CODEWITHSUNDEEP
ruby-on-rails-3activerecord
user2993456
user2993456

Reputation:

Order of execution for identical Active Record callbacks

I have a model with 5 after_create callbacks. Do these callbacks get executed top to bottom? If not, what is the order of execution?

I know the docs list a precedence for each callback method, but they don't say anything about the order in which multiple callbacks of the same type are executed.

Upvotes: 3

Views: 1268

Answers (1)

trushkevich
trushkevich

Reputation: 2677

Yes, callbacks of the same type are being executed from top to bottom - you can easily check it by yourself without digging into ActiveRecord code or searching for any documentation, for example this way:

class City < ActiveRecord::Base
  after_create -> { log(1) }
  after_create -> { log(2) }
  after_create -> { log(3) }

  private

  def log(s)
    File.open("/tmp/logger.txt", "a") { |f| f.puts s }
  end

end

Now if you create a City and inspect the file, output will always be

1
2
3

Upvotes: 3

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