Initial commit

.gitignore

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+config/database.yml
+config/deploy.rb
+log
+tmp

Capfile

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+load 'deploy' if respond_to?(:namespace) # cap2 differentiator
+Dir['vendor/plugins/*/recipes/*.rb'].each { |plugin| load(plugin) }
+load 'config/deploy'

README

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+asd
+== Welcome to Rails
+
+Rails is a web-application and persistence 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-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. Start the web server: <tt>ruby script/server</tt> (run with --help for options)
+2. Go to http://localhost:3000/ and get "Welcome aboard: You’re riding the Rails!"
+3. Follow the guidelines to start developing your application
+
+
+== Web servers
+
+Rails uses the built-in web server in Ruby called WEBrick by default, so you don't
+have to install or configure anything to play around. 
+
+If you have lighttpd installed, though, it'll be used instead when running script/server.
+It's considerably faster than WEBrick and suited for production use, but requires additional
+installation and currently only works well on OS X/Unix (Windows users are encouraged
+to start with WEBrick). We recommend version 1.4.11 and higher. You can download it from
+http://www.lighttpd.net.
+
+If you want something that's halfway between WEBrick and lighttpd, we heartily recommend
+Mongrel. It's a Ruby-based web server with a C-component (so it requires compilation) that
+also works very well with Windows. See more at http://mongrel.rubyforge.org/.
+
+But of course its also possible to run Rails with the premiere open source web server Apache.
+To get decent performance, though, you'll need to install FastCGI. For Apache 1.3, you want
+to use mod_fastcgi. For Apache 2.0+, you want to use mod_fcgid.
+
+See http://wiki.rubyonrails.com/rails/pages/FastCGI for more information on FastCGI.
+
+== 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 go
+through CGI, so no Apache restart is necessary for changes. All other requests
+go through FCGI (or mod_ruby), which requires a 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. 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>
+
+
+
+== 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 descend 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 use 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.
+
+app/apis
+  Holds API classes for web services.
+
+config
+  Configuration files for the Rails environment, the routing map, the database, and other dependencies.
+
+components
+  Self-contained mini-applications that can bundle together controllers, models, and views.
+
+db
+  Contains the database schema in schema.rb.  db/migrate contains all
+  the sequence of Migrations for your schema.
+
+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.
+
+script
+  Helper scripts for automation and generation.
+
+test
+  Unit and functional tests along with fixtures.
+
+vendor
+  External libraries that the application depends on. Also includes the plugins subdirectory.
+  This directory is in the load path.

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'

app/controllers/application.rb

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+# Filters added to this controller will be run for all controllers in the application.
+# Likewise, all the methods added will be available for all controllers.
+class ApplicationController < ActionController::Base
+end

app/controllers/page_controller.rb

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+class PageController < ApplicationController
+  helper :page
+  verify :method => :post, :only => [:remove_link, :add_link]
+
+  def index
+    redirect_to :action => 'home'
+  end
+
+  def home
+    @links = Link.find(:all)
+    return if not @links.any?
+
+    @max, @min, @divisor = get_link_cloud_data(@links)
+  end
+
+  def add_link
+    @link = Link.new(params[:link])
+    @link.save!
+    @links = Link.find(:all)
+    @max, @min, @divisor = get_link_cloud_data(@links)
+    render :partial => 'link', :collection => @links
+  end
+
+  def click_link
+    link = Link.find(params[:id])
+    click = Click.new(:ip => request.remote_ip)
+    link.clicks << click
+    link.increment!(:click_count)
+    redirect_to link.url
+  end
+
+  def remove_link
+    Link.destroy(params[:id])
+    render :nothing => true
+  end
+
+  protected
+
+  def get_link_cloud_data(links)
+    max = min = links.first.click_count
+    links.each do |link|
+      max = link.click_count if !link.click_count.nil? and link.click_count > max
+      min = link.click_count if !link.click_count.nil? and link.click_count < min
+    end
+    divisor = ((max - min) / 7) + 1 # TODO: replace 7 with the sizes array size itself              
+    return max, min, divisor
+  end
+
+end

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

app/helpers/page_helper.rb

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+module PageHelper
+
+  def link_title_text(link)
+    if link.last_click
+      pluralize(link.click_count, 'click')
+    else
+      'No clicks'
+    end
+  end
+
+  def sizes
+    ['smaller', 'small', 'medium', 'big', 'bigger', 'huge', 'gigantic']    
+  end
+
+end

app/models/click.rb

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+class Click < ActiveRecord::Base
+  has_one :link
+end

app/models/link.rb

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+class Link < ActiveRecord::Base
+  acts_as_list
+
+  has_many :clicks, :dependent => :destroy
+
+  before_create :set_clicks_to_zero
+
+  def last_click
+    updated_at
+  end
+
+  def total_clicks
+    self.clicks.size
+  end
+
+  protected
+  def set_clicks_to_zero
+    self.click_count = 0
+  end
+end

app/views/layouts/page.rhtml

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+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+  <head>
+    <title>dynamic start page</title>
+    <%= stylesheet_link_tag 'standard' %>
+    <%= javascript_include_tag :defaults %>
+  </head>
+  <body>
+    <div id="content">
+      <%= @content_for_layout %>
+    </div>
+  </body>
+</html>

app/views/page/_add_link.rhtml

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+<%= form_remote_tag :url => { :action => 'add_link' }, :update => 'link_cloud' %>
+  <p><strong>add a new link:</strong> <label for="link_text">text</label>: <%= text_field :link, :text, {:size => 50 } %> <label for="link_url">url</label>: <%= text_field :link, :url, {:size => 50, :value => 'http://' } %> <%= submit_tag "add link" %></p>
+</form>

app/views/page/_link.rhtml

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+<div id="link_<%=link.id%>" style="float:left;">
+  <%= link_to(link.text, click_url(:id => link, :text => link.text.gsub(/[^\w]+/,'-')), {:class => "link #{sizes[(link.click_count - @min) / @divisor]}", :title => link_title_text(link) }) %>
+<span class="link_editor" id="link_editor_<%=link.id%>" style="display:none;"> 
+  <%= link_to_remote('remove link', 
+      	:url => {:action => 'remove_link', :id => link}, 
+      	:update => :none,
+		 		:confirm => "#{link.text}\n\nRemove this link?",
+      	:before => "Effect.Fade($('link_#{link.id}'), {duration: 0.5} );") %>
+</span></div>

app/views/page/_link_cloud.rhtml

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+<%= generate_link_cloud  %>

app/views/page/home.rhtml

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+<div id="link_cloud"><%= render :partial => 'link', :collection => @links %></div>
+
+<div id="helpers">
+  <div style="padding: 0 5px;">
+	  <p style="float:right"><%= link_to_function 'show link modifiers', 
+	    "objs = document.getElementsByClassName('link_editor'); for(i = 0; i < objs.length; i++){Element.toggle(objs[i].id);}"%>
+	  </p>
+  <%= render :partial => 'add_link' %>
+</div>
+</div>