diff options
Diffstat (limited to 'activerecord/lib/active_record/attribute_methods/serialization.rb')
| -rw-r--r-- | activerecord/lib/active_record/attribute_methods/serialization.rb | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/serialization.rb b/activerecord/lib/active_record/attribute_methods/serialization.rb index 734d94865a..e5ec5ddca5 100644 --- a/activerecord/lib/active_record/attribute_methods/serialization.rb +++ b/activerecord/lib/active_record/attribute_methods/serialization.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/string/filters' + module ActiveRecord module AttributeMethods module Serialization @@ -8,11 +10,8 @@ module ActiveRecord # object, and retrieved as the same object, then specify the name of that # attribute using this method and it will be handled automatically. The # serialization is done through YAML. If +class_name+ is specified, the - # serialized object must be of that class on retrieval or - # <tt>SerializationTypeMismatch</tt> will be raised. - # - # A notable side effect of serialized attributes is that the model will - # be updated on every save, even if it is not dirty. + # serialized object must be of that class on assignment and retrieval. + # Otherwise <tt>SerializationTypeMismatch</tt> will be raised. # # ==== Parameters # @@ -37,7 +36,12 @@ module ActiveRecord # serialize :preferences, Hash # end def serialize(attr_name, class_name_or_coder = Object) - coder = if [:load, :dump].all? { |x| class_name_or_coder.respond_to?(x) } + # When ::JSON is used, force it to go through the Active Support JSON encoder + # to ensure special objects (e.g. Active Record models) are dumped correctly + # using the #as_json hook. + coder = if class_name_or_coder == ::JSON + Coders::JSON + elsif [:load, :dump].all? { |x| class_name_or_coder.respond_to?(x) } class_name_or_coder else Coders::YAMLColumn.new(class_name_or_coder) @@ -49,10 +53,11 @@ module ActiveRecord end def serialized_attributes - ActiveSupport::Deprecation.warn(<<-WARNING.strip_heredoc) + ActiveSupport::Deprecation.warn(<<-MSG.squish) `serialized_attributes` is deprecated without replacement, and will be removed in Rails 5.0. - WARNING + MSG + @serialized_attributes ||= Hash[ columns.select { |t| t.cast_type.is_a?(Type::Serialized) }.map { |c| [c.name, c.cast_type.coder] |