></a>                <span class='hs-layout'>,</span> <span class='hs-str'>") VALUES ("</span>
<a name="line-270"></a>                <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>"),("</span> <span class='hs-varop'>$</span> <span class='hs-varid'>replicate</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>valss</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-str'>"?"</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityFields</span> <span class='hs-varid'>ent</span><span class='hs-layout'>)</span>
<a name="line-271"></a>                <span class='hs-layout'>,</span> <span class='hs-str'>") RETURNING "</span>
<a name="line-272"></a>                <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>", "</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dbIdColumnsEsc</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>ent</span>
<a name="line-273"></a>                <span class='hs-keyglyph'>]</span>
<a name="line-274"></a>  <span class='hs-keyword'>in</span> <span class='hs-conid'>ISRSingle</span> <span class='hs-varid'>sql</span>
<a name="line-275"></a>
<a name="line-276"></a><a name="execute'"></a><span class='hs-definition'>execute'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Connection</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Query</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistValue</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int64</span>
<a name="line-277"></a><span class='hs-definition'>execute'</span> <span class='hs-varid'>conn</span> <span class='hs-varid'>query</span> <span class='hs-varid'>vals</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>execute</span> <span class='hs-varid'>conn</span> <span class='hs-varid'>query</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-conid'>P</span> <span class='hs-varid'>vals</span><span class='hs-layout'>)</span>
<a name="line-278"></a>
<a name="line-279"></a><a name="withStmt'"></a><span class='hs-definition'>withStmt'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadIO</span> <span class='hs-varid'>m</span>
<a name="line-280"></a>          <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Connection</span>
<a name="line-281"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Query</span>
<a name="line-282"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistValue</span><span class='hs-keyglyph'>]</span>
<a name="line-283"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Acquire</span> <span class='hs-layout'>(</span><span class='hs-conid'>Source</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistValue</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-284"></a><span class='hs-definition'>withStmt'</span> <span class='hs-varid'>conn</span> <span class='hs-varid'>query</span> <span class='hs-varid'>vals</span> <span class='hs-keyglyph'>=</span>
<a name="line-285"></a>    <span class='hs-varid'>pull</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>mkAcquire</span> <span class='hs-varid'>openS</span> <span class='hs-varid'>closeS</span>
<a name="line-286"></a>  <span class='hs-keyword'>where</span>
<a name="line-287"></a>    <span class='hs-varid'>openS</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-288"></a>      <span class='hs-comment'>-- Construct raw query</span>
<a name="line-289"></a>      <span class='hs-varid'>rawquery</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>formatQuery</span> <span class='hs-varid'>conn</span> <span class='hs-varid'>query</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-conid'>P</span> <span class='hs-varid'>vals</span><span class='hs-layout'>)</span>
<a name="line-290"></a>
<a name="line-291"></a>      <span class='hs-comment'>-- Take raw connection</span>
<a name="line-292"></a>      <span class='hs-layout'>(</span><span class='hs-varid'>rt</span><span class='hs-layout'>,</span> <span class='hs-varid'>rr</span><span class='hs-layout'>,</span> <span class='hs-varid'>rc</span><span class='hs-layout'>,</span> <span class='hs-varid'>ids</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>withConnection</span> <span class='hs-varid'>conn</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>rawconn</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-293"></a>            <span class='hs-comment'>-- Execute query</span>
<a name="line-294"></a>            <span class='hs-varid'>mret</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-varid'>exec</span> <span class='hs-varid'>rawconn</span> <span class='hs-varid'>rawquery</span>
<a name="line-295"></a>            <span class='hs-keyword'>case</span> <span class='hs-varid'>mret</span> <span class='hs-keyword'>of</span>
<a name="line-296"></a>              <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-297"></a>                <span class='hs-varid'>merr</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-varid'>errorMessage</span> <span class='hs-varid'>rawconn</span>
<a name="line-298"></a>                <span class='hs-varid'>fail</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>merr</span> <span class='hs-keyword'>of</span>
<a name="line-299"></a>                         <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-str'>"Postgresql.withStmt': unknown error"</span>
<a name="line-300"></a>                         <span class='hs-conid'>Just</span> <span class='hs-varid'>e</span>  <span class='hs-keyglyph'>-&gt;</span> <span class='hs-str'>"Postgresql.withStmt': "</span> <span class='hs-varop'>++</span> <span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>e</span>
<a name="line-301"></a>              <span class='hs-conid'>Just</span> <span class='hs-varid'>ret</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-302"></a>                <span class='hs-comment'>-- Check result status</span>
<a name="line-303"></a>                <span class='hs-varid'>status</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-varid'>resultStatus</span> <span class='hs-varid'>ret</span>
<a name="line-304"></a>                <span class='hs-keyword'>case</span> <span class='hs-varid'>status</span> <span class='hs-keyword'>of</span>
<a name="line-305"></a>                  <span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-conid'>TuplesOk</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-306"></a>                  <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>throwResultError</span> <span class='hs-str'>"Postgresql.withStmt': bad result status "</span> <span class='hs-varid'>ret</span> <span class='hs-varid'>status</span>
<a name="line-307"></a>
<a name="line-308"></a>                <span class='hs-comment'>-- Get number and type of columns</span>
<a name="line-309"></a>                <span class='hs-varid'>cols</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-varid'>nfields</span> <span class='hs-varid'>ret</span>
<a name="line-310"></a>                <span class='hs-varid'>oids</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>forM</span> <span class='hs-keyglyph'>[</span><span class='hs-num'>0</span><span class='hs-keyglyph'>..</span><span class='hs-varid'>cols</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>col</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>(,)</span> <span class='hs-varid'>col</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-varid'>ftype</span> <span class='hs-varid'>ret</span> <span class='hs-varid'>col</span><span class='hs-layout'>)</span>
<a name="line-311"></a>                <span class='hs-comment'>-- Ready to go!</span>
<a name="line-312"></a>                <span class='hs-varid'>rowRef</span>   <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newIORef</span> <span class='hs-layout'>(</span><span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-conid'>Row</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-313"></a>                <span class='hs-varid'>rowCount</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-varid'>ntuples</span> <span class='hs-varid'>ret</span>
<a name="line-314"></a>                <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>ret</span><span class='hs-layout'>,</span> <span class='hs-varid'>rowRef</span><span class='hs-layout'>,</span> <span class='hs-varid'>rowCount</span><span class='hs-layout'>,</span> <span class='hs-varid'>oids</span><span class='hs-layout'>)</span>
<a name="line-315"></a>      <span class='hs-keyword'>let</span> <span class='hs-varid'>getters</span>
<a name="line-316"></a>            <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>col</span><span class='hs-layout'>,</span> <span class='hs-varid'>oid</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>getGetter</span> <span class='hs-varid'>conn</span> <span class='hs-varid'>oid</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Field</span> <span class='hs-varid'>rt</span> <span class='hs-varid'>col</span> <span class='hs-varid'>oid</span><span class='hs-layout'>)</span> <span class='hs-varid'>ids</span>
<a name="line-317"></a>      <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>rt</span><span class='hs-layout'>,</span> <span class='hs-varid'>rr</span><span class='hs-layout'>,</span> <span class='hs-varid'>rc</span><span class='hs-layout'>,</span> <span class='hs-varid'>getters</span><span class='hs-layout'>)</span>
<a name="line-318"></a>
<a name="line-319"></a>    <span class='hs-varid'>closeS</span> <span class='hs-layout'>(</span><span class='hs-varid'>ret</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeFreeResult</span> <span class='hs-varid'>ret</span>
<a name="line-320"></a>
<a name="line-321"></a>    <span class='hs-varid'>pull</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-322"></a>        <span class='hs-varid'>y</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-varid'>pullS</span> <span class='hs-varid'>x</span>
<a name="line-323"></a>        <span class='hs-keyword'>case</span> <span class='hs-varid'>y</span> <span class='hs-keyword'>of</span>
<a name="line-324"></a>            <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-325"></a>            <span class='hs-conid'>Just</span> <span class='hs-varid'>z</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>yield</span> <span class='hs-varid'>z</span> <span class='hs-varop'>&gt;&gt;</span> <span class='hs-varid'>pull</span> <span class='hs-varid'>x</span>
<a name="line-326"></a>
<a name="line-327"></a>    <span class='hs-varid'>pullS</span> <span class='hs-layout'>(</span><span class='hs-varid'>ret</span><span class='hs-layout'>,</span> <span class='hs-varid'>rowRef</span><span class='hs-layout'>,</span> <span class='hs-varid'>rowCount</span><span class='hs-layout'>,</span> <span class='hs-varid'>getters</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-328"></a>        <span class='hs-varid'>row</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>atomicModifyIORef</span> <span class='hs-varid'>rowRef</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>r</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>r</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>,</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-329"></a>        <span class='hs-keyword'>if</span> <span class='hs-varid'>row</span> <span class='hs-varop'>==</span> <span class='hs-varid'>rowCount</span>
<a name="line-330"></a>           <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-331"></a>           <span class='hs-keyword'>else</span> <span class='hs-varid'>fmap</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>forM</span> <span class='hs-layout'>(</span><span class='hs-varid'>zip</span> <span class='hs-varid'>getters</span> <span class='hs-keyglyph'>[</span><span class='hs-num'>0</span><span class='hs-keyglyph'>..</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>getter</span><span class='hs-layout'>,</span> <span class='hs-varid'>col</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-332"></a>                                <span class='hs-varid'>mbs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>LibPQ</span><span class='hs-varop'>.</span><span class='hs-varid'>getvalue'</span> <span class='hs-varid'>ret</span> <span class='hs-varid'>row</span> <span class='hs-varid'>col</span>
<a name="line-333"></a>                                <span class='hs-keyword'>case</span> <span class='hs-varid'>mbs</span> <span class='hs-keyword'>of</span>
<a name="line-334"></a>                                  <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-335"></a>                                    <span class='hs-comment'>-- getvalue' verified that the value is NULL.</span>
<a name="line-336"></a>                                    <span class='hs-comment'>-- However, that does not mean that there are</span>
<a name="line-337"></a>                                    <span class='hs-comment'>-- no NULL values inside the value (e.g., if</span>
<a name="line-338"></a>                                    <span class='hs-comment'>-- we're dealing with an array of optional values).</span>
<a name="line-339"></a>                                    <span class='hs-varid'>return</span> <span class='hs-conid'>PersistNull</span>
<a name="line-340"></a>                                  <span class='hs-conid'>Just</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-341"></a>                                    <span class='hs-varid'>ok</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>PGFF</span><span class='hs-varop'>.</span><span class='hs-varid'>runConversion</span> <span class='hs-layout'>(</span><span class='hs-varid'>getter</span> <span class='hs-varid'>mbs</span><span class='hs-layout'>)</span> <span class='hs-varid'>conn</span>
<a name="line-342"></a>                                    <span class='hs-varid'>bs</span> <span class='hs-varop'>`seq`</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>ok</span> <span class='hs-keyword'>of</span>
<a name="line-343"></a>                                                        <span class='hs-conid'>Errors</span> <span class='hs-layout'>(</span><span class='hs-varid'>exc</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>throw</span> <span class='hs-varid'>exc</span>
<a name="line-344"></a>                                                        <span class='hs-conid'>Errors</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>error</span> <span class='hs-str'>"Got an Errors, but no exceptions"</span>
<a name="line-345"></a>                                                        <span class='hs-conid'>Ok</span> <span class='hs-varid'>v</span>  <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varid'>v</span>
<a name="line-346"></a>
<a name="line-347"></a><a name="P"></a><span class='hs-comment'>-- | Avoid orphan instances.</span>
<a name="line-348"></a><a name="P"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>P</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>P</span> <span class='hs-conid'>PersistValue</span>
<a name="line-349"></a>
<a name="line-350"></a>
<a name="line-351"></a><a name="instance%20PGTF.ToField%20P"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-conid'>ToField</span> <span class='hs-conid'>P</span> <span class='hs-keyword'>where</span>
<a name="line-352"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistText</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-varid'>t</span>
<a name="line-353"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistByteString</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Binary</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span>
<a name="line-354"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistInt64</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>       <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-varid'>i</span>
<a name="line-355"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistDouble</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>      <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-varid'>d</span>
<a name="line-356"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistRational</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>    <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-conid'>Plain</span> <span class='hs-varop'>$</span>
<a name="line-357"></a>                                         <span class='hs-conid'>BBB</span><span class='hs-varop'>.</span><span class='hs-varid'>fromString</span> <span class='hs-varop'>$</span>
<a name="line-358"></a>                                         <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromRational</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pico</span><span class='hs-layout'>)</span> <span class='hs-comment'>--  FIXME: Too Ambigous, can not select precision without information about field</span>
<a name="line-359"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistBool</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-varid'>b</span>
<a name="line-360"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistDay</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>         <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-varid'>d</span>
<a name="line-361"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistTimeOfDay</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-varid'>t</span>
<a name="line-362"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistUTCTime</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>     <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-varid'>t</span>
<a name="line-363"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-conid'>PersistNull</span><span class='hs-layout'>)</span>            <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Null</span>
<a name="line-364"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistList</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-varop'>$</span> <span class='hs-varid'>listToJSON</span> <span class='hs-varid'>l</span>
<a name="line-365"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistMap</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>         <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mapToJSON</span> <span class='hs-varid'>m</span>
<a name="line-366"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistDbSpecific</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>Unknown</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-367"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>P</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistObjectId</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>    <span class='hs-keyglyph'>=</span>
<a name="line-368"></a>        <span class='hs-varid'>error</span> <span class='hs-str'>"Refusing to serialize a PersistObjectId to a PostgreSQL value"</span>
