kotovalexarian-likes-github/rails--rails

mirror of https://github.com/rails/rails.git synced 2022-11-09 12:12:34 -05:00

Ruby on Rails

activejob activerecord framework html mvc rails ruby

Find a file

Stan Lo dde7134e07 Freeze fragment cache related instrument name. ActionMailer::Base#instrument_name and ActionController::Base#instrument_name will be frequently called once caching is enabled. So it's better to freeze them instead of create new string on every call. Also, the instrument name in #instrument_fragment_cache will usually be "write_fragment.action_controller" or "read_fragment.action_controller". So freezing them might also gain some performance improvement. We have done something like this in other places: https://github.com/rails/rails/blob/master/actionview/lib/action_view/template.rb#L348		2017-02-07 00:41:02 +08:00
.github
actioncable	bin/test for Active Job and Action Cable tests	2017-02-02 16:27:42 +09:00
actionmailer	Freeze fragment cache related instrument name.	2017-02-07 00:41:02 +08:00
actionpack	Freeze fragment cache related instrument name.	2017-02-07 00:41:02 +08:00
actionview	Correct spelling	2017-02-05 19:00:18 -06:00
activejob	bin/test for Active Job and Action Cable tests	2017-02-02 16:27:42 +09:00
activemodel	Make BigDecimal casting consistent on different platforms	2017-01-22 10:28:01 -05:00
activerecord	Merge pull request #27919 from bf4/correct_spelling	2017-02-06 11:12:52 -05:00
activesupport	Merge pull request #27919 from bf4/correct_spelling	2017-02-06 11:12:52 -05:00
ci
guides	Fix typo in guide: _articles should be _article	2017-02-03 11:46:08 -05:00
railties	Correct spelling	2017-02-05 19:00:18 -06:00
tasks
tools
.codeclimate.yml
.gitattributes
.gitignore	[ci skip] Add .byebug_history to .gitignore	2017-01-11 14:29:07 +03:00
.rubocop.yml	Rename AlignWith to EnforcedStyleAlignWith	2017-01-16 15:36:57 +09:00
.travis.yml	Add sqlite3_mem adapter to Travis CI	2017-01-31 16:23:13 +00:00
.yardopts
CODE_OF_CONDUCT.md
CONTRIBUTING.md
Gemfile	delayed_job and delayed_job_active_record gems with AR5 support are available	2017-01-29 09:05:06 +09:00
Gemfile.lock	delayed_job and delayed_job_active_record gems with AR5 support are available	2017-01-29 09:05:06 +09:00
MIT-LICENSE
rails.gemspec
RAILS_VERSION
Rakefile
README.md
RELEASING_RAILS.md
version.rb

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

Install Rails at the command prompt if you haven't yet:
```
 $ gem install rails
```
At the command prompt, create a new Rails application:
```
 $ rails new myapp
```
where "myapp" is the application name.
Change directory to myapp and start the web server:
```
 $ cd myapp
 $ rails server
```
Run with --help or -h for options.
Using a browser, go to http://localhost:3000 and you'll see: "Yay! You’re on Rails!"
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

License