After successfully creating validations, relationships, and using scopes in Rails in the previous article, we will next create authentication functionality using Devise.
Daftar Isi
Design? For what ?
Devise is a Rails gem that makes it easy to handle authentication issues. Currency has the following advantages.
- Rack-based
- Complete with model, view and controller
- Allows an application to have multiple authentication models
- Made with modularity, making this gem easy to use using only the necessary features/modules.
Precious stones? What is a gem? In Rails there is a configuration file used to list the gems used. This gem is like a library usually found on RubyGems.
How to add design gems to rails
To install this device, you can open it Save files in the application file. For example, I will use devices for applications homework_management.
| Place the Gemfile on the project |
Add the following script to the Gemfile.
gem 'devise'
and on the terminal move to the project folder in use and run the following command.
bundle install
Definition of the Gem system on the project
Run the following command in terminal
rails generate devise:install
This command will generate a configuration file in the folder config/initializers/devise.rb.
Device Configuration
Make sure the configuration for default URL options in the environment files has been created. To set default URL options, open the environment file in the folder config/environments/development.rb.
config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
end
before keywords END.
just above
<%= yield %>
Configuring the user model
Next we will create a user model, in which this model works to store user data. To create this user model, it will be integrated into the device. The way to do this is to run the following command in the terminal.
rails g devise user
By running this command it will produce a file user migration And user model.
After that, don’t forget to run the command
rake db:migrate
to process the migration file that was created.
After generating the device then on the file config/routes.rb will experience changes. These changes are as follows.
Try running the following command in terminal and see what URLs are generated fromgenerate design
rails routes
Create a user for the first time
Create a user for the first time
The next step we will change the view to show the login and registration links when we first open the page. http://localhost:3000/.
To create a user, if the command was executed correctly then to save the user just open the URL http://localhost:3000/users/sign_up. This page is the user creation/registration page.
User Registration Page
View edit
Editing the controller
Next, we need to make changes to the controller. All you have to do is add the following script to application_controller.rb which is in the file application/controllers.
Now try running the project again by running the following command in the terminal. so do it restart terminal server
The steps above are one way to use Gem devices in Rails projects. This “CURRENCY” gem is very useful for handling authentication in Rails with all the convenience it offers.
That’s all for this lesson on using “CURRENCY”. We hope this tutorial will be an easy-to-understand lesson for all of us.
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