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Ruby on Rails
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Rafael Mendonça França 5b0ea95a1a
Merge pull request #36545 from tomfakes/screenshot-updates
HTML page save during screenshot and multiple shots per test
2019-07-27 22:48:24 -04:00
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actioncable Enable Layout/EmptyLinesAroundAccessModifier cop 2019-06-13 12:00:45 +09:00
actionmailbox Fix Bcc header missing with emails from conductor and test helpers 2019-07-26 13:04:16 -04:00
actionmailer Merge pull request #36227 from betesh/avoid-misleading-error-about-late-attachments 2019-07-26 16:00:44 -04:00
actionpack Merge pull request #36545 from tomfakes/screenshot-updates 2019-07-27 22:48:24 -04:00
actiontext Implement ActiveStorage::Blob#attachable_plain_text_representation 2019-07-07 22:03:06 -04:00
actionview Use match? where we don't need MatchData 2019-07-27 13:06:49 +09:00
activejob Ability to test activejobs with relative delay 2019-07-26 00:41:15 +02:00
activemodel Use match? where we don't need MatchData 2019-07-27 13:06:49 +09:00
activerecord Merge pull request #36303 from gaotongfei/feature/ignore-specified-fixtures 2019-07-27 21:12:06 -04:00
activestorage Use a smaller TIFF file as fixture 2019-07-27 23:08:49 +05:30
activesupport Use match? where we don't need MatchData 2019-07-27 13:06:49 +09:00
ci Use webdrivers instead of chromedriver-helper for AV UJS tests 2019-03-24 16:05:30 -05:00
guides Merge pull request #36254 from sharang-d/remove-named-helpers 2019-07-26 14:39:59 -04:00
railties Use match? where we don't need MatchData 2019-07-27 13:06:49 +09:00
tasks Fix announce script 2019-03-22 00:05:10 -04:00
tools Enable Layout/EmptyLinesAroundAccessModifier cop 2019-06-13 12:00:45 +09:00
.codeclimate.yml Bump rubocop to 0.71 2019-06-06 15:34:50 +05:30
.gitattributes
.gitignore Output junit format test report 2019-04-04 14:34:46 +09:00
.rubocop.yml Enable Layout/EmptyLinesAroundAccessModifier cop 2019-06-13 12:00:45 +09:00
.travis.yml
.yardopts
.yarnrc
Brewfile
CODE_OF_CONDUCT.md
CONTRIBUTING.md
Gemfile Stop setting a default Capybara app host 2019-07-24 22:19:21 -04:00
Gemfile.lock Stop setting a default Capybara app host 2019-07-24 22:19:21 -04:00
MIT-LICENSE
package.json
rails.gemspec
RAILS_VERSION Start Rails 6.1 development 2019-04-24 15:57:14 -04:00
Rakefile
README.md s/Travis/Buildkite/ 2019-04-09 11:28:49 +09:30
RELEASING_RAILS.md NPM -> npm [ci skip] 2019-05-12 12:00:03 +02:00
version.rb Start Rails 6.1 development 2019-04-24 15:57:14 -04:00
yarn.lock Fix outdated yarn.lock 2019-04-25 14:27:11 +05:30

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
     $ 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.