GridFieldOrderableRows::getSortTableClauseForIds PHP Method

    protected function getSortTableClauseForIds(DataList $list, $ids)
    {
        if (is_array($ids)) {
            $value = 'IN (' . implode(', ', array_map('intval', $ids)) . ')';
        } else {
            $value = '= ' . (int) $ids;
        }
        if ($list instanceof ManyManyList) {
            $extra = $list->getExtraFields();
            $key = $list->getLocalKey();
            $foreignKey = $list->getForeignKey();
            $foreignID = (int) $list->getForeignID();
            if ($extra && array_key_exists($this->getSortField(), $extra)) {
                return sprintf('"%s" %s AND "%s" = %d', $key, $value, $foreignKey, $foreignID);
            }
        }
        return "\"ID\" {$value}";
    }