Kombinace and a or operatoru

Ahoj,

resim takovy delikatni problem, s kterym si nevim rady

mam dve pole s where podminkami

$filter[] = [["[first_app_user_id]>%i",0],["[reason]=%i",6]];
$filter[] = [["[first_app_user_id]>%i",0],["[from_1] IN (%i)",[1,2,3,4,5,6]]];

pole si posilam do metody, kde je pridam k datasource

public function ticketsDataSource($where=[])
{
  $dataSource = $this->db->dataSource("SELECT * FROM [table] ORDER BY [date] DESC");

  forEach($where as $conditions)
  {
    $dataSource->where("%and",$conditions);
  }

  return $dataSource;
}

Kdyz pouziju modifikator %and, tak se mi to prevede na cond11 AND cond12 AND cond21 AND cond22
Kdyz pouziji modifikator (%and) tak se to prevede na (cond11 AND cond12) AND (cond21 AND cond22)
Kdyz pouziji modifikator %or tak se mi to prevede na (cond11 OR cond12) AND (cond21 OR cond22)

ale nenapada me, co udelat proto, aby podminka vypadala takto (cond11 AND cond12) OR (cond21 AND cond22)