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Initial commit with user accounts and theme. Use this to start apps i…
…n the future.
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Jori Hardman committed Jun 17, 2010
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243 changes: 243 additions & 0 deletions README
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== Welcome to Rails

Rails is a web-application framework that includes everything needed to create
database-backed web applications according to the Model-View-Control pattern.

This pattern splits the view (also called the presentation) into "dumb" templates
that are primarily responsible for inserting pre-built 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 an 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 are 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. At the command prompt, start a new Rails application using the <tt>rails</tt> command
and your application name. Ex: rails myapp
2. Change directory into myapp and start the web server: <tt>script/server</tt> (run with --help for options)
3. Go to http://localhost:3000/ and get "Welcome aboard: You're riding the Rails!"
4. Follow the guidelines to start developing your application


== Web Servers

By default, Rails will try to use Mongrel if it's are installed when started with script/server, otherwise Rails will use WEBrick, the webserver that ships with Ruby. But you can also use Rails
with a variety of other web servers.

Mongrel is a Ruby-based webserver with a C component (which requires compilation) that is
suitable for development and deployment of Rails applications. If you have Ruby Gems installed,
getting up and running with mongrel is as easy as: <tt>gem install mongrel</tt>.
More info at: http://mongrel.rubyforge.org

Say other Ruby web servers like Thin and Ebb or regular web servers like Apache or LiteSpeed or
Lighttpd or IIS. The Ruby web servers are run through Rack and the latter can either be setup to use
FCGI or proxy to a pack of Mongrels/Thin/Ebb servers.

== Apache .htaccess example for FCGI/CGI

# General Apache options
AddHandler fastcgi-script .fcgi
AddHandler cgi-script .cgi
Options +FollowSymLinks +ExecCGI

# If you don't want Rails to look in certain directories,
# use the following rewrite rules so that Apache won't rewrite certain requests
#
# Example:
# RewriteCond %{REQUEST_URI} ^/notrails.*
# RewriteRule .* - [L]

# Redirect all requests not available on the filesystem to Rails
# By default the cgi dispatcher is used which is very slow
#
# For better performance replace the dispatcher with the fastcgi one
#
# Example:
# RewriteRule ^(.*)$ dispatch.fcgi [QSA,L]
RewriteEngine On

# If your Rails application is accessed via an Alias directive,
# then you MUST also set the RewriteBase in this htaccess file.
#
# Example:
# Alias /myrailsapp /path/to/myrailsapp/public
# RewriteBase /myrailsapp

RewriteRule ^$ index.html [QSA]
RewriteRule ^([^.]+)$ $1.html [QSA]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ dispatch.cgi [QSA,L]

# In case Rails experiences terminal errors
# Instead of displaying this message you can supply a file here which will be rendered instead
#
# Example:
# ErrorDocument 500 /500.html

ErrorDocument 500 "<h2>Application error</h2>Rails application failed to start properly"


== Debugging Rails

Sometimes your application goes wrong. Fortunately there are a lot of tools that
will help you debug it and get it back on the rails.

First area to check is the application log files. Have "tail -f" commands running
on the server.log and development.log. 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.

You can also log your own messages directly into the log file from your code using
the Ruby logger class from inside your controllers. Example:

class WeblogController < ActionController::Base
def destroy
@weblog = Weblog.find(params[:id])
@weblog.destroy
logger.info("#{Time.now} Destroyed Weblog ID ##{@weblog.id}!")
end
end

The result will be a message in your log file along the lines of:

Mon Oct 08 14:22:29 +1000 2007 Destroyed Weblog ID #1

More information on how to use the logger is at http://www.ruby-doc.org/core/

Also, Ruby documentation can be found at http://www.ruby-lang.org/ including:

* The Learning Ruby (Pickaxe) Book: http://www.ruby-doc.org/docs/ProgrammingRuby/
* Learn to Program: http://pine.fm/LearnToProgram/ (a beginners guide)

These two online (and free) books will bring you up to speed on the Ruby language
and also on programming in general.


== Debugger

Debugger support is available through the debugger command when you start your Mongrel or
Webrick server with --debugger. This means that you can break out of execution at any point
in the code, investigate and change the model, AND then resume execution!
You need to install ruby-debug to run the server in debugging mode. With gems, use 'gem install ruby-debug'
Example:

class WeblogController < ActionController::Base
def index
@posts = Post.find(:all)
debugger
end
end

So the controller will accept the action, run the first line, then present you
with a IRB prompt in the server window. Here you can do things like:

>> @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 debugger"
=> "hello from a debugger"

...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 enter "cont"


== Console

You can interact with the domain model by starting the console through <tt>script/console</tt>.
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. Starting the script without arguments will launch it in the development environment.
Passing an argument will specify a different environment, like <tt>script/console production</tt>.

To reload your controllers and models after launching the console run <tt>reload!</tt>

== dbconsole

You can go to the command line of your database directly through <tt>script/dbconsole</tt>.
You would be connected to the database with the credentials defined in database.yml.
Starting the script without arguments will connect you to the development database. Passing an
argument will connect you to a different database, like <tt>script/dbconsole production</tt>.
Currently works for mysql, postgresql and sqlite.

