method

redirect_to

v1.2.6 - Show latest stable - 6 notes - Class: ActionController::Base

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What's this?

redirect_to(options = {}, *parameters_for_method_reference) protected

Redirects the browser to the target specified in options. This parameter can take one of three forms:

Hash: The URL will be generated by calling url_for with the options.
String starting with protocol:// (like http://): Is passed straight through as the target for redirection.
String not containing a protocol: The current protocol and host is prepended to the string.
:back: Back to the page that issued the request. Useful for forms that are triggered from multiple places. Short-hand for redirect_to(request.env["HTTP_REFERER"])

Examples:

  redirect_to :action => "show", :id => 5
  redirect_to "http://www.rubyonrails.org"
  redirect_to "/images/screenshot.jpg"
  redirect_to :back

The redirection happens as a "302 Moved" header.

When using redirect_to :back, if there is no referrer, RedirectBackError will be raised. You may specify some fallback behavior for this case by rescueing RedirectBackError.

Show source

# File actionpack/lib/action_controller/base.rb, line 976
      def redirect_to(options = {}, *parameters_for_method_reference) #:doc:
        case options
          when %r{^\w+://.*}
            raise DoubleRenderError if performed?
            logger.info("Redirected to #{options}") if logger
            response.redirect(options)
            response.redirected_to = options
            @performed_redirect = true

          when String
            redirect_to(request.protocol + request.host_with_port + options)

          when :back
            request.env["HTTP_REFERER"] ? redirect_to(request.env["HTTP_REFERER"]) : raise(RedirectBackError)

          else
            if parameters_for_method_reference.empty?
              redirect_to(url_for(options))
              response.redirected_to = options
            else
              # TOOD: Deprecate me!
              redirect_to(url_for(options, *parameters_for_method_reference))
              response.redirected_to, response.redirected_to_method_params = options, parameters_for_method_reference
            end
        end
      end

March 10, 2012

3 thanks

flash messages

In rails 3.1 the following does not work for me

redirect_to { :action=>'atom' }, :alert => "Something serious happened"

Instead, you need to use the following syntax (wrap with parens)

redirect_to({ :action=>'atom' }, :alert => "Something serious happened")

January 8, 2010

1 thank

Status Codes

Full detail: http://en.wikipedia.org/wiki/List_of_HTTP_status_codes

100 - Continue
101 - Switching Protocols
200 - OK
201 - Created
202 - Accepted
203 - Non-Authoritative Information
204 - No Content
205 - Reset Content
206 - Partial Content
300 - Multiple Choices
301 - Moved Permanently
302 - Found
303 - See Other
304 - Not Modified
305 - Use Proxy
306 - No Longer Used
307 - Temporary Redirect
400 - Bad Request
401 - Not Authorised
402 - Payment Required
403 - Forbidden
404 - Not Found
405 - Method Not Allowed
406 - Not Acceptable
407 - Proxy Authentication Required
408 - Request Timeout
409 - Conflict
410 - Gone
411 - Length Required
412 - Precondition Failed
413 - Request Entity Too Large
414 - Request URI Too Long
415 - Unsupported Media Type
416 - Requested Range Not Satisfiable
417 - Expectation Failed
500 - Internal Server Error
501 - Not Implemented
502 - Bad Gateway
503 - Service Unavailable
504 - Gateway Timeout
505 - HTTP Version Not Supported

March 3, 2009

0 thanks

Specify controller

If needed, you can also specify a controller.

redirect_to :controller => 'post', :action => 'index'

October 1, 2009

0 thanks

This code prevent's frome redirect_to(:back) looping

Prevent redirect_to(:back) looop

begin

# loop check
if session[:last_back] != request.env['HTTP_REFERER']
  redirect_to(:back)
  session[:last_back] = request.env['HTTP_REFERER']
else
  # raise on error
  raise ActionController::RedirectBackError
end

rescue ActionController::RedirectBackError

# fallback on loop or other :back error
redirect_to(:action => :index)

end

November 30, 2009

0 thanks

You can specify the format as well

You can also specify the format (in case you need to redirect a request coming in one format to another format):

redirect_to :action => 'show', :format => 'html'

July 17, 2010

0 thanks

redirect_to :root

You can redirect to your main page using

redirect_to :root

Make sure to configure to root route first:

http://guides.rubyonrails.org/routing.html#using-maproot

redirect_to

Related methods

flash messages

Status Codes

Specify controller

This code prevent's frome redirect_to(:back) looping

Prevent redirect_to(:back) looop

You can specify the format as well

redirect_to :root