The error "You tried to define an enum named "stage" on the model "Challenge", but..." occurs when rails define an enum in the model.

You want to define the following enum in the model:

class Model < ActiveRecord::Base
  enum stage: {member_only: 0, public: 1, demo: 2}

The following error occurs:

You tried to define an enum named "stage" on the model "@@@@", but this will generate a class method "public", which is already defined by Active Record.

Why is that?

ruby-on-rails enum model

2022-09-22 21:12

1 Answers

It's a self-answer.

When you create enum in the model, a method is created under each name of enum as shown below.

class Conversation < ActiveRecord::Base
  enum status: [ :active, :archived ]
end

# # conversation.update! status: 0
conversation.active!
conversation.active? # => true
conversation.status  # => "active"

# # conversation.update! status: 1
conversation.archived!
conversation.archived? # => true
conversation.status    # => "archived"

Source

So if you're already using a different method name, you can't use it in enum.

2022-09-22 21:12

If you have any answers or tips

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