From: "Sven S." <svoop@...>
Date: 2010-03-23T06:36:56+09:00
Subject: Callbacks when deleting self-referenced has_many?

Hi

I've come across a behavior which doesn't seem to be consistent. Let's
assume the following models:

class Client << ActiveRecord::Base
  has_many :resale_clients, :foreign_key => 'reseller_id'
end

class ResaleClient << Client
  belongs_to :client, :foreign_key => 'reseller_id'
  after_save :ack
  def ack
    puts "triggered"
  end
end

Now in the console (assuming two Client records exist in the db):

>> c = Client.first
>> r = ResaleClient.find(2)
>> c.resale_clients << r        # outputs "triggered"
>> c.resale_clients.delete(r)   # does not output "triggered"

Any idea what I'm doing wrong here?

Many thanks!!
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