<a name="line-369"></a>
<a name="line-370"></a><a name="Unknown"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>Unknown</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Unknown</span> <span class='hs-layout'>{</span> <span class='hs-varid'>unUnknown</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-layout'>}</span>
<a name="line-371"></a>  <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>,</span> <span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-372"></a>
<a name="line-373"></a><a name="instance%20PGFF.FromField%20Unknown"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PGFF</span><span class='hs-varop'>.</span><span class='hs-conid'>FromField</span> <span class='hs-conid'>Unknown</span> <span class='hs-keyword'>where</span>
<a name="line-374"></a>    <span class='hs-varid'>fromField</span> <span class='hs-varid'>f</span> <span class='hs-varid'>mdata</span> <span class='hs-keyglyph'>=</span>
<a name="line-375"></a>      <span class='hs-keyword'>case</span> <span class='hs-varid'>mdata</span> <span class='hs-keyword'>of</span>
<a name="line-376"></a>        <span class='hs-conid'>Nothing</span>  <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>PGFF</span><span class='hs-varop'>.</span><span class='hs-varid'>returnError</span> <span class='hs-conid'>PGFF</span><span class='hs-varop'>.</span><span class='hs-conid'>UnexpectedNull</span> <span class='hs-varid'>f</span> <span class='hs-str'>"Database.Persist.Postgresql/PGFF.FromField Unknown"</span>
<a name="line-377"></a>        <span class='hs-conid'>Just</span> <span class='hs-varid'>dat</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Unknown</span> <span class='hs-varid'>dat</span><span class='hs-layout'>)</span>
<a name="line-378"></a>
<a name="line-379"></a><a name="instance%20PGTF.ToField%20Unknown"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-conid'>ToField</span> <span class='hs-conid'>Unknown</span> <span class='hs-keyword'>where</span>
<a name="line-380"></a>    <span class='hs-varid'>toField</span> <span class='hs-layout'>(</span><span class='hs-conid'>Unknown</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGTF</span><span class='hs-varop'>.</span><span class='hs-conid'>Escape</span> <span class='hs-varid'>a</span>
<a name="line-381"></a>
<a name="line-382"></a><a name="Getter"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Getter</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PGFF</span><span class='hs-varop'>.</span><span class='hs-conid'>FieldParser</span> <span class='hs-varid'>a</span>
<a name="line-383"></a>
<a name="line-384"></a><a name="convertPV"></a><span class='hs-definition'>convertPV</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PGFF</span><span class='hs-varop'>.</span><span class='hs-conid'>FromField</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Getter</span> <span class='hs-varid'>b</span>
<a name="line-385"></a><span class='hs-definition'>convertPV</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>f</span> <span class='hs-varop'>.</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-conid'>PGFF</span><span class='hs-varop'>.</span><span class='hs-varid'>fromField</span>
<a name="line-386"></a>
<a name="line-387"></a><a name="builtinGetters"></a><span class='hs-definition'>builtinGetters</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-conid'>IntMap</span> <span class='hs-layout'>(</span><span class='hs-conid'>Getter</span> <span class='hs-conid'>PersistValue</span><span class='hs-layout'>)</span>
<a name="line-388"></a><span class='hs-definition'>builtinGetters</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span>
<a name="line-389"></a>    <span class='hs-keyglyph'>[</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>bool</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistBool</span><span class='hs-layout'>)</span>
<a name="line-390"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>bytea</span><span class='hs-layout'>,</span>       <span class='hs-varid'>convertPV</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistByteString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unBinary</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-391"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>char</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-392"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-393"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>int8</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-394"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>int2</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-395"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>int4</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-396"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-397"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>xml</span><span class='hs-layout'>,</span>         <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-398"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>float4</span><span class='hs-layout'>,</span>      <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistDouble</span><span class='hs-layout'>)</span>
<a name="line-399"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>float8</span><span class='hs-layout'>,</span>      <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistDouble</span><span class='hs-layout'>)</span>
<a name="line-400"></a><span class='hs-cpp'>#if !MIN_VERSION_postgresql_simple(0,5,0)</span>
<a name="line-401"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>abstime</span><span class='hs-layout'>,</span>     <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistUTCTime</span><span class='hs-layout'>)</span>
<a name="line-402"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>reltime</span><span class='hs-layout'>,</span>     <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistUTCTime</span><span class='hs-layout'>)</span>
<a name="line-403"></a><span class='hs-cpp'>#endif</span>
<a name="line-404"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>money</span><span class='hs-layout'>,</span>       <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistRational</span><span class='hs-layout'>)</span>
<a name="line-405"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>bpchar</span><span class='hs-layout'>,</span>      <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-406"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>varchar</span><span class='hs-layout'>,</span>     <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-407"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>date</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistDay</span><span class='hs-layout'>)</span>
<a name="line-408"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>time</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistTimeOfDay</span><span class='hs-layout'>)</span>
<a name="line-409"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>timestamp</span><span class='hs-layout'>,</span>   <span class='hs-varid'>convertPV</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistUTCTime</span><span class='hs-varop'>.</span> <span class='hs-varid'>localTimeToUTC</span> <span class='hs-varid'>utc</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-410"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>timestamptz</span><span class='hs-layout'>,</span> <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistUTCTime</span><span class='hs-layout'>)</span>
<a name="line-411"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>bit</span><span class='hs-layout'>,</span>         <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-412"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>varbit</span><span class='hs-layout'>,</span>      <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-413"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>numeric</span><span class='hs-layout'>,</span>     <span class='hs-varid'>convertPV</span> <span class='hs-conid'>PersistRational</span><span class='hs-layout'>)</span>
<a name="line-414"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>void</span><span class='hs-layout'>,</span>        <span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>PersistNull</span><span class='hs-layout'>)</span>
<a name="line-415"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>json</span><span class='hs-layout'>,</span>        <span class='hs-varid'>convertPV</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistByteString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unUnknown</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-416"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>jsonb</span><span class='hs-layout'>,</span>       <span class='hs-varid'>convertPV</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistByteString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unUnknown</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-417"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varid'>k</span> <span class='hs-conid'>PS</span><span class='hs-varop'>.</span><span class='hs-varid'>unknown</span><span class='hs-layout'>,</span>     <span class='hs-varid'>convertPV</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistByteString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unUnknown</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-418"></a>
<a name="line-419"></a>    <span class='hs-comment'>-- Array types: same order as above.</span>
<a name="line-420"></a>    <span class='hs-comment'>-- The OIDs were taken from pg_type.</span>
<a name="line-421"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1000</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistBool</span><span class='hs-layout'>)</span>
<a name="line-422"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1001</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistByteString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unBinary</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-423"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1002</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-424"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1003</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-425"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1016</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-426"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1005</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-427"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1007</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-428"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1009</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-429"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>143</span><span class='hs-layout'>,</span>              <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-430"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1021</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistDouble</span><span class='hs-layout'>)</span>
<a name="line-431"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1022</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistDouble</span><span class='hs-layout'>)</span>
<a name="line-432"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1023</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistUTCTime</span><span class='hs-layout'>)</span>
<a name="line-433"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1024</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistUTCTime</span><span class='hs-layout'>)</span>
<a name="line-434"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>791</span><span class='hs-layout'>,</span>              <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistRational</span><span class='hs-layout'>)</span>
<a name="line-435"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1014</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-436"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1015</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistText</span><span class='hs-layout'>)</span>
<a name="line-437"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1182</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistDay</span><span class='hs-layout'>)</span>
<a name="line-438"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1183</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistTimeOfDay</span><span class='hs-layout'>)</span>
<a name="line-439"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1115</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistUTCTime</span><span class='hs-layout'>)</span>
<a name="line-440"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1185</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistUTCTime</span><span class='hs-layout'>)</span>
<a name="line-441"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1561</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-442"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1563</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistInt64</span><span class='hs-layout'>)</span>
<a name="line-443"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>1231</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-conid'>PersistRational</span><span class='hs-layout'>)</span>
<a name="line-444"></a>    <span class='hs-comment'>-- no array(void) type</span>
<a name="line-445"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>2951</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistDbSpecific</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unUnknown</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-446"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>199</span><span class='hs-layout'>,</span>              <span class='hs-varid'>listOf</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistByteString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unUnknown</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-447"></a>    <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-num'>3807</span><span class='hs-layout'>,</span>             <span class='hs-varid'>listOf</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistByteString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unUnknown</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-448"></a>    <span class='hs-comment'>-- no array(unknown) either</span>
<a name="line-449"></a>    <span class='hs-keyglyph'>]</span>
<a name="line-450"></a>    <span class='hs-keyword'>where</span>
<a name="line-451"></a>        <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>PGFF</span><span class='hs-varop'>.</span><span class='hs-varid'>typoid</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>oid2int</span> <span class='hs-varid'>i</span>
<a name="line-452"></a>        <span class='hs-comment'>-- A @listOf f@ will use a @PGArray (Maybe T)@ to convert</span>
<a name="line-453"></a>        <span class='hs-comment'>-- the values to Haskell-land.  The @Maybe@ is important</span>
<a name="line-454"></a>        <span class='hs-comment'>-- because the usual way of checking NULLs</span>
<a name="line-455"></a>        <span class='hs-comment'>-- (c.f. withStmt') won't check for NULL inside</span>
<a name="line-456"></a>        <span class='hs-comment'>-- arrays---or any other compound structure for that matter.</span>
<a name="line-457"></a>        <span class='hs-varid'>listOf</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>convertPV</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistList</span> <span class='hs-varop'>.</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>nullable</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>fromPGArray</span><span class='hs-layout'>)</span>
<a name="line-458"></a>          <span class='hs-keyword'>where</span> <span class='hs-varid'>nullable</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybe</span> <span class='hs-conid'>PersistNull</span>
<a name="line-459"></a>
<a name="line-460"></a><a name="getGetter"></a><span class='hs-definition'>getGetter</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Connection</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Oid</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Getter</span> <span class='hs-conid'>PersistValue</span>
<a name="line-461"></a><span class='hs-definition'>getGetter</span> <span class='hs-sel'>_conn</span> <span class='hs-varid'>oid</span>
<a name="line-462"></a>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-varid'>defaultGetter</span> <span class='hs-varop'>$</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span> <span class='hs-layout'>(</span><span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>oid2int</span> <span class='hs-varid'>oid</span><span class='hs-layout'>)</span> <span class='hs-varid'>builtinGetters</span>
<a name="line-463"></a>  <span class='hs-keyword'>where</span> <span class='hs-varid'>defaultGetter</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>convertPV</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistDbSpecific</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unUnknown</span><span class='hs-layout'>)</span>
<a name="line-464"></a>
<a name="line-465"></a><a name="unBinary"></a><span class='hs-definition'>unBinary</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Binary</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>a</span>
<a name="line-466"></a><span class='hs-definition'>unBinary</span> <span class='hs-layout'>(</span><span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>Binary</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-467"></a>
<a name="line-468"></a><a name="doesTableExist"></a><span class='hs-definition'>doesTableExist</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Statement</span><span class='hs-layout'>)</span>
<a name="line-469"></a>               <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DBName</span> <span class='hs-comment'>-- ^ table name</span>
<a name="line-470"></a>               <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Bool</span>
<a name="line-471"></a><span class='hs-definition'>doesTableExist</span> <span class='hs-varid'>getter</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-472"></a>    <span class='hs-varid'>stmt</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getter</span> <span class='hs-varid'>sql</span>
<a name="line-473"></a>    <span class='hs-varid'>with</span> <span class='hs-layout'>(</span><span class='hs-varid'>stmtQuery</span> <span class='hs-varid'>stmt</span> <span class='hs-varid'>vals</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varop'>$$</span> <span class='hs-varid'>start</span><span class='hs-layout'>)</span>
