public ActionResult ManageCourses()
        {
            CourseServices     cs            = new CourseServices();
            UserServices       us            = new UserServices();
            List <CourseModel> courses       = new List <CourseModel>();
            HttpCookie         loggedStudent = Request.Cookies["LoggedUser"];
            StudentModel       student       = us.GetStudent(loggedStudent.Values.Get("Login"));

            courses = cs.GetCourses().Where(x => x.ClassId == student.IdKlasy).ToList();
            return(View(courses));
        }
        public ActionResult ManageCourses()
        {
            List <CourseModel> courses       = new List <CourseModel>();
            CourseServices     CourseServ    = new CourseServices();
            UserServices       UserServ      = new UserServices();
            HttpCookie         loggedTeacher = Request.Cookies["LoggedUser"];
            TeacherModel       teacher       = UserServ.GetTeacher(loggedTeacher.Values.Get("Login"));

            courses = CourseServ.GetCourses(teacher.IdNauczyciela);
            return(View(courses));
        }