andywenk

: rails s
=> Booting WEBrick
=> Rails 3.2.5 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2012-06-05 21:37:45] INFO  WEBrick 1.3.1
[2012-06-05 21:37:45] INFO  ruby 1.8.7 (2012-01-07) [java]
[2012-06-05 21:37:45] INFO  WEBrick::HTTPServer#start: pid=45665 port=3000
[2012-06-05 21:39:56] ERROR NoMethodError: undefined method `debug_rjs=' for ActionView::Base:Class
	org/jruby/RubyKernel.java:1955:in `send'

andywenk

require 'reek/rake/task'

Reek::Rake::Task.new do |t|
  t.source_files = "app/**/*.rb"
  t.verbose = true
  t.fail_on_error = false
end

namespace :analyzer do
  desc "run reek and find code smells"

andywenk

rails new active_admin_example
rake db:create
rails g controller products index
rails g model product name:string description:text price:float
rails g model user first_name:string last_name:string
rails g model order user_id:integer
rails g model order_item order_id:integer product_id:integer quantity:integer
rake db:migrate

andywenk

class User < ActiveRecord::Base
  has_many :orders
  attr_accessible :first_name, :last_name
end

class Order < ActiveRecord::Base
  belongs_to :user
  has_many :order_items
  attr_accessible :total, :user_id
end

andywenk

bundle install
rails generate active_admin:install
rake db:migrate
rails s

andywenk

rails generate active_admin:resource user
rails generate active_admin:resource product
rails generate active_admin:resource order
rails generate active_admin:resource order_item

andywenk

ActiveAdmin.register Order do
  form do |f|
    f.inputs do
      f.input :user_id,
              :as => :select,
              :collection => User.all.map{ |u| ["#{u.last_name}, #{u.first_name}", u.id] }
    end
    f.buttons
  end
end

andywenk

show do | order |
  attributes_table do
    row :id
    row :user_id do
      user = User.find(order.user_id)
      link_to("#{user.first_name} #{user.last_name}", admin_user_path(order.user_id))
    end

    row :created_at
    row :updated_at

andywenk

ActiveAdmin.register OrderItem do
  form do |f|
    f.inputs do
      f.input :order_id,
              :as => :select,
              :collection => Order.all.map { |order| order.id }
      f.input :product_id,
              :as => :select,
              :collection => Product.all.map { |product| [product.name, product.id] }
      f.input :quantity

andywenk

index do
  id_column
  column :order_id
  column :product_id do |item|
    Product.find(item.product_id).name
  end
  column :quantity
  column :created_at
  default_actions
end