spatialite sqilte dbal

<?php

namespace AppBundle\Doctrine\DBAL\Driver\Sqlite;

use Exception;
use Jsor\DBAL\Driver\Sqlite3\Connection;
use Jsor\DBAL\Driver\Sqlite3\Driver as BaseDriver;

class Driver extends BaseDriver
{
    /**
     * @var array
     */
    protected $_userDefinedExtensions = [
        'mod_spatialite.so',
    ];

    /**
     * Tries to establish a database connection to SQLite.
     *
     * @param  array      $params
     * @param  string     $username
     * @param  string     $password
     * @param  array      $driverOptions
     * @return Connection
     */
    public function connect(array $params, $username = null, $password = null, array $driverOptions = [])
    {
        if (isset($driverOptions['userDefinedFunctions'])) {
            $this->_userDefinedFunctions = array_merge(
                $this->_userDefinedFunctions, $driverOptions['userDefinedFunctions']);
        }

        if (isset($driverOptions['userDefinedExtensions'])) {
            $this->_userDefinedExtensions = array_merge(
                $this->_userDefinedExtensions,
                $driverOptions['userDefinedExtensions']
            );
        }

        if (isset($params['path'])) {
            $filename = $params['path'];
        } elseif (isset($params['dbname'])) {
            $filename = $params['dbname'];
        } elseif (isset($params['memory'])) {
            $filename = ':memory:';
        } else {
            throw new Exception('Either a dbname, path or a memory entry is required in $params');
        }

        $connection = new Connection(
            $filename,
            isset($params['flags']) ? $params['flags'] : null,
            isset($params['encryptionKey']) ? $params['encryptionKey'] : null,
            isset($params['busyTimeout']) ? $params['busyTimeout'] : null,
            $this->_userDefinedFunctions,
            $this->_userDefinedExtensions
        );

        return $connection;
    }
}