public function modifyElementsQuery(DbCommand $query, $value)
{
if ($value == 'not :empty:') {
$value = ':notempty:';
}
if ($value == ':notempty:' || $value == ':empty:') {
$alias = 'neoblocks_' . $this->model->handle;
$operator = $value == ':notempty:' ? '!=' : '=';
$query->andWhere("(select count({$alias}.id) from {{neoblocks}} {$alias} where {$alias}.ownerId = elements.id and {$alias}.fieldId = :fieldId) {$operator} 0", [':fieldId' => $this->model->id]);
}
return $value !== null ? false : null;
}