instance method
redirect_to
Ruby on Rails 3.1.12
Since v3.0.20Signature
redirect_to(options = {}, response_status = {})
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 theoptions. -
Record- The URL will be generated by calling url_for with theoptions, which will reference a named URL for that record. -
Stringstarting withprotocol://(likehttp://) - Is passed straight through as the target for redirection. -
Stringnot containing a protocol - The current protocol and host is prepended to the string. -
Proc- A block that will be executed in the controller’s context. Should return any option accepted byredirect_to. -
:back- Back to the page that issued the request. Useful for forms that are triggered from multiple places. Short-hand forredirect_to(request.env["HTTP_REFERER"])
Examples:
redirect_to :action => "show", :id => 5 redirect_to post redirect_to "http://www.rubyonrails.org" redirect_to "/images/screenshot.jpg" redirect_to articles_url redirect_to :back redirect_to proc { edit_post_url(@post) }
The redirection happens as a “302 Moved” header unless otherwise specified.
Examples:
redirect_to post_url(@post), :status => :found redirect_to :action=>'atom', :status => :moved_permanently redirect_to post_url(@post), :status => 301 redirect_to :action=>'atom', :status => 302
The status code can either be a standard HTTP Status code as an integer, or a symbol representing the downcased, underscored and symbolized description. Note that the status code must be a 3xx HTTP code, or redirection will not occur.
It is also possible to assign a flash message as part of the redirection. There are two special accessors for the commonly used flash names alert and notice as well as a general purpose flash bucket.
Examples:
redirect_to post_url(@post), :alert => "Watch it, mister!"
redirect_to post_url(@post), :status=> :found, :notice => "Pay attention to the road"
redirect_to post_url(@post), :status => 301, :flash => { :updated_post_id => @post.id }
redirect_to { :action=>'atom' }, :alert => "Something serious happened"
When using redirect_to :back, if there is no referrer, RedirectBackError will be raised. You may specify some fallback behavior for this case by rescuing RedirectBackError.
Parameters
-
optionsopt = {} -
response_statusopt = {}
Source
# File actionpack/lib/action_controller/metal/redirecting.rb, line 59
def redirect_to(options = {}, response_status = {}) #:doc:
raise ActionControllerError.new("Cannot redirect to nil!") if options.nil?
raise AbstractController::DoubleRenderError if response_body
self.status = _extract_redirect_to_status(options, response_status)
self.location = _compute_redirect_to_location(options)
self.response_body = "<html><body>You are being <a href=\"#{ERB::Util.h(location)}\">redirected</a>.</body></html>"
end
Defined in actionpack/lib/action_controller/metal/redirecting.rb line 59
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Defined in ActionController::Redirecting