<a name="line-474"></a>  <span class='hs-keyword'>where</span>
<a name="line-475"></a>    <span class='hs-varid'>sql</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"SELECT COUNT(*) FROM pg_catalog.pg_tables WHERE schemaname != 'pg_catalog'"</span>
<a name="line-476"></a>          <span class='hs-varop'>&lt;&gt;</span> <span class='hs-str'>" AND schemaname != 'information_schema' AND tablename=?"</span>
<a name="line-477"></a>    <span class='hs-varid'>vals</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistText</span> <span class='hs-varid'>name</span><span class='hs-keyglyph'>]</span>
<a name="line-478"></a>
<a name="line-479"></a>    <span class='hs-varid'>start</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>error</span> <span class='hs-str'>"No results when checking doesTableExist"</span><span class='hs-layout'>)</span> <span class='hs-varid'>start'</span>
<a name="line-480"></a>    <span class='hs-varid'>start'</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistInt64</span> <span class='hs-num'>0</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>finish</span> <span class='hs-conid'>False</span>
<a name="line-481"></a>    <span class='hs-varid'>start'</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistInt64</span> <span class='hs-num'>1</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>finish</span> <span class='hs-conid'>True</span>
<a name="line-482"></a>    <span class='hs-varid'>start'</span> <span class='hs-varid'>res</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-varop'>$</span> <span class='hs-str'>"doesTableExist returned unexpected result: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>res</span>
<a name="line-483"></a>    <span class='hs-varid'>finish</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>await</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>error</span> <span class='hs-str'>"Too many rows returned in doesTableExist"</span><span class='hs-layout'>)</span>
<a name="line-484"></a>
<a name="line-485"></a><a name="migrate'"></a><span class='hs-definition'>migrate'</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>EntityDef</span><span class='hs-keyglyph'>]</span>
<a name="line-486"></a>         <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Statement</span><span class='hs-layout'>)</span>
<a name="line-487"></a>         <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EntityDef</span>
<a name="line-488"></a>         <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Either</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Text</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Bool</span><span class='hs-layout'>,</span> <span class='hs-conid'>Text</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-489"></a><span class='hs-definition'>migrate'</span> <span class='hs-varid'>allDefs</span> <span class='hs-varid'>getter</span> <span class='hs-varid'>entity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>showAlterDb</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-490"></a>    <span class='hs-varid'>old</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getColumns</span> <span class='hs-varid'>getter</span> <span class='hs-varid'>entity</span>
<a name="line-491"></a>    <span class='hs-keyword'>case</span> <span class='hs-varid'>partitionEithers</span> <span class='hs-varid'>old</span> <span class='hs-keyword'>of</span>
<a name="line-492"></a>        <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-varid'>old''</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-493"></a>            <span class='hs-varid'>exists</span> <span class='hs-keyglyph'>&lt;-</span>
<a name="line-494"></a>                <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>old</span>
<a name="line-495"></a>                    <span class='hs-keyword'>then</span> <span class='hs-varid'>doesTableExist</span> <span class='hs-varid'>getter</span> <span class='hs-varid'>name</span>
<a name="line-496"></a>                    <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-conid'>True</span>
<a name="line-497"></a>            <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-varid'>migrationText</span> <span class='hs-varid'>exists</span> <span class='hs-varid'>old''</span>
<a name="line-498"></a>        <span class='hs-layout'>(</span><span class='hs-varid'>errs</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Left</span> <span class='hs-varid'>errs</span>
<a name="line-499"></a>  <span class='hs-keyword'>where</span>
<a name="line-500"></a>    <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>entityDB</span> <span class='hs-varid'>entity</span>
<a name="line-501"></a>    <span class='hs-varid'>migrationText</span> <span class='hs-varid'>exists</span> <span class='hs-varid'>old''</span> <span class='hs-keyglyph'>=</span>
<a name="line-502"></a>        <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-varid'>exists</span>
<a name="line-503"></a>            <span class='hs-keyword'>then</span> <span class='hs-varid'>createText</span> <span class='hs-varid'>newcols</span> <span class='hs-varid'>fdefs</span> <span class='hs-varid'>udspair</span>
<a name="line-504"></a>            <span class='hs-keyword'>else</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>acs</span><span class='hs-layout'>,</span> <span class='hs-varid'>ats</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getAlters</span> <span class='hs-varid'>allDefs</span> <span class='hs-varid'>entity</span> <span class='hs-layout'>(</span><span class='hs-varid'>newcols</span><span class='hs-layout'>,</span> <span class='hs-varid'>udspair</span><span class='hs-layout'>)</span> <span class='hs-varid'>old'</span>
<a name="line-505"></a>                     <span class='hs-varid'>acs'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>AlterColumn</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-varid'>acs</span>
<a name="line-506"></a>                     <span class='hs-varid'>ats'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>AlterTable</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-varid'>ats</span>
<a name="line-507"></a>                 <span class='hs-keyword'>in</span>  <span class='hs-varid'>acs'</span> <span class='hs-varop'>++</span> <span class='hs-varid'>ats'</span>
<a name="line-508"></a>       <span class='hs-keyword'>where</span>
<a name="line-509"></a>         <span class='hs-varid'>old'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>partitionEithers</span> <span class='hs-varid'>old''</span>
<a name="line-510"></a>         <span class='hs-layout'>(</span><span class='hs-varid'>newcols'</span><span class='hs-layout'>,</span> <span class='hs-varid'>udefs</span><span class='hs-layout'>,</span> <span class='hs-varid'>fdefs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkColumns</span> <span class='hs-varid'>allDefs</span> <span class='hs-varid'>entity</span>
<a name="line-511"></a>         <span class='hs-varid'>newcols</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>safeToRemove</span> <span class='hs-varid'>entity</span> <span class='hs-varop'>.</span> <span class='hs-varid'>cName</span><span class='hs-layout'>)</span> <span class='hs-varid'>newcols'</span>
<a name="line-512"></a>         <span class='hs-varid'>udspair</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>udToPair</span> <span class='hs-varid'>udefs</span>
<a name="line-513"></a>            <span class='hs-comment'>-- Check for table existence if there are no columns, workaround</span>
<a name="line-514"></a>            <span class='hs-comment'>-- for https://github.com/yesodweb/persistent/issues/152</span>
<a name="line-515"></a>
<a name="line-516"></a>    <span class='hs-varid'>createText</span> <span class='hs-varid'>newcols</span> <span class='hs-varid'>fdefs</span> <span class='hs-varid'>udspair</span> <span class='hs-keyglyph'>=</span>
<a name="line-517"></a>        <span class='hs-layout'>(</span><span class='hs-varid'>addTable</span> <span class='hs-varid'>newcols</span> <span class='hs-varid'>entity</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>uniques</span> <span class='hs-varop'>++</span> <span class='hs-varid'>references</span> <span class='hs-varop'>++</span> <span class='hs-varid'>foreignsAlt</span>
<a name="line-518"></a>      <span class='hs-keyword'>where</span>
<a name="line-519"></a>        <span class='hs-varid'>uniques</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>concatMap</span> <span class='hs-varid'>udspair</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>uname</span><span class='hs-layout'>,</span> <span class='hs-varid'>ucols</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-520"></a>                <span class='hs-keyglyph'>[</span><span class='hs-conid'>AlterTable</span> <span class='hs-varid'>name</span> <span class='hs-varop'>$</span> <span class='hs-conid'>AddUniqueConstraint</span> <span class='hs-varid'>uname</span> <span class='hs-varid'>ucols</span><span class='hs-keyglyph'>]</span>
<a name="line-521"></a>        <span class='hs-varid'>references</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapMaybe</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Column</span> <span class='hs-layout'>{</span> <span class='hs-varid'>cName</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>cname</span><span class='hs-layout'>,</span> <span class='hs-varid'>cReference</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>refTblName</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-522"></a>            <span class='hs-varid'>getAddReference</span> <span class='hs-varid'>allDefs</span> <span class='hs-varid'>name</span> <span class='hs-varid'>refTblName</span> <span class='hs-varid'>cname</span> <span class='hs-layout'>(</span><span class='hs-varid'>cReference</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-523"></a>                   <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>isJust</span> <span class='hs-varop'>.</span> <span class='hs-varid'>cReference</span><span class='hs-layout'>)</span> <span class='hs-varid'>newcols</span>
<a name="line-524"></a>        <span class='hs-varid'>foreignsAlt</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>map</span> <span class='hs-varid'>fdefs</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>fdef</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-525"></a>            <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>childfields</span><span class='hs-layout'>,</span> <span class='hs-varid'>parentfields</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unzip</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span><span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>foreignFields</span> <span class='hs-varid'>fdef</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-526"></a>            <span class='hs-keyword'>in</span> <span class='hs-conid'>AlterColumn</span> <span class='hs-varid'>name</span> <span class='hs-layout'>(</span><span class='hs-varid'>foreignRefTableDBName</span> <span class='hs-varid'>fdef</span><span class='hs-layout'>,</span> <span class='hs-conid'>AddReference</span> <span class='hs-layout'>(</span><span class='hs-varid'>foreignConstraintNameDBName</span> <span class='hs-varid'>fdef</span><span class='hs-layout'>)</span> <span class='hs-varid'>childfields</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>parentfields</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-527"></a>
<a name="line-528"></a><a name="addTable"></a><span class='hs-definition'>addTable</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Column</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EntityDef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>AlterDB</span>
<a name="line-529"></a><span class='hs-definition'>addTable</span> <span class='hs-varid'>cols</span> <span class='hs-varid'>entity</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AddTable</span> <span class='hs-varop'>$</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-530"></a>                       <span class='hs-comment'>-- Lower case e: see Database.Persist.Sql.Migration</span>
<a name="line-531"></a>                       <span class='hs-keyglyph'>[</span> <span class='hs-str'>"CREATe TABLE "</span> <span class='hs-comment'>-- DO NOT FIX THE CAPITALIZATION!</span>
<a name="line-532"></a>                       <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>name</span>
<a name="line-533"></a>                       <span class='hs-layout'>,</span> <span class='hs-str'>"("</span>
<a name="line-534"></a>                       <span class='hs-layout'>,</span> <span class='hs-varid'>idtxt</span>
<a name="line-535"></a>                       <span class='hs-layout'>,</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>cols</span> <span class='hs-keyword'>then</span> <span class='hs-str'>""</span> <span class='hs-keyword'>else</span> <span class='hs-str'>","</span>
<a name="line-536"></a>                       <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>showColumn</span> <span class='hs-varid'>cols</span>
<a name="line-537"></a>                       <span class='hs-layout'>,</span> <span class='hs-str'>")"</span>
<a name="line-538"></a>                       <span class='hs-keyglyph'>]</span>
<a name="line-539"></a>    <span class='hs-keyword'>where</span>
<a name="line-540"></a>      <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>entityDB</span> <span class='hs-varid'>entity</span>
<a name="line-541"></a>      <span class='hs-varid'>idtxt</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>entityPrimary</span> <span class='hs-varid'>entity</span> <span class='hs-keyword'>of</span>
<a name="line-542"></a>                <span class='hs-conid'>Just</span> <span class='hs-varid'>pdef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>" PRIMARY KEY ("</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>escape</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fieldDB</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>compositeFields</span> <span class='hs-varid'>pdef</span><span class='hs-layout'>,</span> <span class='hs-str'>")"</span><span class='hs-keyglyph'>]</span>
<a name="line-543"></a>                <span class='hs-conid'>Nothing</span>   <span class='hs-keyglyph'>-&gt;</span>
<a name="line-544"></a>                    <span class='hs-keyword'>let</span> <span class='hs-varid'>defText</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>defaultAttribute</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fieldAttrs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>entityId</span> <span class='hs-varid'>entity</span>
<a name="line-545"></a>                        <span class='hs-varid'>sType</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fieldSqlType</span> <span class='hs-varop'>$</span> <span class='hs-varid'>entityId</span> <span class='hs-varid'>entity</span>
<a name="line-546"></a>                    <span class='hs-keyword'>in</span>  <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-547"></a>                            <span class='hs-keyglyph'>[</span> <span class='hs-varid'>escape</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fieldDB</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityId</span> <span class='hs-varid'>entity</span><span class='hs-layout'>)</span>
<a name="line-548"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>maySerial</span> <span class='hs-varid'>sType</span> <span class='hs-varid'>defText</span>
<a name="line-549"></a>                            <span class='hs-layout'>,</span> <span class='hs-str'>" PRIMARY KEY UNIQUE"</span>
<a name="line-550"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>mayDefault</span> <span class='hs-varid'>defText</span>
<a name="line-551"></a>                            <span class='hs-keyglyph'>]</span>
<a name="line-552"></a>
<a name="line-553"></a><a name="maySerial"></a><span class='hs-definition'>maySerial</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SqlType</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-554"></a><span class='hs-definition'>maySerial</span> <span class='hs-conid'>SqlInt64</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>" SERIAL8 "</span>
<a name="line-555"></a><span class='hs-definition'>maySerial</span> <span class='hs-varid'>sType</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>" "</span> <span class='hs-varop'>&lt;&gt;</span> <span class='hs-varid'>showSqlType</span> <span class='hs-varid'>sType</span>
<a name="line-556"></a>
<a name="line-557"></a><a name="mayDefault"></a><span class='hs-definition'>mayDefault</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-558"></a><span class='hs-definition'>mayDefault</span> <span class='hs-varid'>def</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>def</span> <span class='hs-keyword'>of</span>
<a name="line-559"></a>    <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-str'>""</span>
<a name="line-560"></a>    <span class='hs-conid'>Just</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-str'>" DEFAULT "</span> <span class='hs-varop'>&lt;&gt;</span> <span class='hs-varid'>d</span>
<a name="line-561"></a>
<a name="line-562"></a><a name="SafeToRemove"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>SafeToRemove</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Bool</span>
<a name="line-563"></a>
<a name="line-564"></a><a name="AlterColumn"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>AlterColumn</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Type</span> <span class='hs-conid'>SqlType</span> <span class='hs-conid'>Text</span>
<a name="line-565"></a>                 <span class='hs-keyglyph'>|</span> <span class='hs-conid'>IsNull</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NotNull</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Add'</span> <span class='hs-conid'>Column</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Drop</span> <span class='hs-conid'>SafeToRemove</span>
<a name="line-566"></a>                 <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Default</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NoDefault</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Update'</span> <span class='hs-conid'>Text</span>
<a name="line-567"></a>                 <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AddReference</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DBName</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Text</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DropReference</span> <span class='hs-conid'>DBName</span>
