Error when using custom model

[wolfsblu]

Hello! I'm having problems trying to use a custom model with rodauth-rails. My setup is as follows:

I have a custom ActiveRecord model called User

class User < ApplicationRecord
    include Rodauth::Rails.model

    enum :status, unverified: 1, verified: 2, closed: 3
end

Then I configured rodauth-rails to use the model above in app/misc/rodauth_main.rb and adapted the migrations accordingly:

class RodauthMain < Rodauth::Rails::Auth
  configure do
    ...
    accounts_table :users 
    rails_account_model User

    login_column :name
    login_uses_email? false

    email_to do 
      account[:email]
    end
end

My only existing RodauthApp (app/misc/rodauth_app,rb) looks as follows:

require "rodauth/model"
class RodauthApp < Rodauth::Rails::App
  configure RodauthMain

  route do |r|
    rodauth.load_memory 
    r.on "auth" do
      r.rodauth
    end
  end
end

The problem is whenever I try to call a protected endpoint in one of my API controllers I get this error:

NoMethodError (undefined method `rodauth' for RodauthApp:Class

        rodauth(name) or fail ArgumentError, "unknown rodauth configuration: #{name.inspect}"
        ^^^^^^^
Did you mean?  rodauth!):

app/models/user.rb:3:in `<class:User>'
app/models/user.rb:2:in `<main>'
app/misc/rodauth_main.rb:13:in `block in <class:RodauthMain>'
app/misc/rodauth_main.rb:2:in `<class:RodauthMain>'
app/misc/rodauth_main.rb:1:in `<main>'
app/misc/rodauth_app.rb:5:in `<class:RodauthApp>'
app/misc/rodauth_app.rb:4:in `<main>'

Does anybody have an idea what could cause this error?

[janko]

Hi, thanks for posting the relevant code. I believe there is a circular dependency issue going on here:

1. when the Rodauth middleware references RodauthApp, it starts loading rodauth_app.rb
2. when rodauth_app.rb references RodauthMain, it starts loading rodauth_main.rb (at that point the Rodauth configuration hasn't yet been registered into the app)
3. when rodauth_main.rb references the User model, it starts loading user.rb
4. when user.rb includes the model mixin, the mixin tries to retrieve the Rodauth configuration in order to read table & column names
5. since no configuration hasn't yet been registered, the code fails

Ideally, you should have received an error that the main configuration (nil) doesn't exist, but you received a NoMethodError, because the Rodauth plugin gets loaded into the Roda app only on first configure (and it didn't manage).

Changing rails_account_model to load the User class at runtime should fix the issue (I will update the docs):

rails_account_model { User }

Also, note that setting rails_account_model is needed only when the model name cannot be inferred from the table name (typically only when using namespaces). Since the table here is :users, it will automatically assume the User model class.

[wolfsblu]

Interesting, that makes sense. Thanks for the detailed and quick response!