src/Soluble/Normalist/Synthetic/Table/Relation.php
public function getParent(Record $record, $parent_table)
    {
        if ($record->getState() == Record::STATE_DELETED) {
            throw new Exception\LogicException(__METHOD__ . ": Logic exception, cannot operate on record that was deleted");
        }

        $tableName = $this->table->getTableName();
        $relations = $this->table->getTableManager()->metadata()->getForeignKeys($tableName);
        //$rels = array();
        foreach ($relations as $column => $parent) {
            if ($parent['referenced_table'] == $parent_table) {
                // @todo, check the case when
                // table has many relations to the same parent
                // we'll have to throw an exception
                $record = $this->table->getTableManager()->table($parent_table)->findOneBy([
                    $parent['referenced_column'] => $record->offsetGet($column)
                ]);
                return $record;
            }
        }
        throw new Exception\RelationNotFoundException(__METHOD__ . ": Cannot find parent relation between table '$tableName' and '$parent_table'");
    }
public function getParent(Record $record, $parent_table)
    {
        if ($record->getState() == Record::STATE_DELETED) {
            throw new Exception\LogicException(__METHOD__ . ": Logic exception, cannot operate on record that was deleted");
        }

        $tableName = $this->table->getTableName();
        $relations = $this->table->getTableManager()->metadata()->getForeignKeys($tableName);
        //$rels = array();
        foreach ($relations as $column => $parent) {
            if ($parent['referenced_table'] == $parent_table) {
                // @todo, check the case when
                // table has many relations to the same parent
                // we'll have to throw an exception
                $record = $this->table->getTableManager()->table($parent_table)->findOneBy([
                    $parent['referenced_column'] => $record->offsetGet($column)
                ]);
                return $record;
            }
        }
        throw new Exception\RelationNotFoundException(__METHOD__ . ": Cannot find parent relation between table '$tableName' and '$parent_table'");
    }
Return parent record

@throws Exception\LogicException
@throws Exception\RelationNotFoundException

@param Record $record
@param string $parent_table
@return Record|false