Storm\Drivers\Base\Relational\Traits\ForeignKey::ParentKey PHP Method

    public final function ParentKey(array $Data = [])
    {
        if ($this->ParentRow === null) {
            $this->ParentRow = new Relational\ResultRow($this->ParentColumnIdentifierMap);
        }
        return $this->ParentRow->Another($Data);
    }

 /**
  * @return Relational\ResultRow
  */
 protected function MapParentRowToRelatedKey(ForeignKey $ForeignKey, Relational\ResultRow $ParentRow)
 {
     if ($this->IsInversed) {
         $ParentKey = $ForeignKey->ParentKey();
         $ForeignKey->MapReferencedToParentKey($ParentRow, $ParentKey);
         return $ParentKey;
     } else {
         $ReferencedKey = $ForeignKey->ReferencedKey();
         $ForeignKey->MapParentToReferencedKey($ParentRow, $ReferencedKey);
         return $ReferencedKey;
     }
 }