Refactor: extract back_url method to ApplicationController.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3912 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/application_controller.rb

@@ -218,6 +218,10 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  def back_url
+    params[:back_url] || request.env['HTTP_REFERER']
+  end
+
   def redirect_back_or_default(default)
     back_url = CGI.unescape(params[:back_url].to_s)
     if !back_url.blank?

app/controllers/issues_controller.rb

@@ -349,7 +349,7 @@ class IssuesController < ApplicationController
     
     @priorities = IssuePriority.all.reverse
     @statuses = IssueStatus.find(:all, :order => 'position')
-    @back = params[:back_url] || request.env['HTTP_REFERER']
+    @back = back_url
     
     render :layout => false
   end