生成和定制Rails生成器和模板 Creating and Customizing Rails Generators & Templates2

config.generators do |g|
g.orm :active_record
g.template_engine :erb
g.test_framework :shoulda, :fixture => false
g.stylesheets false
# Add a fallback!
g.fallbacks[:shoulda] = :test_unit
end

$ rails generate scaffold Comment body:text
invoke active_record
create db/migrate/20091120151323_create_comments.rb
create app/models/comment.rb
invoke shoulda
create test/unit/comment_test.rb
create test/fixtures/comments.yml
route map.resources :comments
invoke scaffold_controller
create app/controllers/comments_controller.rb
invoke erb
create app/views/comments
create app/views/comments/index.html.erb
create app/views/comments/edit.html.erb
create app/views/comments/show.html.erb
create app/views/comments/new.html.erb
create app/views/comments/_form.html.erb
create app/views/layouts/comments.html.erb
invoke shoulda
create test/functional/comments_controller_test.rb
invoke my_helper
create app/helpers/comments_helper.rb
invoke shoulda
create test/unit/helpers/comments_helper_test.rb

gem("rspec-rails", :group => "test")
gem("cucumber-rails", :group => "test")
if yes?("Would you like to install Devise?")
gem("devise")
generate("devise:install")
model_name = ask("What would you like the user model to be called? [user]")
model_name = "user" if model_name.blank?
generate("devise", model_name)
end

modify the outcome of the rails new command by using the -m option and passing in the filename:

$ rails new thud -m template.rb

$ rails new thud -mhttps://gist.github.com/722911.txt

plugin("dynamic-form", :git => "git://github.com/rails/dynamic-form.git")
Available options are:
? :git – Takes the path to the git repository where this plugin can be found.
? :branch – The name of the branch of the git repository where the plugin is found.
? :submodule – Set to true for the plugin to be installed as a submodule. Defaults to false.
? :svn – Takes the path to the svn repository where this plugin can be found.
? :revision – The revision of the plugin in an SVN repository.

gem("rspec", :group => "test", :version => "2.1.0")
gem("devise", "1.1.5")
Available options are:
? :group – The group in the Gemfile where this gem should go.
? :version – The version string of the gem you want to use. Can also be specified as the second argument to the method.
? :git – The URL to the git repository for this gem.
Any additional options passed to this method are put on the end of the line:
gem("devise", :git => "git://github.com/plataformatec/devise", :branch => "master")
The above code will put the following line into Gemfile:
gem "devise", :git => "git://github.com/plataformatec/devise", :branch => "master"

add_source "http://gems.github.com"

application "config.asset_host = 'http://example.com'"
This method can also take a block:
application do
"config.asset_host = 'http://example.com'"
end
Available options are:
? :env – Specify an environment for this configuration option. If you wish to use this option with the block syntax the recommended syntax is as follows:
application(nil, :env => "development") do
"config.asset_host = 'http://localhost:3000'"
end

git :init
git :add => "."
git :commit => "-m First commit!"
git :add => "onefile.rb", :rm => "badfile.cxx"
The values of the hash here being the arguments or options passed to the specific git command. As per the final example shown here, multiple git commands can be specified at a time, but the order of their running is not guaranteed to be the same as the order that they were specified in.

vendor("sekrit.rb", '#top secret stuff')
This method also takes a block:
vendor("seeds.rb") do
"puts 'in ur app, seeding ur database'"
end

lib("special.rb", 'p Rails.root')
This method also takes a block:
lib("super_special.rb") do
puts "Super special!"
end

rakefile("test.rake", 'hello there')
This method also takes a block:
rakefile("test.rake") do
%Q{
task :rock => :environment do
puts "Rockin'"
end
}
end

initializer("begin.rb", "puts 'this is the beginning'")
This method also takes a block:
initializer("begin.rb") do
puts "Almost done!"
end

generate("scaffold", "forums title:string description:text")

Runs the specified Rake task.
rake("db:migrate")
Available options are:
? :env – Specifies the environment in which to run this rake task.
? :sudo – Whether or not to run this task using sudo. Defaults to false.

route("resources :people")