Permalink
Switch branches/tags
Find file
Fetching contributors…
Cannot retrieve contributors at this time
41 lines (33 sloc) 1.06 KB
module ActiveRecord
# = Active Record Has One Through Association
module Associations
class HasOneThroughAssociation < HasOneAssociation #:nodoc:
include ThroughAssociation
def replace(record)
create_through_record(record)
self.target = record
end
private
def create_through_record(record)
ensure_not_nested
through_proxy = owner.association(through_reflection.name)
through_record = through_proxy.load_target
if through_record && !record
through_record.destroy
elsif record
attributes = construct_join_attributes(record)
if through_record && through_record.destroyed?
through_record = through_proxy.tap(&:reload).target
end
if through_record
through_record.update(attributes)
elsif owner.new_record?
through_proxy.build(attributes)
else
through_proxy.create(attributes)
end
end
end
end
end
end