<a name="line-568"></a><a name="AlterColumn'"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>AlterColumn'</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span><span class='hs-layout'>,</span> <span class='hs-conid'>AlterColumn</span><span class='hs-layout'>)</span>
<a name="line-569"></a>
<a name="line-570"></a><a name="AlterTable"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>AlterTable</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AddUniqueConstraint</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DBName</span><span class='hs-keyglyph'>]</span>
<a name="line-571"></a>                <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DropConstraint</span> <span class='hs-conid'>DBName</span>
<a name="line-572"></a>
<a name="line-573"></a><a name="AlterDB"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>AlterDB</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>AddTable</span> <span class='hs-conid'>Text</span>
<a name="line-574"></a>             <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AlterColumn</span> <span class='hs-conid'>DBName</span> <span class='hs-conid'>AlterColumn'</span>
<a name="line-575"></a>             <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AlterTable</span> <span class='hs-conid'>DBName</span> <span class='hs-conid'>AlterTable</span>
<a name="line-576"></a>
<a name="line-577"></a><a name="getColumns"></a><span class='hs-comment'>-- | Returns all of the columns in the given table currently in the database.</span>
<a name="line-578"></a><span class='hs-definition'>getColumns</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Statement</span><span class='hs-layout'>)</span>
<a name="line-579"></a>           <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EntityDef</span>
<a name="line-580"></a>           <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Either</span> <span class='hs-conid'>Text</span> <span class='hs-layout'>(</span><span class='hs-conid'>Either</span> <span class='hs-conid'>Column</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DBName</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-581"></a><span class='hs-definition'>getColumns</span> <span class='hs-varid'>getter</span> <span class='hs-varid'>def</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-582"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>sqlv</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"SELECT "</span>
<a name="line-583"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"column_name "</span>
<a name="line-584"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>",is_nullable "</span>
<a name="line-585"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>",udt_name "</span>
<a name="line-586"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>",column_default "</span>
<a name="line-587"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>",numeric_precision "</span>
<a name="line-588"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>",numeric_scale "</span>
<a name="line-589"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"FROM information_schema.columns "</span>
<a name="line-590"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"WHERE table_catalog=current_database() "</span>
<a name="line-591"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND table_schema=current_schema() "</span>
<a name="line-592"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND table_name=? "</span>
<a name="line-593"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND column_name &lt;&gt; ?"</span><span class='hs-keyglyph'>]</span>
<a name="line-594"></a>
<a name="line-595"></a>    <span class='hs-varid'>stmt</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getter</span> <span class='hs-varid'>sqlv</span>
<a name="line-596"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>vals</span> <span class='hs-keyglyph'>=</span>
<a name="line-597"></a>            <span class='hs-keyglyph'>[</span> <span class='hs-conid'>PersistText</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unDBName</span> <span class='hs-varop'>$</span> <span class='hs-varid'>entityDB</span> <span class='hs-varid'>def</span>
<a name="line-598"></a>            <span class='hs-layout'>,</span> <span class='hs-conid'>PersistText</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unDBName</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fieldDB</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityId</span> <span class='hs-varid'>def</span><span class='hs-layout'>)</span>
<a name="line-599"></a>            <span class='hs-keyglyph'>]</span>
<a name="line-600"></a>    <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>with</span> <span class='hs-layout'>(</span><span class='hs-varid'>stmtQuery</span> <span class='hs-varid'>stmt</span> <span class='hs-varid'>vals</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varop'>$$</span> <span class='hs-varid'>helper</span><span class='hs-layout'>)</span>
<a name="line-601"></a>    <span class='hs-keyword'>let</span> <span class='hs-varid'>sqlc</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"SELECT "</span>
<a name="line-602"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"c.constraint_name, "</span>
<a name="line-603"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"c.column_name "</span>
<a name="line-604"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"FROM information_schema.key_column_usage c, "</span>
<a name="line-605"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"information_schema.table_constraints k "</span>
<a name="line-606"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"WHERE c.table_catalog=current_database() "</span>
<a name="line-607"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND c.table_catalog=k.table_catalog "</span>
<a name="line-608"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND c.table_schema=current_schema() "</span>
<a name="line-609"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND c.table_schema=k.table_schema "</span>
<a name="line-610"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND c.table_name=? "</span>
<a name="line-611"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND c.table_name=k.table_name "</span>
<a name="line-612"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND c.column_name &lt;&gt; ? "</span>
<a name="line-613"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND c.constraint_name=k.constraint_name "</span>
<a name="line-614"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"AND NOT k.constraint_type IN ('PRIMARY KEY', 'FOREIGN KEY') "</span>
<a name="line-615"></a>                          <span class='hs-layout'>,</span><span class='hs-str'>"ORDER BY c.constraint_name, c.column_name"</span><span class='hs-keyglyph'>]</span>
<a name="line-616"></a>
<a name="line-617"></a>    <span class='hs-varid'>stmt'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getter</span> <span class='hs-varid'>sqlc</span>
<a name="line-618"></a>
<a name="line-619"></a>    <span class='hs-varid'>us</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>with</span> <span class='hs-layout'>(</span><span class='hs-varid'>stmtQuery</span> <span class='hs-varid'>stmt'</span> <span class='hs-varid'>vals</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varop'>$$</span> <span class='hs-varid'>helperU</span><span class='hs-layout'>)</span>
<a name="line-620"></a>    <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>cs</span> <span class='hs-varop'>++</span> <span class='hs-varid'>us</span>
<a name="line-621"></a>  <span class='hs-keyword'>where</span>
<a name="line-622"></a>    <span class='hs-varid'>getAll</span> <span class='hs-varid'>front</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-623"></a>        <span class='hs-varid'>x</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span>
<a name="line-624"></a>        <span class='hs-keyword'>case</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-625"></a>            <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>front</span> <span class='hs-conid'>[]</span>
<a name="line-626"></a>            <span class='hs-conid'>Just</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistText</span> <span class='hs-varid'>con</span><span class='hs-layout'>,</span> <span class='hs-conid'>PersistText</span> <span class='hs-varid'>col</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>getAll</span> <span class='hs-layout'>(</span><span class='hs-varid'>front</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conop'>:</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>con</span><span class='hs-layout'>,</span> <span class='hs-varid'>col</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-627"></a>            <span class='hs-conid'>Just</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistByteString</span> <span class='hs-varid'>con</span><span class='hs-layout'>,</span> <span class='hs-conid'>PersistByteString</span> <span class='hs-varid'>col</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>getAll</span> <span class='hs-layout'>(</span><span class='hs-varid'>front</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conop'>:</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf8</span> <span class='hs-varid'>con</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf8</span> <span class='hs-varid'>col</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-628"></a>            <span class='hs-conid'>Just</span> <span class='hs-varid'>o</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>error</span> <span class='hs-varop'>$</span> <span class='hs-str'>"unexpected datatype returned for postgres o="</span><span class='hs-varop'>++</span><span class='hs-varid'>show</span> <span class='hs-varid'>o</span>
<a name="line-629"></a>    <span class='hs-varid'>helperU</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-630"></a>        <span class='hs-varid'>rows</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getAll</span> <span class='hs-varid'>id</span>
<a name="line-631"></a>        <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>Right</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Right</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fst</span> <span class='hs-varop'>.</span> <span class='hs-varid'>head</span> <span class='hs-varop'>&amp;&amp;&amp;</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span> <span class='hs-varop'>.</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-632"></a>               <span class='hs-varop'>$</span> <span class='hs-varid'>groupBy</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-varop'>`on`</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-varid'>rows</span>
<a name="line-633"></a>    <span class='hs-varid'>helper</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-634"></a>        <span class='hs-varid'>x</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span>
<a name="line-635"></a>        <span class='hs-keyword'>case</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-636"></a>            <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-conid'>[]</span>
<a name="line-637"></a>            <span class='hs-conid'>Just</span> <span class='hs-varid'>x'</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-638"></a>                <span class='hs-varid'>col</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>liftIO</span> <span class='hs-varop'>$</span> <span class='hs-varid'>getColumn</span> <span class='hs-varid'>getter</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityDB</span> <span class='hs-varid'>def</span><span class='hs-layout'>)</span> <span class='hs-varid'>x'</span>
<a name="line-639"></a>                <span class='hs-keyword'>let</span> <span class='hs-varid'>col'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>col</span> <span class='hs-keyword'>of</span>
<a name="line-640"></a>                            <span class='hs-conid'>Left</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Left</span> <span class='hs-varid'>e</span>
<a name="line-641"></a>                            <span class='hs-conid'>Right</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Left</span> <span class='hs-varid'>c</span>
<a name="line-642"></a>                <span class='hs-varid'>cols</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>helper</span>
<a name="line-643"></a>                <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>col'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>cols</span>
<a name="line-644"></a>
<a name="line-645"></a><a name="safeToRemove"></a><span class='hs-comment'>-- | Check if a column name is listed as the "safe to remove" in the entity</span>
<a name="line-646"></a><span class='hs-comment'>-- list.</span>
<a name="line-647"></a><span class='hs-definition'>safeToRemove</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>EntityDef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-648"></a><span class='hs-definition'>safeToRemove</span> <span class='hs-varid'>def</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span> <span class='hs-varid'>colName</span><span class='hs-layout'>)</span>
<a name="line-649"></a>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>any</span> <span class='hs-layout'>(</span><span class='hs-varid'>elem</span> <span class='hs-str'>"SafeToRemove"</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fieldAttrs</span><span class='hs-layout'>)</span>
<a name="line-650"></a>    <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-conid'>DBName</span> <span class='hs-varid'>colName</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fieldDB</span><span class='hs-layout'>)</span>
<a name="line-651"></a>    <span class='hs-varop'>$</span> <span class='hs-varid'>entityFields</span> <span class='hs-varid'>def</span>
<a name="line-652"></a>
<a name="line-653"></a><a name="getAlters"></a><span class='hs-definition'>getAlters</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>EntityDef</span><span class='hs-keyglyph'>]</span>
<a name="line-654"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EntityDef</span>
<a name="line-655"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>Column</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>DBName</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DBName</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-656"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>Column</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>DBName</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DBName</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-657"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>AlterColumn'</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>AlterTable</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-658"></a><span class='hs-definition'>getAlters</span> <span class='hs-varid'>defs</span> <span class='hs-varid'>def</span> <span class='hs-layout'>(</span><span class='hs-varid'>c1</span><span class='hs-layout'>,</span> <span class='hs-varid'>u1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>c2</span><span class='hs-layout'>,</span> <span class='hs-varid'>u2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-659"></a>    <span class='hs-layout'>(</span><span class='hs-varid'>getAltersC</span> <span class='hs-varid'>c1</span> <span class='hs-varid'>c2</span><span class='hs-layout'>,</span> <span class='hs-varid'>getAltersU</span> <span class='hs-varid'>u1</span> <span class='hs-varid'>u2</span><span class='hs-layout'>)</span>
<a name="line-660"></a>  <span class='hs-keyword'>where</span>
<a name="line-661"></a>    <span class='hs-varid'>getAltersC</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>old</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>cName</span> <span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-conid'>Drop</span> <span class='hs-varop'>$</span> <span class='hs-varid'>safeToRemove</span> <span class='hs-varid'>def</span> <span class='hs-varop'>$</span> <span class='hs-varid'>cName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>old</span>
<a name="line-662"></a>    <span class='hs-varid'>getAltersC</span> <span class='hs-layout'>(</span><span class='hs-varid'>new</span><span class='hs-conop'>:</span><span class='hs-varid'>news</span><span class='hs-layout'>)</span> <span class='hs-varid'>old</span> <span class='hs-keyglyph'>=</span>
<a name="line-663"></a>        <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>alters</span><span class='hs-layout'>,</span> <span class='hs-varid'>old'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findAlters</span> <span class='hs-varid'>defs</span> <span class='hs-layout'>(</span><span class='hs-varid'>entityDB</span> <span class='hs-varid'>def</span><span class='hs-layout'>)</span> <span class='hs-varid'>new</span> <span class='hs-varid'>old</span>
<a name="line-664"></a>         <span class='hs-keyword'>in</span> <span class='hs-varid'>alters</span> <span class='hs-varop'>++</span> <span class='hs-varid'>getAltersC</span> <span class='hs-varid'>news</span> <span class='hs-varid'>old'</span>
<a name="line-665"></a>
<a name="line-666"></a>    <span class='hs-varid'>getAltersU</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>DBName</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DBName</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-667"></a>               <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>DBName</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DBName</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-668"></a>               <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>AlterTable</span><span class='hs-keyglyph'>]</span>
<a name="line-669"></a>    <span class='hs-varid'>getAltersU</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>old</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-conid'>DropConstraint</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>isManual</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>fst</span> <span class='hs-varid'>old</span>
<a name="line-670"></a>    <span class='hs-varid'>getAltersU</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-varid'>cols</span><span class='hs-layout'>)</span><span class='hs-conop'>:</span><span class='hs-varid'>news</span><span class='hs-layout'>)</span> <span class='hs-varid'>old</span> <span class='hs-keyglyph'>=</span>
<a name="line-671"></a>        <span class='hs-keyword'>case</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>name</span> <span class='hs-varid'>old</span> <span class='hs-keyword'>of</span>
