/usr/lib/ruby/vendor_ruby/sequel/extensions/pg_hstore_ops.rb is in ruby-sequel 3.36.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 | # The pg_hstore_ops extension adds support to Sequel's DSL to make
# it easier to call PostgreSQL hstore functions and operators. The
# most common usage is taking an object that represents an SQL
# expression (such as a :symbol), and calling #hstore on it:
#
# h = :hstore_column.hstore
#
# This creates a Sequel::Postgres::HStoreOp object that can be used
# for easier querying:
#
# h - 'a' # hstore_column - 'a'
# h['a'] # hstore_column -> 'a'
#
# h.concat(:other_hstore_column) # ||
# h.has_key?('a') # ?
# h.contain_all(:array_column) # ?&
# h.contain_any(:array_column) # ?|
# h.contains(:other_hstore_column) # @>
# h.contained_by(:other_hstore_column) # <@
#
# h.defined # defined(hstore_column)
# h.delete('a') # delete(hstore_column, 'a')
# h.each # each(hstore_column)
# h.keys # akeys(hstore_column)
# h.populate(:a) # populate_record(a, hstore_column)
# h.record_set(:a) # (a #= hstore_column)
# h.skeys # skeys(hstore_column)
# h.slice(:a) # slice(hstore_column, a)
# h.svals # svals(hstore_column)
# h.to_array # hstore_to_array(hstore_column)
# h.to_matrix # hstore_to_matrix(hstore_column)
# h.values # avals(hstore_column)
#
# See the PostgreSQL hstore function and operator documentation for more
# details on what these functions and operators do.
#
# If you are also using the pg_hstore extension, you should load it before
# loading this extension. Doing so will allow you to use HStore#op to get
# an HStoreOp, allowing you to perform hstore operations on hstore literals.
module Sequel
module Postgres
# The HStoreOp class is a simple container for a single object that
# defines methods that yield Sequel expression objects representing
# PostgreSQL hstore operators and functions.
#
# In the method documentation examples, assume that:
#
# hstore_op = :hstore.hstore
class HStoreOp < Sequel::SQL::Wrapper
CONCAT = ["(".freeze, " || ".freeze, ")".freeze].freeze
CONTAIN_ALL = ["(".freeze, " ?& ".freeze, ")".freeze].freeze
CONTAIN_ANY = ["(".freeze, " ?| ".freeze, ")".freeze].freeze
CONTAINS = ["(".freeze, " @> ".freeze, ")".freeze].freeze
CONTAINED_BY = ["(".freeze, " <@ ".freeze, ")".freeze].freeze
HAS_KEY = ["(".freeze, " ? ".freeze, ")".freeze].freeze
LOOKUP = ["(".freeze, " -> ".freeze, ")".freeze].freeze
RECORD_SET = ["(".freeze, " #= ".freeze, ")".freeze].freeze
# Delete entries from an hstore using the subtraction operator:
#
# hstore_op - 'a' # (hstore - 'a')
def -(other)
HStoreOp.new(super)
end
# Lookup the value for the given key in an hstore:
#
# hstore_op['a'] # (hstore -> 'a')
def [](key)
Sequel::SQL::StringExpression.new(:NOOP, Sequel::SQL::PlaceholderLiteralString.new(LOOKUP, [value, key]))
end
# Check if the receiver contains all of the keys in the given array:
#
# hstore_op.contain_all(:a) # (hstore ?& a)
def contain_all(other)
bool_op(CONTAIN_ALL, other)
end
# Check if the receiver contains any of the keys in the given array:
#
# hstore_op.contain_any(:a) # (hstore ?| a)
def contain_any(other)
bool_op(CONTAIN_ANY, other)
end
# Check if the receiver contains all entries in the other hstore:
#
# hstore_op.contains(:h) # (hstore @> h)
def contains(other)
bool_op(CONTAINS, other)
end
# Check if the other hstore contains all entries in the receiver:
#
# hstore_op.contained_by(:h) # (hstore <@ h)
def contained_by(other)
bool_op(CONTAINED_BY, other)
end
# Check if the receiver contains a non-NULL value for the given key:
#
# hstore_op.defined('a') # defined(hstore, 'a')
def defined(key)
Sequel::SQL::BooleanExpression.new(:NOOP, function(:defined, key))
end
# Delete the matching entries from the receiver:
#
# hstore_op.delete('a') # delete(hstore, 'a')
def delete(key)
HStoreOp.new(function(:delete, key))
end
# Transform the receiver into a set of keys and values:
#
# hstore_op.each # each(hstore)
def each
function(:each)
end
# Check if the receiver contains the given key:
#
# hstore_op.has_key?('a') # (hstore ? 'a')
def has_key?(key)
bool_op(HAS_KEY, key)
end
alias include? has_key?
