Can I pass default value to rails generate migration?

ruby-on-rails ruby-on-rails-3 rails-migrations
Leantraxxx picture Leantraxxx · Jul 4, 2014 · Viewed 28.9k times · Source

I want to know if I can pass a default value to the rails g migration command. Something like:

 $ rails generate migration add_disabled_to_users disabled:boolean:false #where false is default value for disabled attribute

in order to generate:

class AddDisabledToUsers < ActiveRecord::Migration
  def change
    add_column :users, :disabled, :boolean, default: false
  end
end

Answer

Benj picture Benj · Jul 4, 2014

You can't: https://guides.rubyonrails.org/active_record_migrations.html#column-modifiers

null and default cannot be specified via command line.

The only solution is to modify the migration after it's generated. It was the case in Rails 3, still the case in Rails 6

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