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authorJames Coleman <jtc331@gmail.com>2016-02-05 10:16:15 -0500
committerJames Coleman <jtc331@gmail.com>2016-08-26 11:40:38 -0400
commita94fe2971b24d2a7827e205e7898e1b22771ed72 (patch)
tree9a6ff88242201d4fb55e29ae97146a921204bf25 /activerecord/lib
parentf394f3ba763adbd073685a4a3f53b2a3ad71381a (diff)
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Don't unnecessarily load a belongs_to when saving.
Previously, if the the association was previously loaded and then the foreign key changed by itself, a #save call would trigger a load of the new associated record during autosave. This is unnecessary and the autosave code (in that case) didn't use the loaded record anyways.
Diffstat (limited to 'activerecord/lib')
-rw-r--r--activerecord/lib/active_record/autosave_association.rb4
1 files changed, 3 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb
index 6e6620aad5..db84876b0a 100644
--- a/activerecord/lib/active_record/autosave_association.rb
+++ b/activerecord/lib/active_record/autosave_association.rb
@@ -457,7 +457,9 @@ module ActiveRecord
# In addition, it will destroy the association if it was marked for destruction.
def save_belongs_to_association(reflection)
association = association_instance_get(reflection.name)
- record = association && association.load_target
+ return unless association && association.loaded? && !association.stale_target?
+
+ record = association.load_target
if record && !record.destroyed?
autosave = reflection.options[:autosave]