<a name="line-672"></a>            <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>AddUniqueConstraint</span> <span class='hs-varid'>name</span> <span class='hs-varid'>cols</span> <span class='hs-conop'>:</span> <span class='hs-varid'>getAltersU</span> <span class='hs-varid'>news</span> <span class='hs-varid'>old</span>
<a name="line-673"></a>            <span class='hs-conid'>Just</span> <span class='hs-varid'>ocols</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-674"></a>                <span class='hs-keyword'>let</span> <span class='hs-varid'>old'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>x</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-varid'>old</span>
<a name="line-675"></a>                 <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>sort</span> <span class='hs-varid'>cols</span> <span class='hs-varop'>==</span> <span class='hs-varid'>sort</span> <span class='hs-varid'>ocols</span>
<a name="line-676"></a>                        <span class='hs-keyword'>then</span> <span class='hs-varid'>getAltersU</span> <span class='hs-varid'>news</span> <span class='hs-varid'>old'</span>
<a name="line-677"></a>                        <span class='hs-keyword'>else</span>  <span class='hs-conid'>DropConstraint</span> <span class='hs-varid'>name</span>
<a name="line-678"></a>                            <span class='hs-conop'>:</span> <span class='hs-conid'>AddUniqueConstraint</span> <span class='hs-varid'>name</span> <span class='hs-varid'>cols</span>
<a name="line-679"></a>                            <span class='hs-conop'>:</span> <span class='hs-varid'>getAltersU</span> <span class='hs-varid'>news</span> <span class='hs-varid'>old'</span>
<a name="line-680"></a>
<a name="line-681"></a>    <span class='hs-comment'>-- Don't drop constraints which were manually added.</span>
<a name="line-682"></a>    <span class='hs-varid'>isManual</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"__manual_"</span> <span class='hs-varop'>`</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>isPrefixOf</span><span class='hs-varop'>`</span> <span class='hs-varid'>x</span>
<a name="line-683"></a>
<a name="line-684"></a><a name="getColumn"></a><span class='hs-definition'>getColumn</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Statement</span><span class='hs-layout'>)</span>
<a name="line-685"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistValue</span><span class='hs-keyglyph'>]</span>
<a name="line-686"></a>          <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Either</span> <span class='hs-conid'>Text</span> <span class='hs-conid'>Column</span><span class='hs-layout'>)</span>
<a name="line-687"></a><span class='hs-definition'>getColumn</span> <span class='hs-varid'>getter</span> <span class='hs-varid'>tname</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistText</span> <span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-conid'>PersistText</span> <span class='hs-varid'>y</span><span class='hs-layout'>,</span> <span class='hs-conid'>PersistText</span> <span class='hs-varid'>z</span><span class='hs-layout'>,</span> <span class='hs-varid'>d</span><span class='hs-layout'>,</span> <span class='hs-varid'>npre</span><span class='hs-layout'>,</span> <span class='hs-varid'>nscl</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span>
<a name="line-688"></a>    <span class='hs-keyword'>case</span> <span class='hs-varid'>d'</span> <span class='hs-keyword'>of</span>
<a name="line-689"></a>        <span class='hs-conid'>Left</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Left</span> <span class='hs-varid'>s</span>
<a name="line-690"></a>        <span class='hs-conid'>Right</span> <span class='hs-varid'>d''</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-691"></a>            <span class='hs-keyword'>case</span> <span class='hs-varid'>getType</span> <span class='hs-varid'>z</span> <span class='hs-keyword'>of</span>
<a name="line-692"></a>                <span class='hs-conid'>Left</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Left</span> <span class='hs-varid'>s</span>
<a name="line-693"></a>                <span class='hs-conid'>Right</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-694"></a>                    <span class='hs-keyword'>let</span> <span class='hs-varid'>cname</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DBName</span> <span class='hs-varid'>x</span>
<a name="line-695"></a>                    <span class='hs-varid'>ref</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getRef</span> <span class='hs-varid'>cname</span>
<a name="line-696"></a>                    <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>Column</span>
<a name="line-697"></a>                        <span class='hs-layout'>{</span> <span class='hs-varid'>cName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cname</span>
<a name="line-698"></a>                        <span class='hs-layout'>,</span> <span class='hs-varid'>cNull</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y</span> <span class='hs-varop'>==</span> <span class='hs-str'>"YES"</span>
<a name="line-699"></a>                        <span class='hs-layout'>,</span> <span class='hs-varid'>cSqlType</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-700"></a>                        <span class='hs-layout'>,</span> <span class='hs-varid'>cDefault</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-varid'>stripSuffixes</span> <span class='hs-varid'>d''</span>
<a name="line-701"></a>                        <span class='hs-layout'>,</span> <span class='hs-varid'>cDefaultConstraintName</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-702"></a>                        <span class='hs-layout'>,</span> <span class='hs-varid'>cMaxLen</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-703"></a>                        <span class='hs-layout'>,</span> <span class='hs-varid'>cReference</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ref</span>
<a name="line-704"></a>                        <span class='hs-layout'>}</span>
<a name="line-705"></a>  <span class='hs-keyword'>where</span>
<a name="line-706"></a>    <span class='hs-varid'>stripSuffixes</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span>
<a name="line-707"></a>        <span class='hs-varid'>loop'</span>
<a name="line-708"></a>            <span class='hs-keyglyph'>[</span> <span class='hs-str'>"::character varying"</span>
<a name="line-709"></a>            <span class='hs-layout'>,</span> <span class='hs-str'>"::text"</span>
<a name="line-710"></a>            <span class='hs-keyglyph'>]</span>
<a name="line-711"></a>      <span class='hs-keyword'>where</span>
<a name="line-712"></a>        <span class='hs-varid'>loop'</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-713"></a>        <span class='hs-varid'>loop'</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-714"></a>            <span class='hs-keyword'>case</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>stripSuffix</span> <span class='hs-varid'>p</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>of</span>
<a name="line-715"></a>                <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>loop'</span> <span class='hs-varid'>ps</span>
<a name="line-716"></a>                <span class='hs-conid'>Just</span> <span class='hs-varid'>t'</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>t'</span>
<a name="line-717"></a>    <span class='hs-varid'>getRef</span> <span class='hs-varid'>cname</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-718"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>sql</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-719"></a>                <span class='hs-keyglyph'>[</span> <span class='hs-str'>"SELECT COUNT(*) FROM "</span>
<a name="line-720"></a>                <span class='hs-layout'>,</span> <span class='hs-str'>"information_schema.table_constraints "</span>
<a name="line-721"></a>                <span class='hs-layout'>,</span> <span class='hs-str'>"WHERE table_catalog=current_database() "</span>
<a name="line-722"></a>                <span class='hs-layout'>,</span> <span class='hs-str'>"AND table_schema=current_schema() "</span>
<a name="line-723"></a>                <span class='hs-layout'>,</span> <span class='hs-str'>"AND table_name=? "</span>
<a name="line-724"></a>                <span class='hs-layout'>,</span> <span class='hs-str'>"AND constraint_type='FOREIGN KEY' "</span>
<a name="line-725"></a>                <span class='hs-layout'>,</span> <span class='hs-str'>"AND constraint_name=?"</span>
<a name="line-726"></a>                <span class='hs-keyglyph'>]</span>
<a name="line-727"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>ref</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>refName</span> <span class='hs-varid'>tname</span> <span class='hs-varid'>cname</span>
<a name="line-728"></a>        <span class='hs-varid'>stmt</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getter</span> <span class='hs-varid'>sql</span>
<a name="line-729"></a>        <span class='hs-varid'>with</span> <span class='hs-layout'>(</span><span class='hs-varid'>stmtQuery</span> <span class='hs-varid'>stmt</span>
<a name="line-730"></a>                     <span class='hs-keyglyph'>[</span> <span class='hs-conid'>PersistText</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unDBName</span> <span class='hs-varid'>tname</span>
<a name="line-731"></a>                     <span class='hs-layout'>,</span> <span class='hs-conid'>PersistText</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unDBName</span> <span class='hs-varid'>ref</span>
<a name="line-732"></a>                     <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varop'>$$</span> <span class='hs-keyword'>do</span>
<a name="line-733"></a>            <span class='hs-conid'>Just</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PersistInt64</span> <span class='hs-varid'>i</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>CL</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span>
<a name="line-734"></a>            <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>i</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span> <span class='hs-str'>""</span><span class='hs-layout'>,</span> <span class='hs-varid'>ref</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-735"></a>    <span class='hs-varid'>d'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>d</span> <span class='hs-keyword'>of</span>
<a name="line-736"></a>            <span class='hs-conid'>PersistNull</span>   <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>Nothing</span>
<a name="line-737"></a>            <span class='hs-conid'>PersistText</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>t</span>
<a name="line-738"></a>            <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Left</span> <span class='hs-varop'>$</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Invalid default column: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>d</span>
<a name="line-739"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"int4"</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlInt32</span>
<a name="line-740"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"int8"</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlInt64</span>
<a name="line-741"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"varchar"</span>     <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlString</span>
<a name="line-742"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"date"</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlDay</span>
<a name="line-743"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"bool"</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlBool</span>
<a name="line-744"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"timestamptz"</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlDayTime</span>
<a name="line-745"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"float4"</span>      <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlReal</span>
<a name="line-746"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"float8"</span>      <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlReal</span>
<a name="line-747"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"bytea"</span>       <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlBlob</span>
<a name="line-748"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"time"</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>SqlTime</span>
<a name="line-749"></a>    <span class='hs-varid'>getType</span> <span class='hs-str'>"numeric"</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getNumeric</span> <span class='hs-varid'>npre</span> <span class='hs-varid'>nscl</span>
<a name="line-750"></a>    <span class='hs-varid'>getType</span> <span class='hs-varid'>a</span>             <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-conid'>SqlOther</span> <span class='hs-varid'>a</span>
<a name="line-751"></a>
<a name="line-752"></a>    <span class='hs-varid'>getNumeric</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistInt64</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistInt64</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-conid'>SqlNumeric</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-753"></a>    <span class='hs-varid'>getNumeric</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span> <span class='hs-varop'>$</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Can not get numeric field precision, got: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>a</span> <span class='hs-varop'>++</span> <span class='hs-str'>" and "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>b</span> <span class='hs-varop'>++</span> <span class='hs-str'>" as precision and scale"</span>
<a name="line-754"></a><span class='hs-definition'>getColumn</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span>
<a name="line-755"></a>    <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Left</span> <span class='hs-varop'>$</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Invalid result from information_schema: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>x</span>
<a name="line-756"></a>
<a name="line-757"></a><a name="sqlTypeEq"></a><span class='hs-comment'>-- | Intelligent comparison of SQL types, to account for SqlInt32 vs SqlOther integer</span>
<a name="line-758"></a><span class='hs-definition'>sqlTypeEq</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SqlType</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>SqlType</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-759"></a><span class='hs-definition'>sqlTypeEq</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span>
<a name="line-760"></a>    <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>toCaseFold</span> <span class='hs-layout'>(</span><span class='hs-varid'>showSqlType</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>toCaseFold</span> <span class='hs-layout'>(</span><span class='hs-varid'>showSqlType</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-761"></a>
<a name="line-762"></a><a name="findAlters"></a><span class='hs-definition'>findAlters</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>EntityDef</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Column</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Column</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>AlterColumn'</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Column</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-763"></a><span class='hs-definition'>findAlters</span> <span class='hs-varid'>defs</span> <span class='hs-sel'>_tablename</span> <span class='hs-varid'>col</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Column</span> <span class='hs-varid'>name</span> <span class='hs-varid'>isNull</span> <span class='hs-varid'>sqltype</span> <span class='hs-varid'>def</span> <span class='hs-sel'>_defConstraintName</span> <span class='hs-sel'>_maxLen</span> <span class='hs-varid'>ref</span><span class='hs-layout'>)</span> <span class='hs-varid'>cols</span> <span class='hs-keyglyph'>=</span>
<a name="line-764"></a>    <span class='hs-keyword'>case</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>cName</span> <span class='hs-varid'>c</span> <span class='hs-varop'>==</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-varid'>cols</span> <span class='hs-keyword'>of</span>
<a name="line-765"></a>        <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-conid'>Add'</span> <span class='hs-varid'>col</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-varid'>cols</span><span class='hs-layout'>)</span>
<a name="line-766"></a>        <span class='hs-conid'>Column</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>isNull'</span> <span class='hs-varid'>sqltype'</span> <span class='hs-varid'>def'</span> <span class='hs-sel'>_defConstraintName'</span> <span class='hs-sel'>_maxLen'</span> <span class='hs-varid'>ref'</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-767"></a>            <span class='hs-keyword'>let</span> <span class='hs-varid'>refDrop</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-768"></a>                <span class='hs-varid'>refDrop</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>cname</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-conid'>DropReference</span> <span class='hs-varid'>cname</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-769"></a>                <span class='hs-varid'>refAdd</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-770"></a>                <span class='hs-varid'>refAdd</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>tname</span><span class='hs-layout'>,</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-771"></a>                    <span class='hs-keyword'>case</span> <span class='hs-varid'>find</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-varid'>tname</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>entityDB</span><span class='hs-layout'>)</span> <span class='hs-varid'>defs</span> <span class='hs-keyword'>of</span>
