Creates a new connection based on the given connection options and registers it in the manager.
Connection won't be established, you'll need to manually call connect method to establish connection.
Gets registered connection with the given name.
If connection name is not given then it will get a default connection.
Throws error if connection with the given name was not found.
ConnectionManager is used to store and manage multiple orm connections. It also provides useful factory methods to simplify connection creation.
已被弃用