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What are the 10 necessary and very useful Ruby on Rails 4 Gems? I believe many inexperienced people are at a loss about this. Therefore, this article summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

The Ruby on Rails framework is a very powerful tool for developing Web applications. It comes with a number of built-in features to help speed up the development of your Web applications, such as intelligent routing and object-relational mappers, all in MVC mode.

Rails is designed to use Ruby gem in a way that can be easily extended. This creates a huge ecosystem of Ruby gem that can be used to extend your applications, and even accelerate your development progress by reducing the time it takes to develop common features. We will review some of the gem that we find very useful below.

Devise

Devise is the most common Gem when using Ruby on Rails

Devise provides an easy-to-use user authentication program for Rails programs, you can use this Gem to achieve user login, registration, password recovery, account locking and other account-related functions.

Pundit

It is important to know the difference between authentication and authorization. Devise may help you verify the identity of the user to ensure that the user can perform an action and access a resource. Pundit provides a simpler and less "magical" rights management solution by defining the authorization system using the Ruby class in a simple way.

Slim

There are a lot of template systems in it. Ruby on Rails uses the eRuby template system by default, but users usually choose another template system instead. Slim is one of the most commonly used, because it allows you to maintain easy-to-read templates with fast maintenance and less compilation time through its simple syntax.

Draper

Draper allows you to create decorators on your module. It makes your view clear and avoids writing helpers. Instead of calling helpers with a module, you just define a decorator that encapsulates the original module and provides some extension methods and properties for your object.

Cells

You will often reuse many components of your application. Typically, for this part of the behavior that is used, you must make sure that your controller invokes the consistent behavior. Cells allows you to take some of the controllers and package them into the small controllers they own. This makes your code more concise and avoids long helper/partial/filter mes.

FriendlyId

Typically, the resource URL is identified by the primary key, which is usually their database ID. However, this may lead to unfriendly reading. FriendlyId can simply convert your URL to make it friendlier and easier to remember. In this way, there are very few changes to your code in your web application.

Simple Form

Forms are the core element of every web application. If you have any interaction with the user, it is typical to use web forms. Simple Form helps simplify this simple but repetitive task. By using DSL to create forms in a simple and easy way, you can spend less time writing the form HTML and more time dealing with the core business logic of the application.

Paperclip

File attachments are not easy to deal with. They usually require a lot of work to implement, or even more time to ensure, in a very secure way. Paperclip handles all these processes in your Rails application and extends a lot of things, such as converting pictures to thumbnails and so on.

Kaminari

Kaminari is not a very descriptive name for a Gem, but it is one of the Gem of * *, with about 5 million downloads. It converts anything from ActiveRecord relations into a simple array by using concise, easy, and range-based API. Among them, API is transparent to ORM or template engine.

Sidekiq

When using Ruby on Rails, there are many options for background processing tools, but Sidekiq is one of them. The reason for its popularity is the simplicity of its API, and its scale is better than other tools.

After reading the above, have you mastered 10 necessary and very useful methods of Ruby on Rails 4 Gems? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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