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#5419 open
Jeremy Davis

after_validation callbacks are no longer executed if validation fails in rails3

Reported by Jeremy Davis | August 20th, 2010 @ 07:07 AM | in 3.0.2

In migrating our application from rails 2.3.x to rails 3 we have found that one of our post validation callbacks is being skipped. The callback is specifically concerned with reverting a changed record if the record was considered invalid.

I am including the callback method here for reference.

  after_validation :revert_status_if_validation_fails

  def revert_status_if_validation_fails
    if self.status_changed? && (self.draft? || !self.errors.empty?)
      self.status = self.status_was

Our expectation is that the after_validation callback will be run after validation regardless of the outcome of validation.

Comments and changes to this ticket

  • Neeraj Singh

    Neeraj Singh August 20th, 2010 @ 02:51 PM

    • Importance changed from “” to “Low”

    ActiveModel callbacks has following line of code.

            def after_validation(*args, &block)
              options = args.extract_options!
              options[:prepend] = true
              options[:if] = Array.wrap(options[:if])
              options[:if] << "!halted && value != false"
              options[:if] << "self.validation_context == :#{options[:on]}" if options[:on]
              set_callback(:validation, :after, *(args << options), &block)

    Notice options[:if] << "!halted && value != false"

    It means that if validation returns false then do not call after_valdiation.

    I have updated the doc

    Whether after_validation should be called irrespective of the result is something that should be discussed with rails core team member.

  • Neeraj Singh

    Neeraj Singh August 20th, 2010 @ 03:22 PM

    • Milestone cleared.
    • State changed from “new” to “open”
    • Assigned user set to “José Valim”
    • Tag set to rails 3, activemodel, patch

    In 2.3.x after_validation callback is called irrespective of the result of valid? . I confirmed it and it was suggested by Jeremy Davis and hence the ticket.

    Attached is patch with test that fixes this issue in rails edge.

  • Jeremy Davis

    Jeremy Davis August 21st, 2010 @ 08:51 AM

    Spectacular, thank you.

  • José Valim

    José Valim August 21st, 2010 @ 12:00 PM

    • State changed from “open” to “committed”

    Ops, this patch was applied! Closing! Thanks Neeraj!

  • Jeremy Kemper

    Jeremy Kemper October 15th, 2010 @ 11:02 PM

    • Milestone set to 3.0.2
  • af001

    af001 May 5th, 2011 @ 02:55 AM


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