Question

I am reading “Pragmatic Agile Web Development with Rails (2th ed)” and trying examples from this book. But when I am trying one of examples I have got error.

So:

• I have created a model for a product

  ruby script/generate model product
  

  Filled the fields:

  class CreateProducts < ActiveRecord::Migration
   def self.up
     create_table :products do |t|
       t.column :title, :string
       t.column :description, :text
       t.column :image_url, :string
     end
   end
  
   def self.down
    drop_table :products
   end
  end
  

  Generated the DB:

  rake db:migrate
  

• Next I have creaded the view:

  ruby script/generate controller admin
  

  Added line to the view:

  class AdminController < ApplicationController
    scaffold :product
  end
  

  • Have runned the server and have got error:

    http://localhost:3000/admin

    undefined method `scaffold' for AdminController:Class
    

I have googled and found this solution:

ruby script/generate scaffold product title:string description:text image_url:string

But I am not sure that it is a right way. What is the ‘true way’ to create a view for the product table ?

Answer 1

scaffold method has been removed from Rails since about 2.0 version. Since that time, one should use the generator for scaffolding.