public function find($id)
 {
     $result = $this->getDbTable()->find($id);
     if (0 == count($result)) {
         return;
     }
     $row = $result->current();
     $category = new Application_Model_Category();
     $category->setId($row->id);
     $category->setName($row->name);
     return $category;
 }