alias key? has_key?
alias member? has_key?
alias exist? has_key?
# Return the receiver.
def hstore
self
end
# Return the keys as a PostgreSQL array:
#
# hstore_op.keys # akeys(hstore)
def keys
function(:akeys)
end
alias akeys keys
# Merge a given hstore into the receiver:
#
# hstore_op.merge(:a) # (hstore || a)
def merge(other)
HStoreOp.new(Sequel::SQL::PlaceholderLiteralString.new(CONCAT, [self, other]))
end
alias concat merge
# Create a new record populated with entries from the receiver:
#
# hstore_op.populate(:a) # populate_record(a, hstore)
def populate(record)
SQL::Function.new(:populate_record, record, self)
end
# Update the values in a record using entries in the receiver:
#
# hstore_op.record_set(:a) # (a #= hstore)
def record_set(record)
Sequel::SQL::PlaceholderLiteralString.new(RECORD_SET, [record, value])
end
# Return the keys as a PostgreSQL set:
#
# hstore_op.skeys # skeys(hstore)
def skeys
function(:skeys)
end
# Return an hstore with only the keys in the given array:
#
# hstore_op.slice(:a) # slice(hstore, a)
def slice(keys)
HStoreOp.new(function(:slice, keys))
end
# Return the values as a PostgreSQL set:
#
# hstore_op.svals # svals(hstore)
def svals
function(:svals)
end
# Return a flattened array of the receiver with alternating
# keys and values:
#
# hstore_op.to_array # hstore_to_array(hstore)
def to_array
function(:hstore_to_array)
end
# Return a nested array of the receiver, with arrays of
# 2 element (key/value) arrays:
#
# hstore_op.to_matrix # hstore_to_matrix(hstore)
def to_matrix
function(:hstore_to_matrix)
end
# Return the values as a PostgreSQL array:
#
# hstore_op.values # avals(hstore)
def values
function(:avals)
end
alias avals values
private
# Return a placeholder literal with the given str and args, wrapped
# in a boolean expression, used by operators that return booleans.
def bool_op(str, other)
Sequel::SQL::BooleanExpression.new(:NOOP, Sequel::SQL::PlaceholderLiteralString.new(str, [value, other]))
end
# Return a function with the given name, and the receiver as the first
# argument, with any additional arguments given.
def function(name, *args)
SQL::Function.new(name, self, *args)
end
end
module HStoreOpMethods
# Wrap the receiver in an HStoreOp so you can easily use the PostgreSQL
# hstore functions and operators with it.
def hstore
HStoreOp.new(self)
end
end
if defined?(HStore)
class HStore
# Wrap the receiver in an HStoreOp so you can easily use the PostgreSQL
# hstore functions and operators with it.
def op
HStoreOp.new(self)
end
end
end
end
class SQL::GenericExpression
include Sequel::Postgres::HStoreOpMethods
end
class LiteralString
include Sequel::Postgres::HStoreOpMethods
end
end
class Symbol
include Sequel::Postgres::HStoreOpMethods
end
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