Written by Katherine Giron Pe
on April 04, 2010

How to Install and Use Rails 3 Generators

This is why Rails3’s philosophy is agnosticism:

You can override default template engine (erb) through config/application.rb. So if you use HAML, running scaffold generator will create HAML files for the views. If you use Rspec for testing as most Ruby developers do, you may also specify rspec as the default test framework.

#Configure generators values. Many other options are available, be sure to check the documentation.
config.generators do |g|
  g.template_engine :haml
  g.test_framework :rspec, :fixture => true, :views => false
end

I think the right repository for the Rails 3 generators is the one maintained by Andre Arko of Engine Yard.

cd yourapp
git clone git://github.com/indirect/rails3-generators.git lib/generators

Blog app basics:

script/rails generate scaffold post title:string body:text published:boolean

Update:

To install the Rails 3 generators. Add this on your Gemfile:

gem 'rails3-generators'

This gem adds more generators for you.

rails g 

ActiveRecord:
  active_record:devise

ActsAsTaggableOn:
  acts_as_taggable_on:migration

Authlogic:
  authlogic:session

Cucumber:
  cucumber:feature
  cucumber:install

Devise:
  devise
  devise:install
  devise:views

EmailSpec:
  email_spec:steps

Formtastic:
  formtastic:form
  formtastic:install

FriendlyId:
  friendly_id

Jquery:
  jquery:install

Koala:
  koala:install

MongoMapper:
  mongo_mapper:install

Mongoid:
  mongoid:devise
  mongoid:install

Mustache:
  mustache:install

Paperclip:
  paperclip

Rspec:
  rspec:install

Without RSpec, you could just use the following:

config.generators do |g|
  g.template_engine :haml
end

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