BaseGrid::prepareQuery

public function prepareQuery(Query $query): Query
{
	$runtimeFields = [];
	$filterParameters = $this->getQueryFilter($runtimeFields);
	$this->addToQueryFilterCase($query, $filterParameters);
	foreach ($runtimeFields as $runtime)
	{
		$query->registerRuntimeField($runtime);
	}

	$this->addPermissionsCheck($query);
	$query->addSelect('CURRENCY');

	return $query;
}