Added redirect_to :back as a short-hand for redirect_to(request.env["HTTP_REFERER"])

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2848 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 6 insertions, 0 deletions

diff --git a/actionpack/lib/action_controller/base.rb b/actionpack/lib/action_controller/base.rb
index 7c2f7239fa..07b9b443d2 100755
--- a/actionpack/lib/action_controller/base.rb
+++ b/actionpack/lib/action_controller/base.rb
@@ -727,11 +727,14 @@ module ActionController #:nodoc:
       # * <tt>Hash</tt>: The URL will be generated by calling url_for with the +options+.
       # * <tt>String starting with protocol:// (like http://)</tt>: Is passed straight through as the target for redirection.
       # * <tt>String not containing a protocol</tt>: The current current protocol and host is prepended to the string.
+      # * <tt>:back</tt>: 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.
       def redirect_to(options = {}, *parameters_for_method_reference) #:doc:
@@ -745,6 +748,9 @@ module ActionController #:nodoc:
 
           when String
             redirect_to(request.protocol + request.host_with_port + options)
+          
+          when :back
+            redirect_to(request.env["HTTP_REFERER"])
 
           else
             if parameters_for_method_reference.empty?