Станислав

<?php

if(!class_exists('msOrderHandler')) {
    require_once dirname(dirname(dirname(__FILE__))) . '/model/minishop2/msorderhandler.class.php';
}

class myOrderHandler extends msOrderHandler {
  public function getNum()
    {
        $num = 0;
        $c = $this->modx->newQuery('msOrder');
        $c->select('num');
        $c->sortby('id', 'DESC');
        $c->limit(1);
        if ($c->prepare() && $c->stmt->execute()) {
            $num = $c->stmt->fetchColumn();
        }
        $num = $num + 1;

        return $num;
    }
}

Fatal error: Class 'msOrderHandler' not found in /core/components/minishop2/custom/cart/myOrderHandler.php on line 2

{
        $num = 0;
        $c = $this->modx->newQuery('msOrder');
        $c->select('num');
        $c->sortby('id', 'DESC');
        $c->limit(1);
        if ($c->prepare() && $c->stmt->execute()) {
            $num = $c->stmt->fetchColumn();
        }
        $num = $num + 1;

        return $num;
    }

public function getNum()
    {
        $cur = date('ym');
        $num = 0;
        $c = $this->modx->newQuery('msOrder');
        $c->where(array('num:LIKE' => "{$cur}%"));
        $c->select('num');
        $c->sortby('id', 'DESC');
        $c->limit(1);
        if ($c->prepare() && $c->stmt->execute()) {
            $num = $c->stmt->fetchColumn();
        }
        if (empty($num)) {
            $num = '2864';
        }
        $num = end($num) + 1;
        return $num;
    }