func SubmitFeedbackByTeacher(w http.ResponseWriter, r *http.Request, userId string, userType models.UserType) interface{} {
	reservationId := r.PostFormValue("reservation_id")
	teacherUsername := r.PostFormValue("teacher_username")
	teacherFullname := r.PostFormValue("teacher_fullname")
	studentFullname := r.PostFormValue("student_fullname")
	problem := r.PostFormValue("problem")
	solution := r.PostFormValue("solution")
	advice := r.PostFormValue("advice")

	var result = map[string]interface{}{"state": "SUCCESS"}
	var tl = buslogic.TeacherLogic{}

	_, err := tl.SubmitFeedbackByTeacher(reservationId, teacherFullname, teacherUsername, studentFullname,
		problem, solution, advice, userId, userType)
	if err != nil {
		ErrorHandler(w, r, err)
		return nil
	}

	return result
}