[Feature idea] Allow custom dependent callbacks on has_many Associations

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[Feature idea] Allow custom dependent callbacks on has_many Associations

Bálint Erdős
I was thinking of implementing a way to use custom method names for dependent has_many Associations.
This way I wouldn't have to use workarounds like rewriting destroy methods, or stuffing code handling other models into methods for before_destroy callbacks.

class Thing < ApplicationRecord
  belongs_to :owner, class_name: 'User'
  def reset_owner
    # set owner to another user based on settings
  end
end

class User < ApplicationRecord
  has_many :things, dependent: :reset_owner
end

I don't think other kinds of Associations would need to support this.

What do you think?

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