diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index ecca5f67..357c7cf1 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -256,4 +256,12 @@ class ApplicationController < ActionController::Base
     @z_index_counter = 500
   end
 
+  def to_xml_params
+    if params[:limit_fields] == 'index'
+      return [:only => [:id, :created_at, :updated_at, :completed_at] ]
+    else
+      return [:except => :user_id, :include => [:tags, :predecessors, :successors] ]
+    end
+  end
+
 end
diff --git a/app/controllers/calendar_controller.rb b/app/controllers/calendar_controller.rb
index e9b952ca..53d2e82e 100644
--- a/app/controllers/calendar_controller.rb
+++ b/app/controllers/calendar_controller.rb
@@ -21,12 +21,4 @@ class CalendarController < ApplicationController
       }
     end
   end
-
-  def to_xml_params
-    if params[:limit_fields] == 'index'
-      return [:only => [:id, :created_at, :updated_at, :completed_at] ]
-    else
-      return [:except => :user_id, :include => [:tags, :predecessors, :successors] ]
-    end
-  end
 end
diff --git a/app/controllers/todos_controller.rb b/app/controllers/todos_controller.rb
index b490c045..afb82ab4 100644
--- a/app/controllers/todos_controller.rb
+++ b/app/controllers/todos_controller.rb
@@ -815,14 +815,6 @@ class TodosController < ApplicationController
     end
   end
 
-  def to_xml_params
-    if params[:limit_fields] == 'index'
-      return [:only => [:id, :created_at, :updated_at, :completed_at] ]
-    else
-      return [:except => :user_id, :include => [:tags, :predecessors, :successors] ]
-    end
-  end
-
   def get_todo_from_params
     # TODO: this was a :append_before but was removed to tune performance per
     # method. Reconsider re-enabling it