<a name="line-772"></a>                        <span class='hs-conid'>Just</span> <span class='hs-varid'>refdef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>tname</span><span class='hs-layout'>,</span> <span class='hs-conid'>AddReference</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>name</span><span class='hs-keyglyph'>]</span> <span class='hs-layout'>(</span><span class='hs-varid'>dbIdColumnsEsc</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>refdef</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-773"></a>                        <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>error</span> <span class='hs-varop'>$</span> <span class='hs-str'>"could not find the entityDef for reftable["</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>tname</span> <span class='hs-varop'>++</span> <span class='hs-str'>"]"</span>
<a name="line-774"></a>                <span class='hs-varid'>modRef</span> <span class='hs-keyglyph'>=</span>
<a name="line-775"></a>                    <span class='hs-keyword'>if</span> <span class='hs-varid'>fmap</span> <span class='hs-varid'>snd</span> <span class='hs-varid'>ref</span> <span class='hs-varop'>==</span> <span class='hs-varid'>fmap</span> <span class='hs-varid'>snd</span> <span class='hs-varid'>ref'</span>
<a name="line-776"></a>                        <span class='hs-keyword'>then</span> <span class='hs-conid'>[]</span>
<a name="line-777"></a>                        <span class='hs-keyword'>else</span> <span class='hs-varid'>refDrop</span> <span class='hs-varid'>ref'</span> <span class='hs-varop'>++</span> <span class='hs-varid'>refAdd</span> <span class='hs-varid'>ref</span>
<a name="line-778"></a>                <span class='hs-varid'>modNull</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-layout'>(</span><span class='hs-varid'>isNull</span><span class='hs-layout'>,</span> <span class='hs-varid'>isNull'</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-779"></a>                            <span class='hs-layout'>(</span><span class='hs-conid'>True</span><span class='hs-layout'>,</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-conid'>IsNull</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-780"></a>                            <span class='hs-layout'>(</span><span class='hs-conid'>False</span><span class='hs-layout'>,</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-781"></a>                                <span class='hs-keyword'>let</span> <span class='hs-varid'>up</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>def</span> <span class='hs-keyword'>of</span>
<a name="line-782"></a>                                            <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>id</span>
<a name="line-783"></a>                                            <span class='hs-conid'>Just</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conop'>:</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-conid'>Update'</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-784"></a>                                 <span class='hs-keyword'>in</span> <span class='hs-varid'>up</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-conid'>NotNull</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-785"></a>                            <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>[]</span>
<a name="line-786"></a>                <span class='hs-varid'>modType</span>
<a name="line-787"></a>                    <span class='hs-keyglyph'>|</span> <span class='hs-varid'>sqlTypeEq</span> <span class='hs-varid'>sqltype</span> <span class='hs-varid'>sqltype'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-788"></a>                    <span class='hs-comment'>-- When converting from Persistent pre-2.0 databases, we</span>
<a name="line-789"></a>                    <span class='hs-comment'>-- need to make sure that TIMESTAMP WITHOUT TIME ZONE is</span>
<a name="line-790"></a>                    <span class='hs-comment'>-- treated as UTC.</span>
<a name="line-791"></a>                    <span class='hs-keyglyph'>|</span> <span class='hs-varid'>sqltype</span> <span class='hs-varop'>==</span> <span class='hs-conid'>SqlDayTime</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>sqltype'</span> <span class='hs-varop'>==</span> <span class='hs-conid'>SqlOther</span> <span class='hs-str'>"timestamp"</span> <span class='hs-keyglyph'>=</span>
<a name="line-792"></a>                        <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-conid'>Type</span> <span class='hs-varid'>sqltype</span> <span class='hs-varop'>$</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-793"></a>                            <span class='hs-keyglyph'>[</span> <span class='hs-str'>" USING "</span>
<a name="line-794"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>name</span>
<a name="line-795"></a>                            <span class='hs-layout'>,</span> <span class='hs-str'>" AT TIME ZONE 'UTC'"</span>
<a name="line-796"></a>                            <span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-797"></a>                    <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-conid'>Type</span> <span class='hs-varid'>sqltype</span> <span class='hs-str'>""</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-798"></a>                <span class='hs-varid'>modDef</span> <span class='hs-keyglyph'>=</span>
<a name="line-799"></a>                    <span class='hs-keyword'>if</span> <span class='hs-varid'>def</span> <span class='hs-varop'>==</span> <span class='hs-varid'>def'</span>
<a name="line-800"></a>                        <span class='hs-keyword'>then</span> <span class='hs-conid'>[]</span>
<a name="line-801"></a>                        <span class='hs-keyword'>else</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>def</span> <span class='hs-keyword'>of</span>
<a name="line-802"></a>                                <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-conid'>NoDefault</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-803"></a>                                <span class='hs-conid'>Just</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>name</span><span class='hs-layout'>,</span> <span class='hs-conid'>Default</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-804"></a>             <span class='hs-keyword'>in</span> <span class='hs-layout'>(</span><span class='hs-varid'>modRef</span> <span class='hs-varop'>++</span> <span class='hs-varid'>modDef</span> <span class='hs-varop'>++</span> <span class='hs-varid'>modNull</span> <span class='hs-varop'>++</span> <span class='hs-varid'>modType</span><span class='hs-layout'>,</span>
<a name="line-805"></a>                 <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>cName</span> <span class='hs-varid'>c</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-varid'>cols</span><span class='hs-layout'>)</span>
<a name="line-806"></a>
<a name="line-807"></a><a name="getAddReference"></a><span class='hs-comment'>-- | Get the references to be added to a table for the given column.</span>
<a name="line-808"></a><span class='hs-definition'>getAddReference</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>EntityDef</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span><span class='hs-layout'>,</span> <span class='hs-conid'>DBName</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>AlterDB</span>
<a name="line-809"></a><span class='hs-definition'>getAddReference</span> <span class='hs-varid'>allDefs</span> <span class='hs-varid'>table</span> <span class='hs-varid'>reftable</span> <span class='hs-varid'>cname</span> <span class='hs-varid'>ref</span> <span class='hs-keyglyph'>=</span>
<a name="line-810"></a>    <span class='hs-keyword'>case</span> <span class='hs-varid'>ref</span> <span class='hs-keyword'>of</span>
<a name="line-811"></a>        <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Nothing</span>
<a name="line-812"></a>        <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-conid'>AlterColumn</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-conid'>AddReference</span> <span class='hs-layout'>(</span><span class='hs-varid'>refName</span> <span class='hs-varid'>table</span> <span class='hs-varid'>cname</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>cname</span><span class='hs-keyglyph'>]</span> <span class='hs-varid'>id_</span><span class='hs-layout'>)</span>
<a name="line-813"></a>                          <span class='hs-keyword'>where</span>
<a name="line-814"></a>                            <span class='hs-varid'>id_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>error</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Could not find ID of entity "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>reftable</span><span class='hs-layout'>)</span>
<a name="line-815"></a>                                        <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-816"></a>                                          <span class='hs-varid'>entDef</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>find</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-varid'>reftable</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>entityDB</span><span class='hs-layout'>)</span> <span class='hs-varid'>allDefs</span>
<a name="line-817"></a>                                          <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dbIdColumnsEsc</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>entDef</span>
<a name="line-818"></a>
<a name="line-819"></a>
<a name="line-820"></a><a name="showColumn"></a><span class='hs-definition'>showColumn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Column</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-821"></a><span class='hs-definition'>showColumn</span> <span class='hs-layout'>(</span><span class='hs-conid'>Column</span> <span class='hs-varid'>n</span> <span class='hs-varid'>nu</span> <span class='hs-varid'>sqlType'</span> <span class='hs-varid'>def</span> <span class='hs-sel'>_defConstraintName</span> <span class='hs-sel'>_maxLen</span> <span class='hs-sel'>_ref</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-822"></a>    <span class='hs-keyglyph'>[</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>n</span>
<a name="line-823"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" "</span>
<a name="line-824"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>showSqlType</span> <span class='hs-varid'>sqlType'</span>
<a name="line-825"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" "</span>
<a name="line-826"></a>    <span class='hs-layout'>,</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>nu</span> <span class='hs-keyword'>then</span> <span class='hs-str'>"NULL"</span> <span class='hs-keyword'>else</span> <span class='hs-str'>"NOT NULL"</span>
<a name="line-827"></a>    <span class='hs-layout'>,</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>def</span> <span class='hs-keyword'>of</span>
<a name="line-828"></a>        <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-str'>""</span>
<a name="line-829"></a>        <span class='hs-conid'>Just</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-str'>" DEFAULT "</span> <span class='hs-varop'>&lt;&gt;</span> <span class='hs-varid'>s</span>
<a name="line-830"></a>    <span class='hs-keyglyph'>]</span>
<a name="line-831"></a>
<a name="line-832"></a><a name="showSqlType"></a><span class='hs-definition'>showSqlType</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>SqlType</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-833"></a><span class='hs-definition'>showSqlType</span> <span class='hs-conid'>SqlString</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"VARCHAR"</span>
<a name="line-834"></a><span class='hs-definition'>showSqlType</span> <span class='hs-conid'>SqlInt32</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"INT4"</span>
<a name="line-835"></a><span class='hs-definition'>showSqlType</span> <span class='hs-conid'>SqlInt64</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"INT8"</span>
<a name="line-836"></a><span class='hs-definition'>showSqlType</span> <span class='hs-conid'>SqlReal</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"DOUBLE PRECISION"</span>
<a name="line-837"></a><span class='hs-definition'>showSqlType</span> <span class='hs-layout'>(</span><span class='hs-conid'>SqlNumeric</span> <span class='hs-varid'>s</span> <span class='hs-varid'>prec</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span> <span class='hs-str'>"NUMERIC("</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-varid'>show</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-str'>","</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-varid'>show</span> <span class='hs-varid'>prec</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-str'>")"</span> <span class='hs-keyglyph'>]</span>
<a name="line-838"></a><span class='hs-definition'>showSqlType</span> <span class='hs-conid'>SqlDay</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"DATE"</span>
<a name="line-839"></a><span class='hs-definition'>showSqlType</span> <span class='hs-conid'>SqlTime</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"TIME"</span>
<a name="line-840"></a><span class='hs-definition'>showSqlType</span> <span class='hs-conid'>SqlDayTime</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"TIMESTAMP WITH TIME ZONE"</span>
<a name="line-841"></a><span class='hs-definition'>showSqlType</span> <span class='hs-conid'>SqlBlob</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"BYTEA"</span>
<a name="line-842"></a><span class='hs-definition'>showSqlType</span> <span class='hs-conid'>SqlBool</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"BOOLEAN"</span>
<a name="line-843"></a>
<a name="line-844"></a><span class='hs-comment'>-- Added for aliasing issues re: https://github.com/yesodweb/yesod/issues/682</span>
<a name="line-845"></a><span class='hs-definition'>showSqlType</span> <span class='hs-layout'>(</span><span class='hs-conid'>SqlOther</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>toLower</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-str'>"integer"</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"INT4"</span>
<a name="line-846"></a>
<a name="line-847"></a><span class='hs-definition'>showSqlType</span> <span class='hs-layout'>(</span><span class='hs-conid'>SqlOther</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span>
<a name="line-848"></a>
<a name="line-849"></a><a name="showAlterDb"></a><span class='hs-definition'>showAlterDb</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>AlterDB</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>Bool</span><span class='hs-layout'>,</span> <span class='hs-conid'>Text</span><span class='hs-layout'>)</span>
<a name="line-850"></a><span class='hs-definition'>showAlterDb</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddTable</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>False</span><span class='hs-layout'>,</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-851"></a><span class='hs-definition'>showAlterDb</span> <span class='hs-layout'>(</span><span class='hs-conid'>AlterColumn</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-varid'>ac</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-852"></a>    <span class='hs-layout'>(</span><span class='hs-varid'>isUnsafe</span> <span class='hs-varid'>ac</span><span class='hs-layout'>,</span> <span class='hs-varid'>showAlter</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-varid'>ac</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-853"></a>  <span class='hs-keyword'>where</span>
<a name="line-854"></a>    <span class='hs-varid'>isUnsafe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Drop</span> <span class='hs-varid'>safeRemove</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>not</span> <span class='hs-varid'>safeRemove</span>
<a name="line-855"></a>    <span class='hs-varid'>isUnsafe</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-856"></a><span class='hs-definition'>showAlterDb</span> <span class='hs-layout'>(</span><span class='hs-conid'>AlterTable</span> <span class='hs-varid'>t</span> <span class='hs-varid'>at</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>False</span><span class='hs-layout'>,</span> <span class='hs-varid'>showAlterTable</span> <span class='hs-varid'>t</span> <span class='hs-varid'>at</span><span class='hs-layout'>)</span>
<a name="line-857"></a>
<a name="line-858"></a><a name="showAlterTable"></a><span class='hs-definition'>showAlterTable</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>AlterTable</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-859"></a><span class='hs-definition'>showAlterTable</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-conid'>AddUniqueConstraint</span> <span class='hs-varid'>cname</span> <span class='hs-varid'>cols</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-860"></a>    <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-861"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-862"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" ADD CONSTRAINT "</span>
<a name="line-863"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>cname</span>
<a name="line-864"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" UNIQUE("</span>
<a name="line-865"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>cols</span>
<a name="line-866"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>")"</span>
<a name="line-867"></a>    <span class='hs-keyglyph'>]</span>
<a name="line-868"></a><span class='hs-definition'>showAlterTable</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-conid'>DropConstraint</span> <span class='hs-varid'>cname</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-869"></a>    <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-870"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-871"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" DROP CONSTRAINT "</span>
<a name="line-872"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>cname</span>
<a name="line-873"></a>    <span class='hs-keyglyph'>]</span>
<a name="line-874"></a>
<a name="line-875"></a><a name="showAlter"></a><span class='hs-definition'>showAlter</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>AlterColumn'</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-876"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>Type</span> <span class='hs-varid'>t</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-877"></a>    <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-878"></a>        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-879"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-880"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" ALTER COLUMN "</span>
<a name="line-881"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>n</span>
<a name="line-882"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" TYPE "</span>
