Module: ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting::ClassMethods
Do not use. This module is for internal use only.
Relationships & Source Files | |
Defined in: | activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb |
Instance Method Summary
- #column_name_matcher
- #column_name_with_order_matcher
-
#quote_column_name(name)
Quotes column names for use in SQL queries.
-
#quote_table_name(name)
Checks the following cases:
Instance Method Details
#column_name_matcher
[ GitHub ]# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 13
def column_name_matcher / \A ( (?: # "schema_name"."table_name"."column_name"::type_name | function(one or no argument)::type_name ((?:\w\.|"\w"\.){,2}(?:\w|"\w")(?:::\w+)? | \w\((?:|\g<2>)\)(?:::\w)?) ) (?:(?:\sAS)?\s(?:\w|"\w"))? ) (?:\s*,\s*\g<1>)* \z /ix end
#column_name_with_order_matcher
[ GitHub ]# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 28
def column_name_with_order_matcher / \A ( (?: # "schema_name"."table_name"."column_name"::type_name | function(one or no argument)::type_name ((?:\w\.|"\w"\.){,2}(?:\w|"\w")(?:::\w+)? | \w\((?:|\g<2>)\)(?:::\w)?) ) (?:\sCOLLATE\s"\w+")? (?:\sASC|\sDESC)? (?:\sNULLS\s(?:FIRST|LAST))? ) (?:\s*,\s*\g<1>)* \z /ix end
#quote_column_name(name)
Quotes column names for use in SQL queries.
# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 46
def quote_column_name(name) # :nodoc: QUOTED_COLUMN_NAMES[name] ||= PG::Connection.quote_ident(name.to_s).freeze end
#quote_table_name(name)
Checks the following cases:
-
table_name
-
“table.name”
-
schema_name.table_name
-
schema_name.“table.name”
-
“schema.name”.table_name
-
“schema.name”.“table.name”
# File 'activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb', line 58
def quote_table_name(name) # :nodoc: QUOTED_TABLE_NAMES[name] ||= Utils.extract_schema_qualified_name(name.to_s).quoted.freeze end