Fix referer params for welcome page

app/controllers/user_controller.rb

@@ -88,11 +88,18 @@ class UserController < ApplicationController
         if @user.save
           flash[:piwik_goal] = PIWIK_SIGNUP_GOAL if defined?(PIWIK_SIGNUP_GOAL)
 
+          referer = welcome_path
+
           begin
-            referer_params = Rack::Utils.parse_query(URI(session[:referer]).query)
-            referer = welcome_path(referer_params.slice(:lat, :lon, :zoom, :editor))
+            uri = URI(session[:referer])
+            /map=(.*)\/(.*)\/(.*)/.match(uri.fragment) do |m|
+              editor = Rack::Utils.parse_query(uri.query).slice('editor')
+              referer = welcome_path({'zoom' => m[1],
+                                      'lat' => m[2],
+                                      'lon' => m[3]}.merge(editor))
+            end
           rescue
-            referer = welcome_path
+            # Use default
           end
 
           if @user.status == "active"

test/functional/user_controller_test.rb

@@ -308,6 +308,16 @@ class UserControllerTest < ActionController::TestCase
     assert_select "form > fieldset > div.form-row > div.field_with_errors > input#user_display_name"
   end
 
+  def test_user_save_referer_params
+    user = new_user
+
+    post :save, {}, {:new_user => user,
+                     :referer => '/edit?editor=id#map=1/2/3'}
+
+    assert_equal welcome_path(:editor => 'id', :zoom => 1, :lat => 2, :lon => 3),
+                 user.tokens.first.referer
+  end
+
   def test_user_confirm_expired_token
     user = users(:inactive_user)
     token = user.tokens.new