How to pass a variable in Devise sign_up link

How can I pass a variable to my sign_up controller using Devise? I want to add the user开发者_StackOverflow中文版 chosen plan to the database on registration.

Thanks

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You can add this in your routes.rb

match 'register' => redirect('/users/sign_up?plan=pro')

OR

match 'register/:plan' => redirect('/users/sign_up/{%plan}')

And create the matching controllers.

Get more routes info from here: http://guides.rubyonrails.org/routing.html#redirection

Alternatively, this can also be used https://github.com/plataformatec/devise/wiki/How-To:-Customize-routes-to-user-registration-pages