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ActiveScaffold is a plugin for Ruby on Rails (also known as Rails) that provides dynamic model-based view generation. Instead of having to create pages by hand that display your models, ActiveScaffold will introspect your ActiveRecord models and dynamically generate a CRUD (create, read, update, delete) user interface for managing those objects.

Installing ActiveScaffold

As ActiveScaffold is a Rails plugin, you can install it from a remote Web or Subversion server. The command below will check out the ActiveScaffold plugin from the ActiveScaffold Subversion server.

Install the latest version of the plugin:

script/plugin install http://activescaffold.googlecode.com/svn/tags/active_scaffold

Add this to your layout:

<%= javascript_include_tag :defaults %>
<%= active_scaffold_includes %>

Add this to your controller:

active_scaffold :<your_model_name>

for example:

class UsersController < ApplicationController
  active_scaffold :user
end

That’s it! Your first ActiveScaffold is up and running.

The Model

Most modern Web application frameworks are based on the MVC (model, view, controller) pattern, and Rails is no different. The model represents the data stored in the database with each table having a corresponding ActiveRecord model class in Ruby.

class User < ActiveRecord::Base
   belongs_to  rganization
end
class Organization < ActiveRecord::Base
  has_many :projects
  has_many :users
end
class Project < ActiveRecord::Base
  belongs_to  rganization
  has_many :projects_users
  has_many :administrators, :through => :projects_users, :source => :user,
           :conditions => "projects_users.role_type = 3"
  has_many :managers, :through => :projects_users, :source => :user,
           :conditions => "projects_users.role_type = 2"
  has_many :workers, :through => :projects_users, :source => :user,
           :conditions => "projects_users.role_type = 1"
end
class ProjectsUser < ActiveRecord::Base
  belongs_to :project
  belongs_to :user
end

Visit ActiveScaffold home page to find out more!

P.S.: Happy New Year from AdaRuby.com crew (Hendy & Eka)!

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This entry was posted on Tuesday, January 1st, 2008 at 7:33 am and is filed under Cool, GUI, Plugins, Rails, Ruby, Tips, Tools, Web 2.0. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.