/**
* Returns edmsMongo connection instance if not exists will create new
*
* @return edmsMongo
* @throws EMongoException
* @since v1.0
*/
public function getMongo()
{
if (!isset(self::$_mongo)) {
try {
if (empty($this->dbName)) {
throw new EDMSException('No database configured');
}
//remove keys with null values
$options = array();
foreach ($this->options as $key => $value) {
if (isset($value)) {
$options[$key] = $value;
}
}
if (!isset($this->server)) {
$this->server = 'mongodb://localhost:27017';
}
self::$_mongo = new Mongo($this->server, $options);
} catch (MongoConnectionException $e) {
throw new EDMSException('Failed to create class edmsMongo: ' . $e->getMessage());
}
}
return self::$_mongo;
}
