module ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting
Public Instance Methods
escape_bytea(value)
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Escapes binary strings for bytea input to the database.
# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 6 def escape_bytea(value) @connection.escape_bytea(value) if value end
quote_table_name(name)
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Checks the following cases:
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table_name
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“table.name”
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schema_name.table_name
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schema_name.“table.name”
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“schema.name”.table_name
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“schema.name”.“table.name”
# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 30 def quote_table_name(name) Utils.extract_schema_qualified_name(name.to_s).quoted end
quote_table_name_for_assignment(table, attr)
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# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 34 def quote_table_name_for_assignment(table, attr) quote_column_name(attr) end
unescape_bytea(value)
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Unescapes bytea output from a database to the binary string it represents. NOTE: This is NOT an inverse of #escape_bytea! This is only to be used on escaped binary output from database drive.
# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 13 def unescape_bytea(value) @connection.unescape_bytea(value) if value end
Private Instance Methods
_quote(value)
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Calls superclass method
# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 69 def _quote(value) case value when Type::Binary::Data "'#{escape_bytea(value.to_s)}'" when OID::Xml::Data "xml '#{quote_string(value.to_s)}'" when OID::Bit::Data if value.binary? "B'#{value}'" elsif value.hex? "X'#{value}'" end when Float if value.infinite? || value.nan? "'#{value}'" else super end else super end end
_type_cast(value)
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Calls superclass method
# File lib/active_record/connection_adapters/postgresql/quoting.rb, line 92 def _type_cast(value) case value when Type::Binary::Data # Return a bind param hash with format as binary. # See http://deveiate.org/code/pg/PGconn.html#method-i-exec_prepared-doc # for more information { value: value.to_s, format: 1 } when OID::Xml::Data, OID::Bit::Data value.to_s else super end end