CODEWITHSUNDEEP
ruby-on-railsactiverecord
Voldemar Duletskiy
Voldemar Duletskiy

Reputation: 981

ActiveRecord ignores before_create hook from concern

I have model of subscription to news topic, witch has secret field for subscription/unsubscription:

class TopicSubscription < ActiveRecord::Base
  include WithSecret
  ...
end

here is code of module, which generates subscription secret

module WithSecret
  extend ActiveSupport::Concern
  included do
    attr_accessible :secret
    validates_presence_of :secret    
    before_create :gen_secret
  end

  def gen_secret
    begin
      o =  [('a'..'z'),('0'..'9')].map{|i| i.to_a}.flatten
      code  =  (0...128).map{ o[rand(o.length)] }.join
    end while self.class.send(:"find_by",{secret: code})
    self.send("secret=",code)
  end
end

problem if that gen_secret hook never fires and I always get validation error. What is purpose of such strange behavior?

Upvotes: 0

Views: 625

Answers (1)

Logan Serman
Logan Serman

Reputation: 29860

before_create fires after validation. Use before_validation :gen_secret, on: :create instead.

Upvotes: 2

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