public function getSales()
 {
     $str = parent::getSales();
     if ($str) {
         $p = '/(\\d+)/';
         preg_match($p, $str, $out);
         $this->_sales = isset($out[1]) ? $out[1] : 0;
     }
     return $this->_sales;
 }
 public function getSales()
 {
     $str = parent::getSales();
     $this->_sales = intval($str);
     return $this->_sales;
 }
 public function getSales()
 {
     $arr = parent::getSales();
     $this->_sales = "";
     if ($arr) {
         $this->_sales = count($arr);
     } else {
         $this->_sales = "";
     }
     return $this->_sales;
 }