aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/lib
diff options
context:
space:
mode:
Diffstat (limited to 'activerecord/lib')
-rw-r--r--activerecord/lib/active_record/associations/has_many_through_association.rb5
1 files changed, 4 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb
index 36fc381343..7ddb96db13 100644
--- a/activerecord/lib/active_record/associations/has_many_through_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_through_association.rb
@@ -86,7 +86,10 @@ module ActiveRecord
end
def save_through_record(record)
- build_through_record(record).save!
+ association = build_through_record(record)
+ if association.changed?
+ association.save!
+ end
ensure
@through_records.delete(record.object_id)
end