1
0
Fork 0
mirror of https://github.com/rails/rails.git synced 2022-11-09 12:12:34 -05:00
Ruby on Rails
Find a file
2020-12-04 15:52:10 +03:00
.github Merge pull request #39420 from jonathanhefner/verba-sequentur-config 2020-08-26 13:47:22 -04:00
actioncable Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
actionmailbox Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
actionmailer Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
actionpack Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
actiontext Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
actionview Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
activejob Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
activemodel Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
activerecord Don't use explicit references for join aliases 2020-12-04 15:19:20 +09:00
activestorage Allow custom purpose for ActiveStorage signed IDs 2020-12-03 12:36:52 -05:00
activesupport Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
ci Remove .travis.yml and ci/travis.rb 2020-01-02 09:27:53 +09:00
guides Merge pull request #40731 from ghiculescu/patch-2 2020-12-03 10:49:08 -05:00
railties Add benchmark method that can be called from anywhere 2020-12-04 15:52:10 +03:00
tasks Fix release task 2019-11-27 12:24:31 -03:00
tools Fix bin/test 2020-10-30 21:33:19 +00:00
.gitattributes
.gitignore Output junit format test report 2019-04-04 14:34:46 +09:00
.rubocop.yml Re-enable Layout/SpaceAroundOperators cop 2020-10-23 16:12:15 +09:00
.yardopts Updating .yardopts to document .rb files in [GEM]/app 2019-08-20 13:25:36 -04:00
.yarnrc Make Webpacker the default JavaScript compiler for Rails 6 (#33079) 2018-09-30 22:31:21 -07:00
Brewfile Address Error: caskroom/cask was moved. Tap homebrew/cask-cask instead. 2019-12-18 18:50:57 +09:00
CODE_OF_CONDUCT.md Updated links from http to https in guides, docs, etc 2019-03-09 16:43:47 +05:30
CONTRIBUTING.md Adjust link to only include 'the team' rather than 'join the team' as the former suggests it's a link to get on a list 2020-09-19 14:20:09 -05:00
Gemfile Move unused build gems from ActionCable group 2020-11-26 18:58:17 -05:00
Gemfile.lock Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
MIT-LICENSE Bump license years from 2019 to 2020 [ci skip] 2020-01-01 15:10:31 +05:30
package.json Install JavaScript packages before run test 2019-02-11 09:58:08 +09:00
rails.gemspec Update outdated bundler in gemspec 2020-08-18 00:39:54 +08:00
RAILS_VERSION Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
Rakefile Use frozen string literal in root files 2017-08-13 22:14:24 +09:00
README.md remove reference to global rails command and replace with bin/rails 2019-12-27 19:32:37 +00:00
RELEASING_RAILS.md fix: Update Agile Web Development with Rails book link [ci skip] 2020-08-13 10:36:46 +05:30
version.rb Start Rails 6.2 development 🎉 2020-12-03 01:35:29 +00:00
yarn.lock Upgrade kind-of 2020-04-19 23:59:27 -03:00

Welcome to Rails

What's Rails?

Rails is a web-application framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern.

Understanding the MVC pattern is key to understanding Rails. MVC divides your application into three layers: Model, View, and Controller, each with a specific responsibility.

Model layer

The Model layer represents the domain model (such as Account, Product, Person, Post, etc.) and encapsulates the business logic specific to your application. In Rails, database-backed model classes are derived from ActiveRecord::Base. Active Record allows you to present the data from database rows as objects and embellish these data objects with business logic methods. Although most Rails models are backed by a database, models can also be ordinary Ruby classes, or Ruby classes that implement a set of interfaces as provided by the Active Model module.

Controller layer

The Controller layer is responsible for handling incoming HTTP requests and providing a suitable response. Usually, this means returning HTML, but Rails controllers can also generate XML, JSON, PDFs, mobile-specific views, and more. Controllers load and manipulate models, and render view templates in order to generate the appropriate HTTP response. In Rails, incoming requests are routed by Action Dispatch to an appropriate controller, and controller classes are derived from ActionController::Base. Action Dispatch and Action Controller are bundled together in Action Pack.

View layer

The View layer is composed of "templates" that are responsible for providing appropriate representations of your application's resources. Templates can come in a variety of formats, but most view templates are HTML with embedded Ruby code (ERB files). Views are typically rendered to generate a controller response or to generate the body of an email. In Rails, View generation is handled by Action View.

Frameworks and libraries

Active Record, Active Model, Action Pack, and Action View can each be used independently outside Rails. In addition to that, Rails also comes with Action Mailer, a library to generate and send emails; Action Mailbox, a library to receive emails within a Rails application; Active Job, a framework for declaring jobs and making them run on a variety of queuing backends; Action Cable, a framework to integrate WebSockets with a Rails application; Active Storage, a library to attach cloud and local files to Rails applications; Action Text, a library to handle rich text content; and Active Support, a collection of utility classes and standard library extensions that are useful for Rails, and may also be used independently outside Rails.

Getting Started

  1. Install Rails at the command prompt if you haven't yet:

     $ gem install rails
    
  2. At the command prompt, create a new Rails application:

     $ rails new myapp
    

    where "myapp" is the application name.

  3. Change directory to myapp and start the web server:

     $ cd myapp
     $ bin/rails server
    

    Run with --help or -h for options.

  4. Go to http://localhost:3000 and you'll see: "Yay! Youre on Rails!"

  5. Follow the guidelines to start developing your application. You may find the following resources handy:

Contributing

Code Triage Badge

We encourage you to contribute to Ruby on Rails! Please check out the Contributing to Ruby on Rails guide for guidelines about how to proceed. Join us!

Trying to report a possible security vulnerability in Rails? Please check out our security policy for guidelines about how to proceed.

Everyone interacting in Rails and its sub-projects' codebases, issue trackers, chat rooms, and mailing lists is expected to follow the Rails code of conduct.

Code Status

Build Status

License

Ruby on Rails is released under the MIT License.