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-rw-r--r--activerecord/lib/active_record/associations/belongs_to_association.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations/belongs_to_association.rb b/activerecord/lib/active_record/associations/belongs_to_association.rb
index b438620c8f..c9abfe36e8 100644
--- a/activerecord/lib/active_record/associations/belongs_to_association.rb
+++ b/activerecord/lib/active_record/associations/belongs_to_association.rb
@@ -42,6 +42,14 @@ module ActiveRecord
@updated
end
+ def stale_target?
+ if @target && @target.persisted?
+ @target.send(@reflection.association_primary_key).to_i != @owner.send(@reflection.primary_key_name).to_i
+ else
+ false
+ end
+ end
+
private
def find_target
find_method = if @reflection.options[:primary_key]