"$ rails generate model Model" produced two models in Rails 5

Question

I ran $ rails g model Model and Rails generated two models as follow:

model.rb:

class Event < ApplicationRecord
end

and

application_record.rb:

class ApplicationRecord < ActiveRecord::Base
  self.abstract_class = true 
end

But I was expecting

model.rb:

class Model < ActiveRecord::Base

end

So I came here to find out why. Then I saw this

Why Rails 5 uses ApplicationRecord instead of ActiveRecord::Base?

which means it was because I was using Rails version 5.

I deleted application_record.rb and adjusted model.rb to what am used to:

class Model < ActiveRecord::Base

end

But then am wondering if this has any implication on any other parts of my application that I don't know of know? This is an application I am building and many more features to still add in future.

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score 2 · Accepted Answer · answered May 19 '17 at 06:45

No, there is no actual need for the ApplicationRecord class in the hierarchy. As you already notice it didn't exist in Rails prior version 5.

But it was added to Rails 5 for a good reason because it helps to improve object orientation and the architecture of the app. It helps to share code in the same way the ApplicationController does for controllers.

I would keep it, it might make things easier for you in the future.

"$ rails generate model Model" produced two models in Rails 5

1 Answers1