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Contents
module ActiveData
module ActiveRecord
module Associations
READER = lambda do |ref, object|
value = object.read_attribute(ref.name)
if value.present?
value.is_a?(String) ? JSON.parse(value) : value
end
end
WRITER = lambda do |ref, object, value|
object.send(:write_attribute, ref.name, value ? value.to_json : nil)
end
module Reflections
class EmbedsOne < ActiveData::Model::Associations::Reflections::EmbedsOne
def is_a?(klass)
super || klass == ::ActiveRecord::Reflection::AssociationReflection
end
end
class EmbedsMany < ActiveData::Model::Associations::Reflections::EmbedsMany
def is_a?(klass)
super || klass == ::ActiveRecord::Reflection::AssociationReflection
end
end
end
extend ActiveSupport::Concern
included do
{embeds_many: Reflections::EmbedsMany, embeds_one: Reflections::EmbedsOne}.each do |(method, reflection_class)|
define_singleton_method method do |name, options = {}, &block|
reflection = reflection_class.build(self, self, name,
options.reverse_merge(read: READER, write: WRITER),
&block)
if ::ActiveRecord::Reflection.respond_to? :add_reflection
::ActiveRecord::Reflection.add_reflection self, reflection.name, reflection
else
self.reflections = reflections.merge(reflection.name => reflection)
end
callback_name = :"update_#{reflection.name}_association"
before_save callback_name
class_eval <<-METHOD, __FILE__, __LINE__ + 1
def #{callback_name}
association(:#{reflection.name}).apply_changes!
end
METHOD
end
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems