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-rw-r--r--activerecord/lib/active_record/associations/has_one_through_association.rb46
1 files changed, 21 insertions, 25 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
index fba0a2bfcc..fdf8ae1453 100644
--- a/activerecord/lib/active_record/associations/has_one_through_association.rb
+++ b/activerecord/lib/active_record/associations/has_one_through_association.rb
@@ -1,40 +1,36 @@
-require "active_record/associations/through_association_scope"
-
module ActiveRecord
# = Active Record Has One Through Association
module Associations
- class HasOneThroughAssociation < HasOneAssociation
- include ThroughAssociationScope
+ class HasOneThroughAssociation < HasOneAssociation #:nodoc:
+ include ThroughAssociation
- def replace(new_value)
- create_through_record(new_value)
- @target = new_value
+ def replace(record)
+ create_through_record(record)
+ self.target = record
end
private
- def create_through_record(new_value) #nodoc:
- klass = @reflection.through_reflection.klass
+ def create_through_record(record)
+ ensure_not_nested
+
+ through_proxy = owner.association(through_reflection.name)
+ through_record = through_proxy.send(:load_target)
- current_object = @owner.send(@reflection.through_reflection.name)
+ if through_record && !record
+ through_record.destroy
+ elsif record
+ attributes = construct_join_attributes(record)
- 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)))
+ if through_record
+ through_record.update_attributes(attributes)
+ elsif owner.new_record?
+ through_proxy.build(attributes)
+ else
+ through_proxy.create(attributes)
+ end
end
end
- end
-
- private
- def find_target
- with_scope(construct_scope) { @reflection.klass.find(:first) }
- end
end
end
end