Prevent infinite loop when updating attributes within after_commit, :on => :create

Question

I create an infinite callback loop when I need to update an attribute during an after_commit, :on => :create. It only occurs if I need to update an attribute

Answer 1

You can use the method update_column that will skip all callbacks of your model:

self.update_column(:filename, filename)

Or you could use the method update_all, wich follows the same behavior

self.class.where('id = ?', self.id).update_all(:filename => filename)

And last but not least, my personal favorite:

self.filename = filename
self.send(:update_without_callbacks)

This one makes it pretty clear that all callbacks are been ignored, what is very helpful

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Also, as a different alternative, you coud use after_create instead of after_commit if you want to run the generate method only when a new record is saved