class ActionController::Metal

other features you can bring into your metal controller.
You can refer to the modules included in ActionController::Base to see
== Other Helpers
end
end
redirect_to root_url
def index
include Rails.application.routes.url_helpers
include ActionController::Redirecting
class HelloController < ActionController::Metal
To add redirection helpers to your metal controller, do the following:
== Redirection Helpers
end
end
render “hello/index”
def index
append_view_path “#{Rails.root}/app/views”
include ActionController::Rendering
class HelloController < ActionController::Metal
can do the following:
add the render helpers you’re used to having in a normal controller, you
response_body=, content_type=, and status=. To
views, partials, or other responses aside from explicitly calling of
ActionController::Metal by default provides no utilities for rendering
== Rendering Helpers
router to dispatch to.
The action method returns a valid Rack application for the Rails
match ‘hello’, :to => HelloController.action(:index)
something like this to config/routes.rb:
And then to route requests to your metal controller, you would add
end
end
self.response_body = “Hello World!”
def index
class HelloController < ActionController::Metal
A sample metal controller might look like this:
ActionController::Base.
valid Rack interface without the additional niceties provided by
ActionController::Metal is the simplest possible controller, providing a

def self.action(name, klass = ActionDispatch::Request)

* proc - A rack application
==== Returns

* action - An action name
==== Parameters

for the same action.
multiple calls into MyController.action will return the same object
Return a rack endpoint for the given action. Memoize the endpoint, so

def self.action(name, klass = ActionDispatch::Request)
  middleware_stack.build(name.to_s) do |env|
    new.dispatch(name, klass.new(env))
  end
end

def self.call(env)

the given env's action_dispatch.request.path_parameters key.
Makes the controller a rack endpoint that points to the action in

def self.call(env)
  action(env['action_dispatch.request.path_parameters'][:action]).call(env)
end

def self.controller_name

* string
==== Returns

Namespaces are left out, so Admin::PostsController returns posts as well.
Controller. For instance, PostsController returns posts.
Returns the last part of the controller's name, underscored, without the ending

def self.controller_name
  @controller_name ||= self.name.demodulize.sub(/Controller$/, '').underscore
end

def self.inherited(base) #nodoc:

nodoc:

def self.inherited(base) #nodoc:
  base.middleware_stack = self.middleware_stack.dup
  super
end

def self.middleware

Alias for middleware_stack

def self.middleware
  middleware_stack
end

def self.use(*args, &block)

Adds given middleware class and its args to bottom of middleware_stack

def self.use(*args, &block)
  middleware_stack.use(*args, &block)
end

def content_type

def content_type
  headers["Content-Type"]
end

def content_type=(type)

def content_type=(type)
  headers["Content-Type"] = type.to_s
end

def controller_name

Delegates to the class' controller_name

def controller_name
  self.class.controller_name
end

def dispatch(name, request) #:nodoc:

:nodoc:

def dispatch(name, request) #:nodoc:
  @_request = request
  @_env = request.env
  @_env['action_controller.instance'] = self
  process(name)
  to_a
end

def env

def env
  @_env ||= {}
end

def initialize

def initialize
  @_headers = {"Content-Type" => "text/html"}
  @_status = 200
  @_request = nil
  @_response = nil
  @_routes = nil
  super
end

def location

def location
  headers["Location"]
end

def location=(url)

def location=(url)
  headers["Location"] = url
end

def params

def params
  @_params ||= request.parameters
end

def params=(val)

def params=(val)
  @_params = val
end

def performed?

def performed?
  response_body
end

def response_body=(val)

def response_body=(val)
  body = if val.is_a?(String)
    [val]
  elsif val.nil? || val.respond_to?(:each)
    val
  else
    [val]
  end
  super body
end

def status

def status
  @_status
end

def status=(status)

def status=(status)
  @_status = Rack::Utils.status_code(status)
end

def to_a #:nodoc: