CODEWITHSUNDEEP
ruby-on-railsrubyenumsmodel
Grigory Bogush
Grigory Bogush

Reputation: 413

Add enum value to a ruby on rails model and make it default for all new model instances

I have an enum like this defined in a model

enum status: { started: "started", passed: "passed", failed: "failed" }

I want to add value draft: "draft" to it

But as far as I understand I have to run a migration somehow for it to be added to the database. How would I do it? Might be a stupid question, please bear with me, thanks.

:edit Thanks for the feedback

I also need to make the newly added enum values the default for all the new models. This will likely need a migration, but how would I generate it?

Upvotes: 0

Views: 1404

Answers (1)

SteveTurczyn
SteveTurczyn

Reputation: 36860

You can add an enum value to the list.

enum status: { started: "started", passed: "passed", failed: "failed", draft: "draft" }

If the enum was an array, you'd have to be sure to add the new value to the end of the array only, otherwise records would have the wrong status.

As for making it the default for new records, I would do this in the model, not the database...

class MyModel < ApplicationRecord
  before_save :initialize_status

  private

  def initialize_status
    self.status ||= 'draft' if new_record?
  end
end

Upvotes: 2

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