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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/Database-HDBC-Session.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">HDBC-session-0.1.1.0: Bracketed connection for HDBC</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Copyright</th><td>2013-2016 Kei Hibino</td></tr><tr><th>License</th><td>BSD3</td></tr><tr><th>Maintainer</th><td>ex8k.hibino@gmail.com</td></tr><tr><th>Stability</th><td>experimental</td></tr><tr><th>Portability</th><td>unknown</td></tr><tr><th>Safe Haskell</th><td>None</td></tr><tr><th>Language</th><td>Haskell2010</td></tr></table><p class="caption">Database.HDBC.Session</p></div><div id="table-of-contents"><p class="caption">Contents</p><ul><li><a href="#g:1">Bracketed session</a></li><li><a href="#g:2">Show errors</a></li></ul></div><div id="description"><p class="caption">Description</p><div class="doc"><p>This module provides a base bracketed function
to call close correctly against opend DB connection.</p></div></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><a href="#v:withConnectionCommit">withConnectionCommit</a> :: <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Types.html#t:IConnection">IConnection</a> conn => <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> conn -> (conn -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a) -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a</li><li class="src short"><a href="#v:withConnectionIO">withConnectionIO</a> :: <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Types.html#t:IConnection">IConnection</a> conn => <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> conn -> (conn -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a) -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a</li><li class="src short"><a href="#v:withConnectionIO-39-">withConnectionIO'</a> :: <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Types.html#t:IConnection">IConnection</a> conn => <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> conn -> (conn -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a) -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a</li><li class="src short"><a href="#v:withConnection">withConnection</a> :: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Control-Monad.html#t:Monad">Monad</a> m, <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Types.html#t:IConnection">IConnection</a> conn) => (<span class="keyword">forall</span> c. m c -> (c -> m ()) -> (c -> m a) -> m a) -> (<span class="keyword">forall</span> b. <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> b -> m b) -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> conn -> (conn -> m a) -> m a</li><li class="src short"><a href="#v:showSqlError">showSqlError</a> :: <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Statement.html#t:SqlError">SqlError</a> -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-String.html#t:String">String</a></li><li class="src short"><a href="#v:handleSqlError-39-">handleSqlError'</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a</li></ul></div><div id="interface"><h1 id="g:1">Bracketed session</h1><div class="doc"><p>Bracket function implementation is provided by several packages,
so this package provides base implementation which requires
bracket function and corresponding lift function.</p></div><div class="top"><p class="src"><a id="v:withConnectionCommit" class="def">withConnectionCommit</a> <a href="src/Database-HDBC-Session.html#withConnectionCommit" class="link">Source</a> <a href="#v:withConnectionCommit" class="selflink">#</a></p><div class="subs arguments"><p class="caption">Arguments</p><table><tr><td class="src">:: <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Types.html#t:IConnection">IConnection</a> conn</td><td class="doc empty"> </td></tr><tr><td class="src">=> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> conn</td><td class="doc"><p>Connect action</p></td></tr><tr><td class="src">-> (conn -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a)</td><td class="doc"><p>Transaction body</p></td></tr><tr><td class="src">-> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a</td><td class="doc"><p>Result transaction action</p></td></tr></table></div><div class="doc"><p>Same as <code><a href="Database-HDBC-Session.html#v:withConnectionIO">withConnectionIO</a></code> other than issuing commit at the end of transaction body.
In other words, the transaction with no exception is committed.
Handy defintion for simple transactions.</p></div></div><div class="top"><p class="src"><a id="v:withConnectionIO" class="def">withConnectionIO</a> <a href="src/Database-HDBC-Session.html#withConnectionIO" class="link">Source</a> <a href="#v:withConnectionIO" class="selflink">#</a></p><div class="subs arguments"><p class="caption">Arguments</p><table><tr><td class="src">:: <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Types.html#t:IConnection">IConnection</a> conn</td><td class="doc empty"> </td></tr><tr><td class="src">=> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> conn</td><td class="doc"><p>Connect action</p></td></tr><tr><td class="src">-> (conn -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a)</td><td class="doc"><p>Transaction body</p></td></tr><tr><td class="src">-> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a</td><td class="doc"><p>Result transaction action</p></td></tr></table></div><div class="doc"><p>Run a transaction on a HDBC <code><a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Types.html#t:IConnection">IConnection</a></code> and close the connection.
