diff options
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb')
-rw-r--r-- | activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb index 57b20477df..be4525c94f 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb @@ -10,16 +10,48 @@ module ActiveRecord end def type_cast_from_database(value) - ConnectionAdapters::PostgreSQLColumn.string_to_hstore(value) + if value.is_a?(::String) + ::Hash[value.scan(HstorePair).map { |k, v| + v = v.upcase == 'NULL' ? nil : v.gsub(/\A"(.*)"\Z/m,'\1').gsub(/\\(.)/, '\1') + k = k.gsub(/\A"(.*)"\Z/m,'\1').gsub(/\\(.)/, '\1') + [k, v] + }] + else + value + end end def type_cast_for_database(value) - ConnectionAdapters::PostgreSQLColumn.hstore_to_string(value) + if value.is_a?(::Hash) + value.map { |k, v| "#{escape_hstore(k)}=>#{escape_hstore(v)}" }.join(', ') + else + value + end end def accessor ActiveRecord::Store::StringKeyedHashAccessor end + + private + + HstorePair = begin + quoted_string = /"[^"\\]*(?:\\.[^"\\]*)*"/ + unquoted_string = /(?:\\.|[^\s,])[^\s=,\\]*(?:\\.[^\s=,\\]*|=[^,>])*/ + /(#{quoted_string}|#{unquoted_string})\s*=>\s*(#{quoted_string}|#{unquoted_string})/ + end + + def escape_hstore(value) + if value.nil? + 'NULL' + else + if value == "" + '""' + else + '"%s"' % value.to_s.gsub(/(["\\])/, '\\\\\1') + end + end + end end end end |