Rails: Devise: User

Question

Environment: Rails 3.2.3 with Devise

I would like to add a registration code to the registration form. The registration code is NOT in the users table. There's a separate registration_codes for that. The reason it's in the registration form, is that I would like to compare the code entered by the user filling out the registration form to what's in the registration codes table, and produce a value that will go into the users table.

I am getting an error message:

undefined method `registration_code' for #<User:0x007f91b57b7890>

and it's pointing to the code that displays the registration_code text box in views/registrations/new.html.erb

How do I get around the fact that registration_code is not part of the users table? The form was working fine, until I added the registration_code field to the form.

Answer 1

I assume you're using a form builder to create the form (a form_for block). In this case, you're probably using something like <%= f.text_field :registration_code %> to display the text field, but Rails can't find registration_code on the User model, because, like you said, it's not there.

Instead, try using <%= text_field_tag :registration_code %>. You can access this from your controller through params[:registration_code]

Answer 2

I would create a method in your User model that handles your registration code logic:

def registration_code=(code)
  # Check registation_codes table and produce a value that will go into the users table
end

Submitting a form with this new field should now call this method with the submitted value