public function load(ObjectManager $manager)
 {
     $users = array(array('firstname' => 'Adrien', 'lastname' => 'Manikon', 'initial' => 'AM'));
     foreach ($users as $userData) {
         $user = new User();
         $user->setFirstname($userData['firstname']);
         $user->setLastname($userData['lastname']);
         $user->setInitial($userData['initial']);
         $manager->persist($user);
     }
     $manager->flush();
 }
 private function prepareDataForRender($mainCategories, $subCategories, $subsubcategories, $users)
 {
     $noneCategory = new Category();
     $noneCategory->setName("Keine");
     $noneCategory->setParent($noneCategory);
     $noneUser = new User();
     $noneUser->setLastname("Keine");
     array_unshift($mainCategories, $noneCategory);
     array_unshift($subsubcategories, $noneCategory);
     array_unshift($users, $noneUser);
     return array('maincategories' => $this->buildCategoriesForView($mainCategories, "", "checked"), 'subcategories' => $subCategories, 'subsubcategories' => $this->buildCategoriesForView($subsubcategories, "default-select", "selected"), 'users' => $users);
 }