blob: fba0a2bfcc3dc3cce4190dcdf853458967bebccd (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
require "active_record/associations/through_association_scope"
module ActiveRecord
# = Active Record Has One Through Association
module Associations
class HasOneThroughAssociation < HasOneAssociation
include ThroughAssociationScope
def replace(new_value)
create_through_record(new_value)
@target = new_value
end
private
def create_through_record(new_value) #nodoc:
klass = @reflection.through_reflection.klass
current_object = @owner.send(@reflection.through_reflection.name)
if current_object
new_value ? current_object.update_attributes(construct_join_attributes(new_value)) : current_object.destroy
elsif new_value
if @owner.new_record?
self.target = new_value
through_association = @owner.send(:association_instance_get, @reflection.through_reflection.name)
through_association.build(construct_join_attributes(new_value))
else
@owner.send(@reflection.through_reflection.name, klass.create(construct_join_attributes(new_value)))
end
end
end
private
def find_target
with_scope(construct_scope) { @reflection.klass.find(:first) }
end
end
end
end
|