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-rw-r--r--activerecord/lib/active_record/attribute_methods/write.rb3
1 files changed, 1 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb
index 6a21643884..6a54bd2fc2 100644
--- a/activerecord/lib/active_record/attribute_methods/write.rb
+++ b/activerecord/lib/active_record/attribute_methods/write.rb
@@ -35,8 +35,7 @@ module ActiveRecord
name = self.class.attribute_alias(name)
end
- primary_key = self.class.primary_key
- name = primary_key if name == "id" && primary_key
+ name = @primary_key if name == "id" && @primary_key
_write_attribute(name, value)
end