== Description of Contents

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

app/controllers
Holds controllers that should be named like weblogs_controller.rb for
automated URL mapping. All controllers should descend from ApplicationController
which itself descends from ActionController::Base.

app/models
Holds models that should be named like post.rb.
Most models will descend from ActiveRecord::Base.

app/views
Holds the template files for the view that should be named like
weblogs/index.html.erb for the WeblogsController#index action. All views use eRuby
syntax.

app/views/layouts
Holds the template files for layouts to be used with views. This models the common
header/footer method of wrapping views. In your views, define a layout using the
<tt>layout :default</tt> and create a file named default.html.erb. Inside default.html.erb,
call <% yield %> to render the view using this layout.

app/helpers
Holds view helpers that should be named like weblogs_helper.rb. These are generated
for you automatically when using script/generate for controllers. Helpers can be used to
wrap functionality for your views into methods.

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

db
Contains the database schema in schema.rb. db/migrate contains all
the sequence of Migrations for your schema.

doc
This directory is where your application documentation will be stored when generated
using <tt>rake doc:app</tt>

lib
Application specific libraries. Basically, any kind of custom code that doesn't
belong under controllers, models, or helpers. This directory is in the load path.

public
The directory available for the web server. Contains subdirectories for images, stylesheets,
and javascripts. Also contains the dispatchers and the default HTML files. This should be
set as the DOCUMENT_ROOT of your web server.

script
Helper scripts for automation and generation.

test
Unit and functional tests along with fixtures. When using the script/generate scripts, template
test files will be generated for you and placed in this directory.

vendor
External libraries that the application depends on. Also includes the plugins subdirectory.
If the app has frozen rails, those gems also go here, under vendor/rails/.
This directory is in the load path.
10 changes: 10 additions & 0 deletions Rakefile
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# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.

require(File.join(File.dirname(__FILE__), 'config', 'boot'))

require 'rake'
require 'rake/testtask'
require 'rake/rdoctask'

require 'tasks/rails'
62 changes: 62 additions & 0 deletions app/controllers/application_controller.rb
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# Filters added to this controller apply to all controllers in the application.
# Likewise, all the methods added will be available for all controllers.

class ApplicationController < ActionController::Base
helper :all
helper_method :current_user_session, :current_user
filter_parameter_logging :password, :password_confirmation

private
def current_user_session
return @current_user_session if defined?(@current_user_session)
@current_user_session = UserSession.find
end

def current_user
return @current_user if defined?(@current_user)
@current_user = current_user_session && current_user_session.record
end

def require_user
unless current_user
store_location
flash[:notice] = "You must be logged in to access this page"
redirect_to new_user_session_url
return false
end
end

def require_no_user
if current_user
store_location
flash[:notice] = "You must be logged out to access this page"
redirect_to account_url
return false
end
end

def store_location
session[:return_to] = request.request_uri
end

def redirect_back_or_default(default)
redirect_to(session[:return_to] || default)
session[:return_to] = nil
end

def viewable
blastInstance = Blast.find(params.id)
if blastInstance.user_id != current_user.id && !blastInstance.public
redirect_to blasts_url
return false
end
end

def editable
if Blast.find(params.id).user_id != current_user.id
redirect_to blasts_url
return false
end
end

end
9 changes: 9 additions & 0 deletions app/controllers/home_controller.rb
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class HomeController < ApplicationController

def about
end

def contact
end

end
24 changes: 24 additions & 0 deletions app/controllers/user_sessions_controller.rb
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class UserSessionsController < ApplicationController
before_filter :require_no_user, :only => [:new, :create]
before_filter :require_user, :only => :destroy

def new
@user_session = UserSession.new
end

def create
@user_session = UserSession.new(params[:user_session])
if @user_session.save
flash[:notice] = "Login successful!"
redirect_back_or_default blasts_url
else
render :action => :new
end
end

def destroy
current_user_session.destroy
flash[:notice] = "Logout successful!"
redirect_back_or_default "/"
end
end
36 changes: 36 additions & 0 deletions app/controllers/users_controller.rb
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class UsersController < ApplicationController
before_filter :require_no_user, :only => [:new, :create]
before_filter :require_user, :only => [:show, :edit, :update]

def new
@user = User.new
end

def create
@user = User.new(params[:user])
if @user.save
flash[:notice] = "Account registered!"
redirect_back_or_default account_url
else
render :action => :new
end
end

def show
@user = @current_user
end

def edit
@user = @current_user
end

def update
@user = @current_user # makes our views "cleaner" and more consistent
if @user.update_attributes(params[:user])
flash[:notice] = "Account updated!"
redirect_to account_url
else
render :action => :edit
end
end
end
3 changes: 3 additions & 0 deletions app/helpers/application_helper.rb
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# Methods added to this helper will be available to all templates in the application.
module ApplicationHelper
end
2 changes: 2 additions & 0 deletions app/helpers/home_helper.rb
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module HomeHelper
end
2 changes: 2 additions & 0 deletions app/helpers/user_sessions_helper.rb
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module UserSessionsHelper
end

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