public function find($id)
 {
     $result = $this->getDbTable()->find($id);
     if (0 == count($result)) {
         return;
     }
     $row = $result->current();
     $product = new Application_Model_Product();
     $product->setId($row->id);
     $product->setName($row->name);
     $product->setCategoryId($row->category_id);
     $product->setFile($row->file);
     $product->setImage($row->image);
     $product->setDescription($row->description);
     $product->setCurrency($row->currency_id, $row->price);
     return $product;
 }