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Ruby on Rails - forked for implementing I18n patch
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Pull request Compare This branch is 40 commits ahead, 29796 commits behind rails:master.
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actionmailer Master version is 3.2.0.beta
actionpack use Zlib.crc2 rather that bytes.sum, as per Aaron's suggestion
activemodel Enable passing root: false to #to_json
activerecord Ensure that the foreign key gets set when doing record.create_associa…
activeresource Master version is 3.2.0.beta
activesupport remove patches for now
bin Add railties to the LOAD_PATH if running from a Rails checkout
ci minor change for xavier
railties Don't raise on mass assignment for test
tasks adding a rake task to help generate changelog notes for release annou…
tools Support an extra profile printer arg
.gitignore (temporary hack) generate a main file for RDoc escaping "Rails"
.travis.yml run isolated and non isolated in each build set
.yardopts Let YARD document the railties gem
Gemfile don't install ruby-debug19 on travis, linecache19 is taking forever a…
RAILS_VERSION Master version is 3.2.0.beta
README.rdoc To solve the problem of links being broken in GitHub for the sake of …
Rakefile explains why links are gsub'ed, and changes the regexp delimiters
install.rb Add install script for testing gems locally
load_paths.rb remove call to source index
rails.gemspec Revert "The rails gem doesn't have a lib directory - closes #1958."
version.rb Master version is 3.2.0.beta


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 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).

The Model layer represents your domain model (such as Account, Product, Person, Post) and encapsulates the business logic that is specific to your application. In Rails, database-backed model classes are derived from ActiveRecord::Base. ActiveRecord 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 ActiveModel 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 manipulate models and render view templates in order to generate the appropriate HTTP response.

In Rails, the Controller and View layers are handled together by Action Pack. These two layers are bundled in a single package due to their heavy interdependence. This is unlike the relationship between the Active Record and Action Pack which are independent. Each of these packages can be used independently outside of Rails. You can read more about Action Pack in its README.

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 for options.

  4. Go to 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:


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


Ruby on Rails is released under the MIT license.

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