ManagedContext class

A service object that handles connecting to and sending queries to a database.

You create objects of this type to use the Conduit ORM. Create instances in ApplicationChannel.prepare and inject them into controllers that execute database queries.

A context contains two types of objects:

• PersistentStore : Maintains a connection to a specific database. Transfers data between your application and the database.
• ManagedDataModel : Contains information about the ManagedObject subclasses in your application.

Example usage:

    class Channel extends ApplicationChannel {
       ManagedContext context;

       @override
       Future prepare() async {
          var store = new PostgreSQLPersistentStore(...);
          var dataModel = new ManagedDataModel.fromCurrentMirrorSystem();
          context = new ManagedContext(dataModel, store);
       }

       @override
       Controller get entryPoint {
         final router = new Router();
         router.route("/path").link(() => new DBController(context));
         return router;
       }
    }