Nextras\Orm\Mapper\Dbal\RelationshipMapperManyHasMany::__construct PHP Method

    public function __construct(Connection $connection, DbalMapper $mapperOne, DbalMapper $mapperTwo, PropertyMetadata $metadata)
    {
        $this->connection = $connection;
        $this->mapperOne = $mapperOne;
        $this->mapperTwo = $mapperTwo;
        $this->metadata = $metadata;
        $parameters = $mapperOne->getManyHasManyParameters($metadata, $mapperTwo);
        $this->joinTable = $parameters[0];
        if ($this->metadata->relationship->isMain) {
            $this->targetRepository = $this->mapperTwo->getRepository();
            list($this->primaryKeyFrom, $this->primaryKeyTo) = $parameters[1];
        } else {
            $this->targetRepository = $this->mapperOne->getRepository();
            list($this->primaryKeyTo, $this->primaryKeyFrom) = $parameters[1];
        }
    }