Storm\Drivers\Base\Relational\Relations\ToOneRelationBase::MapParentKeysToRelatedRow PHP Метод

    public final function MapParentKeysToRelatedRow(array $ParentRows, array $RelatedRows)
    {
        if (count($RelatedRows) === 0) {
            return [];
        }
        if (count($ParentRows) === 1) {
            return [key($ParentRows) => reset($RelatedRows)];
        } else {
            $MappedRelatedRows = [];
            $ForeignKey = $this->GetForeignKey();
            if ($this->IsInversed()) {
                $ParentRowColumns = $ForeignKey->GetReferencedColumns();
                $RelatedRowColumns = $ForeignKey->GetParentColumns();
            } else {
                $ParentRowColumns = $ForeignKey->GetParentColumns();
                $RelatedRowColumns = $ForeignKey->GetReferencedColumns();
            }
            $HashedParentRowToKeyMap = $this->MakeHashedDataToKeyMap($ParentRows, $ParentRowColumns);
            $KeyedRelatedRows = $this->IndexRowsByHashedColumnValues($RelatedRows, $RelatedRowColumns);
            foreach ($HashedParentRowToKeyMap as $HashedData => $ParentKey) {
                $MappedRelatedRows[$ParentKey] = isset($KeyedRelatedRows[$HashedData]) ? $KeyedRelatedRows[$HashedData] : null;
            }
            return $MappedRelatedRows;
        }
    }