diff options
Diffstat (limited to 'actionpack/lib')
| -rw-r--r-- | actionpack/lib/action_controller/metal/redirecting.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/metal/redirecting.rb b/actionpack/lib/action_controller/metal/redirecting.rb index 0febc905f1..72ceb9a5bc 100644 --- a/actionpack/lib/action_controller/metal/redirecting.rb +++ b/actionpack/lib/action_controller/metal/redirecting.rb @@ -75,6 +75,29 @@ module ActionController self.response_body = "<html><body>You are being <a href=\"#{ERB::Util.unwrapped_html_escape(location)}\">redirected</a>.</body></html>" end + # Redirects the browser to the page that issued the request if possible, + # otherwise redirects to provided default fallback location. + # + # This avoids the <tt>ActionController::RedirectBackError</tt> that can + # occur if the request has no associated <tt>HTTP_REFERER</tt>. + # + # redirect_back fallback_location: { action: "show", id: 5 } + # redirect_back fallback_location: post + # redirect_back fallback_location: "http://www.rubyonrails.org" + # redirect_back fallback_location: "/images/screenshot.jpg" + # redirect_back fallback_location: articles_url + # redirect_back fallback_location: proc { edit_post_url(@post) } + # + # All options that can be passed to <tt>redirect_to</tt> are accepted as + # options and the behavior is indetical. + def redirect_back(fallback_location:, **args) + if referer = request.headers["Referer"] + redirect_to referer, **args + else + redirect_to fallback_location, **args + end + end + def _compute_redirect_to_location(request, options) #:nodoc: case options # The scheme name consist of a letter followed by any combination of |