// GET: Courses/Delete/courseId
// returns delete view with confirmation of the course being deleted
public ActionResult Delete(int?courseId)
{
if (courseId == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
var id = (int)courseId;
Course course = CourseHelper.GetById(id);
if (course == null)
{
return(HttpNotFound());
}
var isSupervisor = SupervisorHelper.IsUserSupervisor(CurrentWebContext.CurrentUser.UserID, id);
if (!isSupervisor)
{
return(new HttpStatusCodeResult(HttpStatusCode.Forbidden));
}
ViewBag.Title = course.CourseName;
var success = course.Delete();
ViewBag.Success = success;
return(View());
}
// GET: Courses/Edit/courseId
// returns edit view where a teacher can modify the course's data
public ActionResult Edit(int?courseId)
{
if (courseId == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
int id = (int)courseId;
Course course = CourseHelper.GetById(id);
if (course == null)
{
return(HttpNotFound());
}
// check if the user trying to access the course is a supervisor
var supervisors = SupervisorHelper.GetSupervisorsForCourse(id);
// if he isn't, then return him => denied
if (!supervisors.Any(x => x.UserID == CurrentWebContext.CurrentUser.UserID))
{
return(new HttpStatusCodeResult(HttpStatusCode.Forbidden));
}
// create the viewmodel
var viewModel = DetailedCourseVM.CreateDetailedCourseVMW(course, supervisors);
ViewBag.CountOfPendingStudents = ParticipantHelper.GetCountOfPendingParticipants(id);
return(View(viewModel));
}
public static DetailedCourseVM CreateDetailedCourseVMW(Course course)
{
var vm = new DetailedCourseVM(course)
{
Supervisors = SupervisorHelper.GetSupervisorsForCourse(course.CourseID),
Lectures = LectureHelper.GetLecturesForCourse(course.CourseID),
Participants = UserHelper.GetParticipantsForCourse(course.CourseID)
};
return(vm);
}
// GET: Courses/SeeDetailedOverview/courseId&studentId
// returns detailed overviev view for the specified student and targeted course
public ActionResult SeeDetailedOverview(int courseId, int studentId)
{
Course course = CourseHelper.GetById(courseId);
User student = UserHelper.GetById(studentId);
if (course == null || student == null)
{
return(HttpNotFound());
}
var isSupervisor = SupervisorHelper.IsUserSupervisor(CurrentWebContext.CurrentUser.UserID, courseId);
if (!isSupervisor)
{
return(new HttpStatusCodeResult(HttpStatusCode.Forbidden));
}
ViewBag.AttendancePerformance = ParticipantHelper.GetParticipantAttendance(student.UserID, course.CourseID);
var vm = DetailedOverviewForStudentVM.CreateDetailedOverviewForStudentVM(student, course);
return(View(vm));
}
public void DeleteSupervisor(int userId, int courseId)
{
SupervisorHelper.DeleteSupervisor(userId, courseId);
}
