<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Work on this issue](https://contributors.gitlab.com/manage-issue?action=work&projectId=278964&issueIid=382240) - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=382240) </details> <!--IssueSummary end--> ## Summary As described in comment `app/models/concerns/bulk_insert_safe.rb:19`: ``` # class MyRecord < ApplicationRecord # include BulkInsertSafe # must be included _last_ i.e. after any other concerns # end ``` to make this mixin works without issues we need to put it in the end of the concerns list. But why do we need to put such comment each time if we could write the cop that could keep an eye on it instead. ## Involved components `app/models/**/*.rb` that has `include BulkInsertSafe` inside. Currently it's a 10 models that will be covered by this cop. Some of them doesn't have this mixin in appropriate place. Hopefully it won't be a problem to just move it down the list.