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rails--rails/railties
2005-11-07 08:09:38 +00:00
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bin Added script/about to display formatted Rails::Info output 2005-11-05 14:30:47 +00:00
configs Last conversion from dbfile to database 2005-10-30 08:32:04 +00:00
dispatches Added fixed gateway script [Nicholas Seckar] 2005-07-06 04:29:18 +00:00
doc Drop the _doc nonsense and use the index.html straight on 2005-02-24 12:26:30 +00:00
environments Added app/services as a default dir in the Rails skeleton and to the load path. Use it to keep classes like MaintenanceService and PaymentGateway [DHH] 2005-10-28 13:00:33 +00:00
helpers Beef up test fixtures documentation for test/test_helper.rb 2005-10-29 07:32:33 +00:00
html Change javascript_include_tag :defaults to not use script.aculo.us loader, which facilitates the use of plugins for future script.aculo.us and third party javascript extensions, and provide register_javascript_include_default for plugins to specify additional JavaScript files to load. Removed scriptaculous.js, slider.js and builder.js 2005-11-01 06:34:40 +00:00
lib New configuration option config.plugin_paths which may be a single path like the default 'vendor/plugins' or an array of paths: ['vendor/plugins', 'lib/plugins']. Plugins are discovered in nested paths, so you can organize your plugins directory as you like. Refactor load_plugin from load_plugins. Simplify initializer unit test. Closes #2757. 2005-11-07 08:09:38 +00:00
test New configuration option config.plugin_paths which may be a single path like the default 'vendor/plugins' or an array of paths: ['vendor/plugins', 'lib/plugins']. Plugins are discovered in nested paths, so you can organize your plugins directory as you like. Refactor load_plugin from load_plugins. Simplify initializer unit test. Closes #2757. 2005-11-07 08:09:38 +00:00
CHANGELOG New configuration option config.plugin_paths which may be a single path like the default 'vendor/plugins' or an array of paths: ['vendor/plugins', 'lib/plugins']. Plugins are discovered in nested paths, so you can organize your plugins directory as you like. Refactor load_plugin from load_plugins. Simplify initializer unit test. Closes #2757. 2005-11-07 08:09:38 +00:00
fresh_rakefile Run set load path so others can do boot and get path 2005-09-30 15:13:44 +00:00
MIT-LICENSE Initial 2004-11-24 01:04:44 +00:00
Rakefile Added script/about to display formatted Rails::Info output 2005-11-05 14:30:47 +00:00
README Removed app/apis as a default empty dir since its automatically created when using script/generate web_service [DHH] 2005-10-28 22:01:11 +00:00

== Welcome to Rails

Rails is a web-application and persistance framework that includes everything
needed to create database-backed web-applications according to the
Model-View-Control pattern of separation. This pattern splits the view (also
called the presentation) into "dumb" templates that are primarily responsible
for inserting pre-build data in between HTML tags. The model contains the
"smart" domain objects (such as Account, Product, Person, Post) that holds all
the business logic and knows how to persist themselves to a database. The
controller handles the incoming requests (such as Save New Account, Update
Product, Show Post) by manipulating the model and directing data to the view.

In Rails, the model is handled by what's called a object-relational mapping
layer entitled Active Record. This layer 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 
link:files/vendor/rails/activerecord/README.html.

The controller and view is handled by the Action Pack, which handles both
layers by its two parts: Action View and Action Controller. 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 that is much
more separate. Each of these packages can be used independently outside of
Rails.  You can read more about Action Pack in 
link:files/vendor/rails/actionpack/README.html.


== Getting started

1. Run the WEBrick servlet: <tt>ruby script/server</tt> (run with --help for options)
   ...or if you have lighttpd installed: <tt>ruby script/lighttpd</tt> (it's faster)
2. Go to http://localhost:3000/ and get "Congratulations, you've put Ruby on Rails!"
3. Follow the guidelines on the "Congratulations, you've put Ruby on Rails!" screen


== Example for Apache conf

  <VirtualHost *:80>
    ServerName rails
    DocumentRoot /path/application/public/
    ErrorLog /path/application/log/server.log
  
    <Directory /path/application/public/>
      Options ExecCGI FollowSymLinks
      AllowOverride all
      Allow from all
      Order allow,deny
    </Directory>
  </VirtualHost>

NOTE: Be sure that CGIs can be executed in that directory as well. So ExecCGI
should be on and ".cgi" should respond. All requests from 127.0.0.1 goes
through CGI, so no Apache restart is necessary for changes. All other requests
goes through FCGI (or mod_ruby) that requires restart to show changes.


== Debugging Rails

Have "tail -f" commands running on both the server.log, production.log, and
test.log files. Rails will automatically display debugging and runtime
information to these files. Debugging info will also be shown in the browser
on requests from 127.0.0.1.


== Breakpoints

Breakpoint support is available through the script/breakpointer client. This
means that you can break out of execution at any point in the code, investigate
and change the model, AND then resume execution! Example:

  class WeblogController < ActionController::Base
    def index
      @posts = Post.find_all
      breakpoint "Breaking out from the list"
    end
  end
  
So the controller will accept the action, run the first line, then present you
with a IRB prompt in the breakpointer window. Here you can do things like:

Executing breakpoint "Breaking out from the list" at .../webrick_server.rb:16 in 'breakpoint'

  >> @posts.inspect
  => "[#<Post:0x14a6be8 @attributes={\"title\"=>nil, \"body\"=>nil, \"id\"=>\"1\"}>, 
       #<Post:0x14a6620 @attributes={\"title\"=>\"Rails you know!\", \"body\"=>\"Only ten..\", \"id\"=>\"2\"}>]"
  >> @posts.first.title = "hello from a breakpoint"
  => "hello from a breakpoint"

...and even better is that you can examine how your runtime objects actually work:

  >> f = @posts.first 
  => #<Post:0x13630c4 @attributes={"title"=>nil, "body"=>nil, "id"=>"1"}>
  >> f.
  Display all 152 possibilities? (y or n)

Finally, when you're ready to resume execution, you press CTRL-D


== Console

You can interact with the domain model by starting the console through script/console. 
Here you'll have all parts of the application configured, just like it is when the
application is running. You can inspect domain models, change values, and save to the
database. Start the script without arguments will launch it in the development environment.
Passing an argument will specify a different environment, like <tt>console production</tt>.


== Description of contents

app
  Holds all the code that's specific to this particular application.

app/controllers
  Holds controllers that should be named like weblog_controller.rb for
  automated URL mapping. All controllers should descend from
  ActionController::Base.

app/models
  Holds models that should be named like post.rb.
  Most models will descent from ActiveRecord::Base.
  
app/views
  Holds the template files for the view that should be named like
  weblog/index.rhtml for the WeblogController#index action. All views uses eRuby
  syntax. This directory can also be used to keep stylesheets, images, and so on
  that can be symlinked to public.
  
app/helpers
  Holds view helpers that should be named like weblog_helper.rb.

config
  Configuration files for the Rails environment, the routing map, the database, and other dependencies.

components
  Self-contained mini-applications that can bundle controllers, models, and views together.

lib
  Application specific libraries. Basically, any kind of custom code that doesn't
  belong controllers, models, or helpers. This directory is in the load path.
    
public
  The directory available for the web server. Contains sub-directories for images, stylesheets,
  and javascripts. Also contains the dispatchers and the default HTML files.

script
  Helper scripts for automation and generation.

test
  Unit and functional tests along with fixtures.

vendor
  External libraries that the application depend on. This directory is in the load path.