Helper::productSourceFilter

static function productSourceFilter($value, &$filter, $extraCallbackParams = [])
{
	if ($filter['NO_PURCHASES'] || $filter['=COMPANY.PRODUCT_ID'] || $filter['=CONTACT.PRODUCT_ID'])
	{
		if (!is_array($value) || in_array("", $value)) // if PRODUCT_SOURCE wasn't set or has "everywhere" value
		{
			$value = [];
		}
		$filter['PRODUCT_SOURCE'] = $value;
	}
}