Simple <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a></code> version.</p></div></div><div class="top"><p class="src"><a id="v:withConnectionIO-39-" class="def">withConnectionIO'</a> <a href="src/Database-HDBC-Session.html#withConnectionIO%27" class="link">Source</a> <a href="#v:withConnectionIO-39-" class="selflink">#</a></p><div class="subs arguments"><p class="caption">Arguments</p><table><tr><td class="src">:: <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Types.html#t:IConnection">IConnection</a> conn</td><td class="doc empty"> </td></tr><tr><td class="src">=> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> conn</td><td class="doc"><p>Connect action</p></td></tr><tr><td class="src">-> (conn -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a)</td><td class="doc"><p>Transaction body</p></td></tr><tr><td class="src">-> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a</td><td class="doc"><p>Result transaction action</p></td></tr></table></div><div class="doc"><p>Same as <code><a href="Database-HDBC-Session.html#v:withConnectionIO">withConnectionIO</a></code> other than wrapping transaction body in <code><a href="Database-HDBC-Session.html#v:handleSqlError-39-">handleSqlError'</a></code>.</p></div></div><div class="top"><p class="src"><a id="v:withConnection" class="def">withConnection</a> <a href="src/Database-HDBC-Session.html#withConnection" class="link">Source</a> <a href="#v:withConnection" class="selflink">#</a></p><div class="subs arguments"><p class="caption">Arguments</p><table><tr><td class="src">:: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Control-Monad.html#t:Monad">Monad</a> m, <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Types.html#t:IConnection">IConnection</a> conn)</td><td class="doc empty"> </td></tr><tr><td class="src">=> (<span class="keyword">forall</span> c. m c -> (c -> m ()) -> (c -> m a) -> m a)</td><td class="doc"><p>bracket</p></td></tr><tr><td class="src">-> (<span class="keyword">forall</span> b. <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> b -> m b)</td><td class="doc"><p>lift</p></td></tr><tr><td class="src">-> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> conn</td><td class="doc"><p>Connect action</p></td></tr><tr><td class="src">-> (conn -> m a)</td><td class="doc"><p>Transaction body</p></td></tr><tr><td class="src">-> m a</td><td class="doc empty"> </td></tr></table></div><div class="doc"><p>Run a transaction on a HDBC IConnection and close the connection.</p></div></div><h1 id="g:2">Show errors</h1><div class="doc"><p>Functions to show <code><a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Statement.html#t:SqlError">SqlError</a></code> type not to show <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-String.html#t:String">String</a></code> fields.</p></div><div class="top"><p class="src"><a id="v:showSqlError" class="def">showSqlError</a> :: <a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Statement.html#t:SqlError">SqlError</a> -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-String.html#t:String">String</a> <a href="src/Database-HDBC-Session.html#showSqlError" class="link">Source</a> <a href="#v:showSqlError" class="selflink">#</a></p><div class="doc"><p>show <code><a href="file:///usr/share/doc/libghc-hdbc-doc/html/Database-HDBC-Statement.html#t:SqlError">SqlError</a></code> not to show <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-String.html#t:String">String</a></code> fields.</p></div></div><div class="top"><p class="src"><a id="v:handleSqlError-39-" class="def">handleSqlError'</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/System-IO.html#t:IO">IO</a> a <a href="src/Database-HDBC-Session.html#handleSqlError%27" class="link">Source</a> <a href="#v:handleSqlError-39-" class="selflink">#</a></p><div class="doc"><p>Like <code>handleSqlError</code>, but not to show <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.9.0.0/Data-String.html#t:String">String</a></code> fields of SqlError.</p></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.17.2</p></div></body></html>
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