t.Errorf("failed to update with named arg")
	}

	AssertEqual(t, result4, namedUser)

	if err := DB.Exec("UPDATE named_users SET name1 = @name, name2 = @name2, name3 = @name", sql.Named("name", "jinzhu-new"), sql.Named("name2", "jinzhu-new2")).Error; err != nil {
		t.Errorf("failed to update with named arg")
	}

	namedUser.Name1 = "jinzhu-new"
	namedUser.Name2 = "jinzhu-new2"

			var v interface{} = callbacks.Create()
			callMethod := func(s interface{}, name string, args ...interface{}) {
				var argValues []reflect.Value
				for _, arg := range args {
					argValues = append(argValues, reflect.ValueOf(arg))
				}

				results := reflect.ValueOf(s).MethodByName(name).Call(argValues)
				if len(results) > 0 {
					v = results[0].Interface()
				}
			}