Destroy on blank nested attribute

Question

I would like to destroy a nested model if its attributes are blanked out in the form for the parent model - however, it appears that the ActiveRecord::Callbacks

Answer 1

Similar to Steve Kenworthy's answer, no local variables.

 accepts_nested_attributes_for :tour_dates, :reject_if => :reject_tour, :allow_destroy => true

 def reject_tour(attributes)
    if attributes[:when].blank? || attributes[:where].blank?
      if attributes[:id].present?
        attributes.merge!({:_destroy => 1}) && false
      else
        true
      end
    end
  end