diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/has_one_through_association.rb')
-rw-r--r-- | activerecord/lib/active_record/associations/has_one_through_association.rb | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations/has_one_through_association.rb b/activerecord/lib/active_record/associations/has_one_through_association.rb new file mode 100644 index 0000000000..ecf9d8208d --- /dev/null +++ b/activerecord/lib/active_record/associations/has_one_through_association.rb @@ -0,0 +1,28 @@ +module ActiveRecord + module Associations + class HasOneThroughAssociation < ActiveRecord::Associations::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 + end + end +end |