<a name="line-883"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>showSqlType</span> <span class='hs-varid'>t</span>
<a name="line-884"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>extra</span>
<a name="line-885"></a>        <span class='hs-keyglyph'>]</span>
<a name="line-886"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>IsNull</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-887"></a>    <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-888"></a>        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-889"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-890"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" ALTER COLUMN "</span>
<a name="line-891"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>n</span>
<a name="line-892"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" DROP NOT NULL"</span>
<a name="line-893"></a>        <span class='hs-keyglyph'>]</span>
<a name="line-894"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>NotNull</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-895"></a>    <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-896"></a>        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-897"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-898"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" ALTER COLUMN "</span>
<a name="line-899"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>n</span>
<a name="line-900"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" SET NOT NULL"</span>
<a name="line-901"></a>        <span class='hs-keyglyph'>]</span>
<a name="line-902"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-conid'>Add'</span> <span class='hs-varid'>col</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-903"></a>    <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-904"></a>        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-905"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-906"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" ADD COLUMN "</span>
<a name="line-907"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>showColumn</span> <span class='hs-varid'>col</span>
<a name="line-908"></a>        <span class='hs-keyglyph'>]</span>
<a name="line-909"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>Drop</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-910"></a>    <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-911"></a>        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-912"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-913"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" DROP COLUMN "</span>
<a name="line-914"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>n</span>
<a name="line-915"></a>        <span class='hs-keyglyph'>]</span>
<a name="line-916"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>Default</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-917"></a>    <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-918"></a>        <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-919"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-920"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" ALTER COLUMN "</span>
<a name="line-921"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>n</span>
<a name="line-922"></a>        <span class='hs-layout'>,</span> <span class='hs-str'>" SET DEFAULT "</span>
<a name="line-923"></a>        <span class='hs-layout'>,</span> <span class='hs-varid'>s</span>
<a name="line-924"></a>        <span class='hs-keyglyph'>]</span>
<a name="line-925"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>NoDefault</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-926"></a>    <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-927"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-928"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" ALTER COLUMN "</span>
<a name="line-929"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>n</span>
<a name="line-930"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" DROP DEFAULT"</span>
<a name="line-931"></a>    <span class='hs-keyglyph'>]</span>
<a name="line-932"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>Update'</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-933"></a>    <span class='hs-keyglyph'>[</span> <span class='hs-str'>"UPDATE "</span>
<a name="line-934"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-935"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" SET "</span>
<a name="line-936"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>n</span>
<a name="line-937"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>"="</span>
<a name="line-938"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>s</span>
<a name="line-939"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" WHERE "</span>
<a name="line-940"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>n</span>
<a name="line-941"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" IS NULL"</span>
<a name="line-942"></a>    <span class='hs-keyglyph'>]</span>
<a name="line-943"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-varid'>reftable</span><span class='hs-layout'>,</span> <span class='hs-conid'>AddReference</span> <span class='hs-varid'>fkeyname</span> <span class='hs-varid'>t2</span> <span class='hs-varid'>id2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-944"></a>    <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-945"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-946"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" ADD CONSTRAINT "</span>
<a name="line-947"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>fkeyname</span>
<a name="line-948"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" FOREIGN KEY("</span>
<a name="line-949"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>t2</span>
<a name="line-950"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>") REFERENCES "</span>
<a name="line-951"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>reftable</span>
<a name="line-952"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>"("</span>
<a name="line-953"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>","</span> <span class='hs-varid'>id2</span>
<a name="line-954"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>")"</span>
<a name="line-955"></a>    <span class='hs-keyglyph'>]</span>
<a name="line-956"></a><span class='hs-definition'>showAlter</span> <span class='hs-varid'>table</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-conid'>DropReference</span> <span class='hs-varid'>cname</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span>
<a name="line-957"></a>    <span class='hs-keyglyph'>[</span> <span class='hs-str'>"ALTER TABLE "</span>
<a name="line-958"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>table</span>
<a name="line-959"></a>    <span class='hs-layout'>,</span> <span class='hs-str'>" DROP CONSTRAINT "</span>
<a name="line-960"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>cname</span>
<a name="line-961"></a>    <span class='hs-keyglyph'>]</span>
<a name="line-962"></a>
<a name="line-963"></a><a name="tableName"></a><span class='hs-comment'>-- | get the SQL string for the table that a PeristEntity represents</span>
<a name="line-964"></a><span class='hs-comment'>-- Useful for raw SQL queries</span>
<a name="line-965"></a><span class='hs-definition'>tableName</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistEntity</span> <span class='hs-varid'>record</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>record</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-966"></a><span class='hs-definition'>tableName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>escape</span> <span class='hs-varop'>.</span> <span class='hs-varid'>tableDBName</span>
<a name="line-967"></a>
<a name="line-968"></a><a name="fieldName"></a><span class='hs-comment'>-- | get the SQL string for the field that an EntityField represents</span>
<a name="line-969"></a><span class='hs-comment'>-- Useful for raw SQL queries</span>
<a name="line-970"></a><span class='hs-definition'>fieldName</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>PersistEntity</span> <span class='hs-varid'>record</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>EntityField</span> <span class='hs-varid'>record</span> <span class='hs-varid'>typ</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-971"></a><span class='hs-definition'>fieldName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>escape</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fieldDBName</span>
<a name="line-972"></a>
<a name="line-973"></a><a name="escape"></a><span class='hs-definition'>escape</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-974"></a><span class='hs-definition'>escape</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-975"></a>    <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varop'>$</span> <span class='hs-chr'>'"'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\""</span>
<a name="line-976"></a>  <span class='hs-keyword'>where</span>
<a name="line-977"></a>    <span class='hs-varid'>go</span> <span class='hs-str'>""</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>""</span>
<a name="line-978"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-chr'>'"'</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"\"\""</span> <span class='hs-varop'>++</span> <span class='hs-varid'>go</span> <span class='hs-varid'>xs</span>
<a name="line-979"></a>    <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-conop'>:</span> <span class='hs-varid'>go</span> <span class='hs-varid'>xs</span>
<a name="line-980"></a>
<a name="line-981"></a><a name="PostgresConf"></a><span class='hs-comment'>-- | Information required to connect to a PostgreSQL database</span>
<a name="line-982"></a><a name="PostgresConf"></a><span class='hs-comment'>-- using @persistent@'s generic facilities.  These values are the</span>
<a name="line-983"></a><a name="PostgresConf"></a><span class='hs-comment'>-- same that are given to 'withPostgresqlPool'.</span>
<a name="line-984"></a><a name="PostgresConf"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PostgresConf</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PostgresConf</span>
<a name="line-985"></a>    <span class='hs-layout'>{</span> <span class='hs-varid'>pgConnStr</span>  <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ConnectionString</span>
<a name="line-986"></a>      <span class='hs-comment'>-- ^ The connection string.</span>
<a name="line-987"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>pgPoolSize</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-988"></a>      <span class='hs-comment'>-- ^ How many connections should be held on the connection pool.</span>
<a name="line-989"></a>    <span class='hs-layout'>}</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-layout'>,</span> <span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-990"></a>
<a name="line-991"></a><a name="instance%20FromJSON%20PostgresConf"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>FromJSON</span> <span class='hs-conid'>PostgresConf</span> <span class='hs-keyword'>where</span>
<a name="line-992"></a>    <span class='hs-varid'>parseJSON</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyFailure</span> <span class='hs-layout'>(</span><span class='hs-str'>"Persistent: error loading PostgreSQL conf: "</span> <span class='hs-varop'>++</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-993"></a>      <span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-varid'>withObject</span> <span class='hs-str'>"PostgresConf"</span><span class='hs-layout'>)</span> <span class='hs-varid'>v</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>o</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-994"></a>        <span class='hs-varid'>database</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>o</span> <span class='hs-varop'>.:</span> <span class='hs-str'>"database"</span>
<a name="line-995"></a>        <span class='hs-varid'>host</span>     <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>o</span> <span class='hs-varop'>.:</span> <span class='hs-str'>"host"</span>
<a name="line-996"></a>        <span class='hs-varid'>port</span>     <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>o</span> <span class='hs-varop'>.:?</span> <span class='hs-str'>"port"</span> <span class='hs-varop'>.!=</span> <span class='hs-num'>5432</span>
<a name="line-997"></a>        <span class='hs-varid'>user</span>     <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>o</span> <span class='hs-varop'>.:</span> <span class='hs-str'>"user"</span>
<a name="line-998"></a>        <span class='hs-varid'>password</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>o</span> <span class='hs-varop'>.:</span> <span class='hs-str'>"password"</span>
<a name="line-999"></a>        <span class='hs-varid'>pool</span>     <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>o</span> <span class='hs-varop'>.:</span> <span class='hs-str'>"poolsize"</span>
<a name="line-1000"></a>        <span class='hs-keyword'>let</span> <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-conid'>ConnectInfo</span>
<a name="line-1001"></a>                   <span class='hs-layout'>{</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>connectHost</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>host</span>
<a name="line-1002"></a>                   <span class='hs-layout'>,</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>connectPort</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>port</span>
<a name="line-1003"></a>                   <span class='hs-layout'>,</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>connectUser</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>user</span>
<a name="line-1004"></a>                   <span class='hs-layout'>,</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>connectPassword</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>password</span>
<a name="line-1005"></a>                   <span class='hs-layout'>,</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>connectDatabase</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>database</span>
<a name="line-1006"></a>                   <span class='hs-layout'>}</span>
<a name="line-1007"></a>            <span class='hs-varid'>cstr</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PG</span><span class='hs-varop'>.</span><span class='hs-varid'>postgreSQLConnectionString</span> <span class='hs-varid'>ci</span>
<a name="line-1008"></a>        <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PostgresConf</span> <span class='hs-varid'>cstr</span> <span class='hs-varid'>pool</span>
<a name="line-1009"></a><a name="instance%20PersistConfig%20PostgresConf"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PersistConfig</span> <span class='hs-conid'>PostgresConf</span> <span class='hs-keyword'>where</span>
<a name="line-1010"></a>    <span class='hs-keyword'>type</span> <span class='hs-conid'>PersistConfigBackend</span> <span class='hs-conid'>PostgresConf</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SqlPersistT</span>
<a name="line-1011"></a>    <span class='hs-keyword'>type</span> <span class='hs-conid'>PersistConfigPool</span> <span class='hs-conid'>PostgresConf</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ConnectionPool</span>
<a name="line-1012"></a>    <span class='hs-varid'>createPoolConfig</span> <span class='hs-layout'>(</span><span class='hs-conid'>PostgresConf</span> <span class='hs-varid'>cs</span> <span class='hs-varid'>size</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runNoLoggingT</span> <span class='hs-varop'>$</span> <span class='hs-varid'>createPostgresqlPool</span> <span class='hs-varid'>cs</span> <span class='hs-varid'>size</span> <span class='hs-comment'>-- FIXME</span>
<a name="line-1013"></a>    <span class='hs-varid'>runPool</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runSqlPool</span>
<a name="line-1014"></a>    <span class='hs-varid'>loadConfig</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parseJSON</span>
<a name="line-1015"></a>
<a name="line-1016"></a>    <span class='hs-varid'>applyEnv</span> <span class='hs-varid'>c0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1017"></a>        <span class='hs-varid'>env</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>getEnvironment</span>
<a name="line-1018"></a>        <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>addUser</span> <span class='hs-varid'>env</span>
<a name="line-1019"></a>               <span class='hs-varop'>$</span> <span class='hs-varid'>addPass</span> <span class='hs-varid'>env</span>
<a name="line-1020"></a>               <span class='hs-varop'>$</span> <span class='hs-varid'>addDatabase</span> <span class='hs-varid'>env</span>
<a name="line-1021"></a>               <span class='hs-varop'>$</span> <span class='hs-varid'>addPort</span> <span class='hs-varid'>env</span>
<a name="line-1022"></a>               <span class='hs-varop'>$</span> <span class='hs-varid'>addHost</span> <span class='hs-varid'>env</span> <span class='hs-varid'>c0</span>
<a name="line-1023"></a>      <span class='hs-keyword'>where</span>
<a name="line-1024"></a>        <span class='hs-varid'>addParam</span> <span class='hs-varid'>param</span> <span class='hs-varid'>val</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span>
<a name="line-1025"></a>            <span class='hs-varid'>c</span> <span class='hs-layout'>{</span> <span class='hs-varid'>pgConnStr</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>pgConnStr</span> <span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-str'>" "</span><span class='hs-layout'>,</span> <span class='hs-varid'>param</span><span class='hs-layout'>,</span> <span class='hs-str'>"='"</span><span class='hs-layout'>,</span> <span class='hs-varid'>pgescape</span> <span class='hs-varid'>val</span><span class='hs-layout'>,</span> <span class='hs-str'>"'"</span><span class='hs-keyglyph'>]</span> <span class='hs-layout'>}</span>
<a name="line-1026"></a>
<a name="line-1027"></a>        <span class='hs-varid'>pgescape</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varop'>.</span> <span class='hs-varid'>go</span>
<a name="line-1028"></a>            <span class='hs-keyword'>where</span>
<a name="line-1029"></a>              <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-chr'>'\''</span><span class='hs-conop'>:</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'\\'</span> <span class='hs-conop'>:</span> <span class='hs-chr'>'\''</span> <span class='hs-conop'>:</span> <span class='hs-varid'>go</span> <span class='hs-varid'>rest</span>
