Devise with rails 4

It is during a course of programming social network, with an older version of Rails, that I noted it was missing some steps. Before starting the install of devise, if you want to make your forms beautiful, (even authentication’s forms) it is better to install “simple_form”. Indeed, I did it after and it was not working.

=> Here the very simple documentation of simple_form:

=> Once simple_form is installed, I can start my “devise” setup:

=> Then I run :

$ bundle install

$ rails generate devise:install

=> Then I have to follow the instructions in the terminal.

=> Don’t forget to add “before_action :authenticate_user!” in controllers. In my project, I did it in “application_controllers.rb”, because all features can’t be accessible without authentication.

=> Now I can generate the model “User” (but it could be another word it depends on your project): $ rails generate devise User

=> Then I restart the server and find the registration page to the url : “/users/sign_up .

=> Now I have a model “user” in my project, I would like to add some fields such as : “last_name”, “first_name”, “profile_name” etc… :

$ rails g migration AddFieldsToUsers last_name: string first_name: string profile_name: string

$ rake db:migrate

=> Once the fields are added, I have to add them in my authentication’s forms, for instance, my new session’s form :

=> Now I can test my application, but there is a mistake: the new user that I have just created, is “nil” for the last_name, first_name, and profile_name. The reason is because of missing “strong parameters” in controller’s file, so I write this code in my application_controller.rb :

=> Now devise is intalled correctly, I can add a new user :

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