[mSearch] Производитель +фильтрация товаров в MS2

modx.pro/help/1258/#comment-10843

&includeMSList=`price,new,favorite,popular,size,color,vendor:extra_filter_vendor`

<form action="[[~[[*id]]]]" method="post" id="mFilter">
  [[!mFilter?
    &resources=`[[!getCatIds]]`
    &includeTVs=`0`
    &includeMS=`1`
    &includeMSList=`price,new,favorite,popular,size,color,<b>vendor:vendor_extra_filter</b>`
    &sortFilters=`ms_new,ms_favorite,ms_popular,ms_size,ms_color,ms_price`
    &tpl=`tpl.msProducts.row`
  ]]
</form>

$ids = $scriptProperties['ids'];
$param = $scriptProperties['param'];
if (empty($ids) || empty($param)) {return false;}

$q = $modx->newQuery('msVendor');
$q->leftJoin('msProductData', 'Data', 'Data.vendor = msVendor.id');
$q->select('Data.id,msVendor.name');
$q->where(array('Data.id:IN' => $ids));

if ($q->prepare() && $q->stmt->execute()) {
	$res = $q->stmt->fetchAll(PDO::FETCH_ASSOC);
	$arr = array(
		'name' => 'Производитель'
		,'type' => 'text'
		,'values' => array()
	);
	foreach ($res as $v) {
		$arr['values'][$v['name']][] = $v['id'];
	}
	return json_encode($arr);
}