SQL callsite detection doesn't work for views/controllers in gems

[fintanf]

The callsite code in AppNotifications looks for the first line matching Rails.root in the caller array. This works great for all application-local code and templates, but when the AR query originates in a gem it's entirely passed over and you end up with #{Rails.root}/bin/rails as the callsite. Right now I'm seeing this behaviour when working on a spree app, but I assume there are other gems out there providing AR-interacting views and controllers that would also have a problem with this.

There may not be a perfect regexp(s) that can deal with this, but allowing a custom set of regexps or a block that is used for the select on the caller array is desirable. This would at least allow some customisation for these use cases.