seeden/rbac

Now its working. But I have an issue if I want to use existing db. Here is my code

var db = mongoose.connect(config.db, function(err) {
            if (err) {
                // 
            }
            var storage = new RBAC.Storage.Mongoose({
                         connection: db.connection
                 });

                 var rbac = new RBAC(storage);
});

If I use this rbac to create roles and permissions as

rbac.create(roles, permissionsAsObject, function(err, data) {
        if(err) {
            throw err;
        }

    });

It throws exception.
Note: In your test, you have created new db.