module ActiveRecord module Associations class HasOneThroughAssociation < HasManyThroughAssociation def create_through_record(new_value) #nodoc: klass = @reflection.through_reflection.klass current_object = @owner.send(@reflection.through_reflection.name) if current_object klass.destroy(current_object) @owner.clear_association_cache end @owner.send(@reflection.through_reflection.name, klass.send(:create, construct_join_attributes(new_value))) end private def find(*args) super(args.merge(:limit => 1)) end def find_target super.first end def reset_target! @target = nil end end end end