lets work_packages_controller be less planning_element specific

app/controllers/work_packages_controller.rb

@@ -17,7 +17,7 @@ class WorkPackagesController < ApplicationController
   include ExtendedHTTP
 
   menu_item :planning_elements
-  model_object PlanningElement
+  model_object WorkPackage
 
   before_filter :disable_api
   before_filter :find_model_object_and_project,
@@ -42,7 +42,7 @@ class WorkPackagesController < ApplicationController
   def work_package
     @work_package ||= begin
 
-      wp = PlanningElement.includes(:project)
+      wp = WorkPackage.includes(:project)
                       .find_by_id(params[:id])
 
       wp && wp.visible?(current_user) ?

spec/controllers/work_packages_controller_spec.rb

@@ -103,10 +103,6 @@ describe WorkPackagesController do
           get 'show', :id => planning_element.id
         end
 
-        it 'assigns the planning_element' do
-          assigns(:planning_element).should == planning_element
-        end
-
         it 'renders the show builder template' do
           response.should render_template('work_packages/show', :formats => ["html"], :layout => :base)
         end