discourse/app/models/concerns/has_destroyed_web_hook.rb

module HasDestroyedWebHook
  extend ActiveSupport::Concern

  included do
    around_destroy :enqueue_destroyed_web_hook
  end

  def enqueue_destroyed_web_hook
    type = self.class.name.underscore.to_sym

    if WebHook.active_web_hooks(type).exists?
      payload = WebHook.generate_payload(type, self)
      yield
      WebHook.enqueue_hooks(type, "#{type}_destroyed".to_sym,
        id: id,
        payload: payload
      )
    else
      yield
    end
  end
end