Ruby on Rails
Ruby HTML CSS CoffeeScript E JavaScript
Latest commit 58e0b1d Aug 23, 2016 @rafaelfranca rafaelfranca committed on GitHub Merge pull request #26228 from kamipo/remove_unnecessary_any_and_many
Remove unnecessary `any?` and `many?` methods for collection proxy
Failed to load latest commit information.
.github Add a note about adding CHANGELOG entries at the top of the file [ci … Jul 2, 2016
actioncable Prevent invocation of channel action if rejected connection Aug 19, 2016
actionmailer Add three new rubocop rules Aug 16, 2016
actionpack Include the content of the flash in the auto-generated etag (#26250) Aug 22, 2016
actionview Improve TagHelper#tag_option performance Aug 23, 2016
activejob Merge pull request #26205 from pedaling-corp/fix/active-job-resque Aug 23, 2016
activemodel Add three new rubocop rules Aug 16, 2016
activerecord Merge pull request #26228 from kamipo/remove_unnecessary_any_and_many Aug 23, 2016
activesupport Merge pull request #25628 from ysksn/options Aug 17, 2016
ci normalizes indentation and whitespace across the project Aug 6, 2016
guides Merge pull request #26249 from rafamanzo/add_redis_to_development_dep… Aug 22, 2016
railties Merge pull request #26224 from jonatack/consistent-asset-precompile-e… Aug 19, 2016
tasks modernizes hash syntax in the rest of the project Aug 6, 2016
tools Add three new rubocop rules Aug 16, 2016
.codeclimate.yml Generators and tests are under the same style rules Jul 27, 2016
.gitattributes adds .gitattributes to enable Ruby-awareness Mar 16, 2016
.gitignore .gitignore: Ignore .ruby-version in any subdir Sep 7, 2015
.rubocop.yml Add three new rubocop rules Aug 16, 2016
.travis.yml Try the newest bundler Jul 2, 2016
.yardopts Let YARD document the railties gem Sep 10, 2010
CODE_OF_CONDUCT.md Move the CoC text to the Rails website Aug 21, 2015
CONTRIBUTING.md Add notes on cosmetic patches May 13, 2016
Gemfile applies new string literal convention in Gemfile Aug 6, 2016
Gemfile.lock Add accidentally removed dependency in Gemfile.lock Aug 3, 2016
RAILS_VERSION Start Rails 5.1 development 🎉 May 10, 2016
README.md Fix title of README according to Markdown conventions Feb 25, 2016
RELEASING_RAILS.md fix grammar May 31, 2016
Rakefile modernizes hash syntax in the rest of the project Aug 6, 2016
rails.gemspec applies new string literal convention in the gemspecs Aug 6, 2016
version.rb Start Rails 5.1 development 🎉 May 10, 2016

README.md

Welcome to 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, each with a specific responsibility.

The Model layer represents your domain model (such as Account, Product, Person, Post, etc.) and encapsulates the business logic that is 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. You can read more about Active Record in its README. 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. You can read more about Active Model in its README.

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. You can read more about Action Pack in its README.

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. You can read more about Action View in its README.

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 (README), a library to generate and send emails; Active Job (README), a framework for declaring jobs and making them run on a variety of queueing backends; Action Cable (README), a framework to integrate WebSockets with a Rails application; and Active Support (README), 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
    $ rails server
    

    Run with --help or -h for options.

  4. Using a browser, go to http://localhost:3000 and you'll see: "Yay! You’re on Rails!"

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

Contributing

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!

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.