/**
* Create a couchdb connection.
*
* @param array $connectionData Connection information
*
* @return [type] [description]
*/
public function createConnection($connectionData)
{
//now we change the default values for the ones the user configured
$default_config = ['database' => '', 'host' => 'localhost', 'port' => 5984, 'username' => null, 'password' => null, 'ip' => null, 'ssl' => false, 'models_dir' => app_path(), 'lucene_handler_name' => '_fti', 'proxies_dir' => app_path() . 'storage' . DIRECTORY_SEPARATOR . 'proxies', 'keep-alive' => true, 'timeout' => '0.01', 'views_folder' => '../app/couchdb', 'viewsname' => 'couchsource'];
$config = array_replace_recursive($default_config, $connectionData);
$databaseName = $config['database'];
$documentPaths = array($config['models_dir']);
$httpClient = new \Doctrine\CouchDB\HTTP\SocketClient($config['host'], $config['port'], $config['username'], $config['password'], $config['ip'], $config['ssl']);
$httpClient->setOption('keep-alive', $config['keep-alive']);
$configManager = new \Doctrine\ODM\CouchDB\Configuration();
$this->metadataDriver = new AnnotationDriver(new AnnotationReader(), $documentPaths);
// registering noop annotation autoloader - allow all annotations by default
AnnotationRegistry::registerLoader('class_exists');
$configManager->setProxyDir($config['proxies_dir']);
$configManager->setMetadataDriverImpl($this->metadataDriver);
$configManager->setLuceneHandlerName($config['lucene_handler_name']);
$connection = new \Doctrine\CouchDB\CouchDBClient($httpClient, $databaseName);
$view = new FolderDesignDocument($config['views_folder']);
$connection->createDesignDocument($config['viewsname'], $view);
$this->dm = new \Doctrine\ODM\CouchDB\DocumentManager($connection, $configManager);
}