diff options
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb')
-rw-r--r-- | activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb new file mode 100644 index 0000000000..4e7d472d97 --- /dev/null +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb @@ -0,0 +1,50 @@ +module ActiveRecord + module ConnectionAdapters + module PostgreSQL + module OID # :nodoc: + class Array < Type::Value + attr_reader :subtype + delegate :type, to: :subtype + + def initialize(subtype) + @subtype = subtype + end + + def type_cast_from_database(value) + if value.is_a?(::String) + type_cast_array(parse_pg_array(value), :type_cast_from_database) + else + super + end + end + + def type_cast_from_user(value) + type_cast_array(value, :type_cast_from_user) + end + + # Loads pg_array_parser if available. String parsing can be + # performed quicker by a native extension, which will not create + # a large amount of Ruby objects that will need to be garbage + # collected. pg_array_parser has a C and Java extension + begin + require 'pg_array_parser' + include PgArrayParser + rescue LoadError + require 'active_record/connection_adapters/postgresql/array_parser' + include PostgreSQL::ArrayParser + end + + private + + def type_cast_array(value, method) + if value.is_a?(::Array) + value.map { |item| type_cast_array(item, method) } + else + @subtype.public_send(method, value) + end + end + end + end + end + end +end |