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
Rafael França 589adea81c Merge pull request #29828 from kamipo/fix_using_custom_table_with_joins
Fix `JoinDependency` with using a custom table
2017-07-17 17:37:39 -04:00
.github Limit stale checks to issues 2017-04-01 11:27:26 -05:00
actioncable Fix postgresql adapter setup for ActionCable tests 2017-07-11 16:38:30 +03:00
actionmailer Merge branch 'master' into require_relative_2017 2017-07-02 13:50:25 -07:00
actionpack Scrub the invalid paramter value before using it in the error 2017-07-17 13:07:59 -04:00
actionview Enable Layout/FirstParameterIndentation cop 2017-07-17 14:08:32 +09:00
activejob [Active Job] rubocop -a --only Layout/EmptyLineAfterMagicComment 2017-07-11 13:12:32 +09:00
activemodel Merge pull request #29788 from kamipo/remove_unused_mutex_m 2017-07-17 13:54:37 -04:00
activerecord Fix JoinDependency with using a custom table 2017-07-18 04:24:38 +09:00
activesupport Merge pull request #29757 from lugray/hash_with_indifferent_access_default 2017-07-17 13:41:56 -05:00
ci Skip isolated test runs on older rubies 2017-03-23 03:51:03 +10:30
guides Merge pull request #27662 from nhorton/patch-1 2017-07-17 11:42:27 -04:00
railties support - as an argument to rails runner 2017-07-17 13:46:44 -06:00
tasks Define path with __dir__ 2017-05-23 00:53:51 +03:00
tools * Don't eagerly require Rails' minitest plugin. 2017-07-10 20:40:16 +02:00
.codeclimate.yml
.gitattributes
.gitignore
.rubocop.yml Enable Layout/FirstParameterIndentation cop 2017-07-17 14:08:32 +09:00
.travis.yml Allows for other common redis options to be in cable.yml, by default 2017-06-22 16:15:47 +08:00
.yardopts
CODE_OF_CONDUCT.md
CONTRIBUTING.md Remove html tag making markdown misrender [ci skip] 2017-06-05 22:11:57 -05:00
Gemfile Add bootsnap to default Gemfile: 2017-07-17 13:17:45 -04:00
Gemfile.lock Add bootsnap to default Gemfile: 2017-07-17 13:17:45 -04:00
MIT-LICENSE
rails.gemspec Allow the use of Bundler 2.0 2017-07-04 10:23:47 -04:00
RAILS_VERSION Start Rails 5.2 development 2017-03-22 10:11:39 +10:30
Rakefile Define path with __dir__ 2017-05-23 00:53:51 +03:00
README.md [ci skip] CodeTriage badge 2017-07-17 15:20:05 -05:00
RELEASING_RAILS.md Bump from h3 to h2 tag 2017-03-25 12:27:52 -04:00
version.rb Start Rails 5.2 development 2017-03-22 10:11:39 +10:30

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! 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.