/**
* Initializes a new instance of the Connection class.
*
* @param array $params The connection parameters.
* @param Driver $driver
* @param Configuration $config
* @param EventManager $eventManager
*/
public function __construct(array $params, Driver $driver, Configuration $config = null, EventManager $eventManager = null)
{
$this->_driver = $driver;
$this->_params = $params;
if (isset($params['pdo'])) {
$this->_conn = $params['pdo'];
$this->_isConnected = true;
}
// Create default config and event manager if none given
if (!$config) {
$config = new Configuration();
}
if (!$eventManager) {
$eventManager = new EventManager();
}
$this->_config = $config;
$this->_eventManager = $eventManager;
$this->_platform = $driver->getDatabasePlatform();
$this->_transactionIsolationLevel = $this->_platform->getDefaultTransactionIsolationLevel();
$this->_quoteIdentifiers = $config->getQuoteIdentifiers();
$this->_platform->setQuoteIdentifiers($this->_quoteIdentifiers);
}