bugfix: failover to database configuration values if no ability to get database from DSN

src/Jenssegers/Mongodb/Connection.php

@@ -41,7 +41,7 @@ class Connection extends BaseConnection
         $this->connection = $this->createConnection($dsn, $config, $options);
 
         // Select database
-        $this->db = $this->connection->selectDatabase($this->getDatabaseDsn($dsn));
+        $this->db = $this->connection->selectDatabase($this->getDatabaseDsn($dsn, $config['database']));
 
         $this->useDefaultPostProcessor();
 
@@ -190,7 +190,7 @@ class Connection extends BaseConnection
         }
 
         // Check if we want to authenticate against a specific database.
-        $auth_database = isset($config['database']) && !empty($config['database']) ? $config['database'] : null;
+        $auth_database = isset($config['options']) && !empty($config['options']['database']) ? $config['options']['database'] : null;
         return 'mongodb://' . implode(',', $hosts) . ($auth_database ? '/' . $auth_database : '');
     }
 
@@ -199,9 +199,10 @@ class Connection extends BaseConnection
      * @param string $dsn
      * @return string
      */
-    protected function getDatabaseDsn($dsn)
+    protected function getDatabaseDsn($dsn, $database)
     {
-        return trim(parse_url($dsn, PHP_URL_PATH), '/');
+        $dsnDatabase = trim(parse_url($dsn, PHP_URL_PATH), '/');
+        return $dsnDatabase?:$database;
     }
 
     /**