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Ruby on Rails
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Sean Griffin 36e9be8524 Remove composed_of special case from multi-parameter attributes
As we move towards removing the `klass` method from `column`, the else
clause as it stands right now will become the only case.
2014-06-06 14:24:16 -06:00
actionmailer Restore I18n.locale to default after test. 2014-06-07 00:52:24 +08:00
actionpack Use a frozen Set instance for CGI_VARIABLES. 2014-06-05 22:05:02 -04:00
actionview Merge pull request #15513 from zenspider/remove_flush_output_buffer 2014-06-05 10:05:53 -07:00
activemodel Feature requests should be made on the mailing list, not submitted to 2014-06-01 19:11:39 -07:00
activerecord Remove composed_of special case from multi-parameter attributes 2014-06-06 14:24:16 -06:00
activesupport Merge pull request #15421 from gchan/time_with_zone_precision 2014-06-05 16:23:47 +09:30
ci Reorganize ActiveRecord tasks [Arun Agrawal & Abd ar-Rahman Hamidi] 2014-05-16 23:09:05 +02:00
guides docs, update includes + where example in AR guide. [ci skip] 2014-06-06 09:16:12 +02:00
railties Emit suggested generator names when not found 2014-06-04 16:28:43 -05:00
tasks Fix release task 2014-03-31 14:45:34 -04:00
tools Removing Gem.source_index [ci skip] 2013-07-13 12:05:52 +02:00
.gitignore Updated link to to GitHub article about ignoring files [ci skip] 2013-05-05 20:33:24 +05:30
.travis.yml Revert "Remove ruby-head from allow_failures matrix" 2014-05-15 11:04:56 -03:00
.yardopts Let YARD document the railties gem 2010-09-09 18:24:34 -07:00
CONTRIBUTING.md Add info about contributing to docs to CONTRIBUTING.md 2013-06-06 17:57:13 +01:00
Gemfile For our build, stick with mail 2.5.x for now 2014-06-05 03:32:42 +09:30
install.rb actionview should be able to install using install.rb [ci skip] 2013-07-09 00:10:07 +02:00
load_paths.rb require "rubygems" is obsolete in Ruby 1.9.3 2012-05-13 14:47:25 +02:00
rails.gemspec Make possible to use sprockets-rails 2.1 2014-04-04 16:25:46 -03:00
RAILS_VERSION update version to 4.2.0.alpha 2014-02-23 13:14:43 +01:00
Rakefile Fix task comment to match which file should be changed 2014-03-25 15:37:18 -03:00
README.md Use SVG version of travis build status badge [skip ci] 2014-04-06 20:39:28 +03:00
RELEASING_RAILS.rdoc Changed 'so' to 'see' 2014-04-02 00:31:52 -04:00
version.rb Introduce Rails.gem_version 2014-03-05 12:37:38 -05:00

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. 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 Record 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, Action Pack, and Action View can each be used independently outside Rails. In addition to them, Rails also comes with Action Mailer (README), a library to generate and send emails; 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: "Welcome aboard: You're riding Ruby 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!

Code Status

  • Build Status

License

Ruby on Rails is released under the MIT License.