/**
* Depending on the sorted column this will add orderBy to the builder.
*/
protected function addOrderBy()
{
if (static::$versionTransformer->isOrdered()) {
foreach (static::$versionTransformer->getOrderedColumns() as $index => $direction) {
if (isset($this->columnNames[$index])) {
$this->builder->orderBy($this->columnNames[$index], $direction);
}
}
}
}