<a name="line-1030"></a>              <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-chr'>'\\'</span><span class='hs-conop'>:</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'\\'</span> <span class='hs-conop'>:</span> <span class='hs-chr'>'\\'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>go</span> <span class='hs-varid'>rest</span>
<a name="line-1031"></a>              <span class='hs-varid'>go</span> <span class='hs-layout'>(</span> <span class='hs-varid'>x</span>  <span class='hs-conop'>:</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>      <span class='hs-varid'>x</span>      <span class='hs-conop'>:</span> <span class='hs-varid'>go</span> <span class='hs-varid'>rest</span>
<a name="line-1032"></a>              <span class='hs-varid'>go</span> <span class='hs-conid'>[]</span>          <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-1033"></a>
<a name="line-1034"></a>        <span class='hs-varid'>maybeAddParam</span> <span class='hs-varid'>param</span> <span class='hs-varid'>envvar</span> <span class='hs-varid'>env</span> <span class='hs-keyglyph'>=</span>
<a name="line-1035"></a>            <span class='hs-varid'>maybe</span> <span class='hs-varid'>id</span> <span class='hs-layout'>(</span><span class='hs-varid'>addParam</span> <span class='hs-varid'>param</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-1036"></a>            <span class='hs-varid'>lookup</span> <span class='hs-varid'>envvar</span> <span class='hs-varid'>env</span>
<a name="line-1037"></a>
<a name="line-1038"></a>        <span class='hs-varid'>addHost</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybeAddParam</span> <span class='hs-str'>"host"</span>     <span class='hs-str'>"PGHOST"</span>
<a name="line-1039"></a>        <span class='hs-varid'>addPort</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybeAddParam</span> <span class='hs-str'>"port"</span>     <span class='hs-str'>"PGPORT"</span>
<a name="line-1040"></a>        <span class='hs-varid'>addUser</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybeAddParam</span> <span class='hs-str'>"user"</span>     <span class='hs-str'>"PGUSER"</span>
<a name="line-1041"></a>        <span class='hs-varid'>addPass</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybeAddParam</span> <span class='hs-str'>"password"</span> <span class='hs-str'>"PGPASS"</span>
<a name="line-1042"></a>        <span class='hs-varid'>addDatabase</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybeAddParam</span> <span class='hs-str'>"dbname"</span>   <span class='hs-str'>"PGDATABASE"</span>
<a name="line-1043"></a>
<a name="line-1044"></a><a name="refName"></a><span class='hs-definition'>refName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DBName</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DBName</span>
<a name="line-1045"></a><span class='hs-definition'>refName</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span> <span class='hs-varid'>table</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span> <span class='hs-varid'>column</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-1046"></a>    <span class='hs-conid'>DBName</span> <span class='hs-varop'>$</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>table</span><span class='hs-layout'>,</span> <span class='hs-str'>"_"</span><span class='hs-layout'>,</span> <span class='hs-varid'>column</span><span class='hs-layout'>,</span> <span class='hs-str'>"_fkey"</span><span class='hs-keyglyph'>]</span>
<a name="line-1047"></a>
<a name="line-1048"></a><a name="udToPair"></a><span class='hs-definition'>udToPair</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>UniqueDef</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>DBName</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DBName</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1049"></a><span class='hs-definition'>udToPair</span> <span class='hs-varid'>ud</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>uniqueDBName</span> <span class='hs-varid'>ud</span><span class='hs-layout'>,</span> <span class='hs-varid'>map</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>$</span> <span class='hs-varid'>uniqueFields</span> <span class='hs-varid'>ud</span><span class='hs-layout'>)</span>
<a name="line-1050"></a>
<a name="line-1051"></a><a name="mockMigrate"></a><span class='hs-definition'>mockMigrate</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>EntityDef</span><span class='hs-keyglyph'>]</span>
<a name="line-1052"></a>         <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Statement</span><span class='hs-layout'>)</span>
<a name="line-1053"></a>         <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EntityDef</span>
<a name="line-1054"></a>         <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Either</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Text</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Bool</span><span class='hs-layout'>,</span> <span class='hs-conid'>Text</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-1055"></a><span class='hs-definition'>mockMigrate</span> <span class='hs-varid'>allDefs</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>entity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>showAlterDb</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-1056"></a>    <span class='hs-keyword'>case</span> <span class='hs-varid'>partitionEithers</span> <span class='hs-conid'>[]</span> <span class='hs-keyword'>of</span>
<a name="line-1057"></a>        <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-varid'>old''</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-varid'>migrationText</span> <span class='hs-conid'>False</span> <span class='hs-varid'>old''</span>
<a name="line-1058"></a>        <span class='hs-layout'>(</span><span class='hs-varid'>errs</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Left</span> <span class='hs-varid'>errs</span>
<a name="line-1059"></a>  <span class='hs-keyword'>where</span>
<a name="line-1060"></a>    <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>entityDB</span> <span class='hs-varid'>entity</span>
<a name="line-1061"></a>    <span class='hs-varid'>migrationText</span> <span class='hs-varid'>exists</span> <span class='hs-varid'>old''</span> <span class='hs-keyglyph'>=</span>
<a name="line-1062"></a>        <span class='hs-keyword'>if</span> <span class='hs-varid'>not</span> <span class='hs-varid'>exists</span>
<a name="line-1063"></a>            <span class='hs-keyword'>then</span> <span class='hs-varid'>createText</span> <span class='hs-varid'>newcols</span> <span class='hs-varid'>fdefs</span> <span class='hs-varid'>udspair</span>
<a name="line-1064"></a>            <span class='hs-keyword'>else</span> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>acs</span><span class='hs-layout'>,</span> <span class='hs-varid'>ats</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getAlters</span> <span class='hs-varid'>allDefs</span> <span class='hs-varid'>entity</span> <span class='hs-layout'>(</span><span class='hs-varid'>newcols</span><span class='hs-layout'>,</span> <span class='hs-varid'>udspair</span><span class='hs-layout'>)</span> <span class='hs-varid'>old'</span>
<a name="line-1065"></a>                     <span class='hs-varid'>acs'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>AlterColumn</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-varid'>acs</span>
<a name="line-1066"></a>                     <span class='hs-varid'>ats'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>AlterTable</span> <span class='hs-varid'>name</span><span class='hs-layout'>)</span> <span class='hs-varid'>ats</span>
<a name="line-1067"></a>                 <span class='hs-keyword'>in</span>  <span class='hs-varid'>acs'</span> <span class='hs-varop'>++</span> <span class='hs-varid'>ats'</span>
<a name="line-1068"></a>       <span class='hs-keyword'>where</span>
<a name="line-1069"></a>         <span class='hs-varid'>old'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>partitionEithers</span> <span class='hs-varid'>old''</span>
<a name="line-1070"></a>         <span class='hs-layout'>(</span><span class='hs-varid'>newcols'</span><span class='hs-layout'>,</span> <span class='hs-varid'>udefs</span><span class='hs-layout'>,</span> <span class='hs-varid'>fdefs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkColumns</span> <span class='hs-varid'>allDefs</span> <span class='hs-varid'>entity</span>
<a name="line-1071"></a>         <span class='hs-varid'>newcols</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>safeToRemove</span> <span class='hs-varid'>entity</span> <span class='hs-varop'>.</span> <span class='hs-varid'>cName</span><span class='hs-layout'>)</span> <span class='hs-varid'>newcols'</span>
<a name="line-1072"></a>         <span class='hs-varid'>udspair</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>udToPair</span> <span class='hs-varid'>udefs</span>
<a name="line-1073"></a>            <span class='hs-comment'>-- Check for table existence if there are no columns, workaround</span>
<a name="line-1074"></a>            <span class='hs-comment'>-- for https://github.com/yesodweb/persistent/issues/152</span>
<a name="line-1075"></a>
<a name="line-1076"></a>    <span class='hs-varid'>createText</span> <span class='hs-varid'>newcols</span> <span class='hs-varid'>fdefs</span> <span class='hs-varid'>udspair</span> <span class='hs-keyglyph'>=</span>
<a name="line-1077"></a>        <span class='hs-layout'>(</span><span class='hs-varid'>addTable</span> <span class='hs-varid'>newcols</span> <span class='hs-varid'>entity</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>uniques</span> <span class='hs-varop'>++</span> <span class='hs-varid'>references</span> <span class='hs-varop'>++</span> <span class='hs-varid'>foreignsAlt</span>
<a name="line-1078"></a>      <span class='hs-keyword'>where</span>
<a name="line-1079"></a>        <span class='hs-varid'>uniques</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>concatMap</span> <span class='hs-varid'>udspair</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>uname</span><span class='hs-layout'>,</span> <span class='hs-varid'>ucols</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-1080"></a>                <span class='hs-keyglyph'>[</span><span class='hs-conid'>AlterTable</span> <span class='hs-varid'>name</span> <span class='hs-varop'>$</span> <span class='hs-conid'>AddUniqueConstraint</span> <span class='hs-varid'>uname</span> <span class='hs-varid'>ucols</span><span class='hs-keyglyph'>]</span>
<a name="line-1081"></a>        <span class='hs-varid'>references</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapMaybe</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Column</span> <span class='hs-layout'>{</span> <span class='hs-varid'>cName</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>cname</span><span class='hs-layout'>,</span> <span class='hs-varid'>cReference</span><span class='hs-keyglyph'>=</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>refTblName</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-layout'>}</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-1082"></a>            <span class='hs-varid'>getAddReference</span> <span class='hs-varid'>allDefs</span> <span class='hs-varid'>name</span> <span class='hs-varid'>refTblName</span> <span class='hs-varid'>cname</span> <span class='hs-layout'>(</span><span class='hs-varid'>cReference</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1083"></a>                   <span class='hs-varop'>$</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>isJust</span> <span class='hs-varop'>.</span> <span class='hs-varid'>cReference</span><span class='hs-layout'>)</span> <span class='hs-varid'>newcols</span>
<a name="line-1084"></a>        <span class='hs-varid'>foreignsAlt</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>map</span> <span class='hs-varid'>fdefs</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>fdef</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-1085"></a>            <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>childfields</span><span class='hs-layout'>,</span> <span class='hs-varid'>parentfields</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unzip</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span><span class='hs-varid'>d</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>foreignFields</span> <span class='hs-varid'>fdef</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1086"></a>            <span class='hs-keyword'>in</span> <span class='hs-conid'>AlterColumn</span> <span class='hs-varid'>name</span> <span class='hs-layout'>(</span><span class='hs-varid'>foreignRefTableDBName</span> <span class='hs-varid'>fdef</span><span class='hs-layout'>,</span> <span class='hs-conid'>AddReference</span> <span class='hs-layout'>(</span><span class='hs-varid'>foreignConstraintNameDBName</span> <span class='hs-varid'>fdef</span><span class='hs-layout'>)</span> <span class='hs-varid'>childfields</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>parentfields</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-1087"></a>
<a name="line-1088"></a><a name="mockMigration"></a><span class='hs-comment'>-- | Mock a migration even when the database is not present.</span>
<a name="line-1089"></a><span class='hs-comment'>-- This function performs the same functionality of 'printMigration'</span>
<a name="line-1090"></a><span class='hs-comment'>-- with the difference that an actualy database isn't needed for it.</span>
<a name="line-1091"></a><span class='hs-definition'>mockMigration</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Migration</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-1092"></a><span class='hs-definition'>mockMigration</span> <span class='hs-varid'>mig</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-1093"></a>  <span class='hs-varid'>smap</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>newIORef</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-1094"></a>  <span class='hs-keyword'>let</span> <span class='hs-varid'>sqlbackend</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>SqlBackend</span> <span class='hs-layout'>{</span> <span class='hs-varid'>connPrepare</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-1095"></a>                                             <span class='hs-varid'>return</span> <span class='hs-conid'>Statement</span>
<a name="line-1096"></a>                                                        <span class='hs-layout'>{</span> <span class='hs-varid'>stmtFinalize</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-1097"></a>                                                        <span class='hs-layout'>,</span> <span class='hs-varid'>stmtReset</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-1098"></a>                                                        <span class='hs-layout'>,</span> <span class='hs-varid'>stmtExecute</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span>
<a name="line-1099"></a>                                                        <span class='hs-layout'>,</span> <span class='hs-varid'>stmtQuery</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-1100"></a>                                                        <span class='hs-layout'>}</span><span class='hs-layout'>,</span>
<a name="line-1101"></a>                             <span class='hs-varid'>connInsertManySql</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span>
<a name="line-1102"></a>                             <span class='hs-varid'>connInsertSql</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span><span class='hs-layout'>,</span>
<a name="line-1103"></a>                             <span class='hs-varid'>connUpsertSql</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span>
<a name="line-1104"></a>                             <span class='hs-varid'>connStmtMap</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>smap</span><span class='hs-layout'>,</span>
<a name="line-1105"></a>                             <span class='hs-varid'>connClose</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span><span class='hs-layout'>,</span>
<a name="line-1106"></a>                             <span class='hs-varid'>connMigrateSql</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mockMigrate</span><span class='hs-layout'>,</span>
<a name="line-1107"></a>                             <span class='hs-varid'>connBegin</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span><span class='hs-layout'>,</span>
<a name="line-1108"></a>                             <span class='hs-varid'>connCommit</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span><span class='hs-layout'>,</span>
<a name="line-1109"></a>                             <span class='hs-varid'>connRollback</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span><span class='hs-layout'>,</span>
<a name="line-1110"></a>                             <span class='hs-varid'>connEscapeName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>escape</span><span class='hs-layout'>,</span>
<a name="line-1111"></a>                             <span class='hs-varid'>connNoLimit</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span><span class='hs-layout'>,</span>
<a name="line-1112"></a>                             <span class='hs-varid'>connRDBMS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span><span class='hs-layout'>,</span>
<a name="line-1113"></a>                             <span class='hs-varid'>connLimitOffset</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span><span class='hs-layout'>,</span>
<a name="line-1114"></a>                             <span class='hs-varid'>connLogFunc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span><span class='hs-layout'>}</span>
<a name="line-1115"></a>      <span class='hs-varid'>result</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>runReaderT</span> <span class='hs-varop'>$</span> <span class='hs-varid'>runWriterT</span> <span class='hs-varop'>$</span> <span class='hs-varid'>runWriterT</span> <span class='hs-varid'>mig</span>
<a name="line-1116"></a>  <span class='hs-varid'>resp</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>result</span> <span class='hs-varid'>sqlbackend</span>
<a name="line-1117"></a>  <span class='hs-varid'>mapM_</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>putStrLn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>$</span> <span class='hs-varid'>snd</span> <span class='hs-varid'>resp</span>
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