public async Task <long> DeleteMovie([FromBody] GetItemrequest request)
{
int MoviID = 0;
var Remov = _context.Movies.FirstOrDefault(a => a.MovieId == request.id);
_context.Remove(Remov);
MoviID = _context.SaveChanges();
return(MoviID);
}
//This method updates the lecturer based on the selected course.
private void UpdateLecturerCourses(string[] selectedCourses, Lecturer instructorToUpdate)
{
/*
* If there are no checkboxes selected, this method will
* initializes the CourseAssignments navigation property with an empty collection and returns
*/
if (selectedCourses == null)
{
instructorToUpdate.CourseAssignments = new List <CourseAssignment>();
return;
}
var selectedCoursesHS = new HashSet <string>(selectedCourses);
var instructorCourses = new HashSet <int>
(instructorToUpdate.CourseAssignments.Select(c => c.Course.CourseID));
foreach (var course in _context.Courses)
{
if (selectedCoursesHS.Contains(course.CourseID.ToString()))
{
if (!instructorCourses.Contains(course.CourseID))
{
instructorToUpdate.CourseAssignments.Add(new CourseAssignment {
LecturerID = instructorToUpdate.ID, CourseID = course.CourseID
});
}
}
else
{
if (instructorCourses.Contains(course.CourseID))
{
CourseAssignment courseToRemove = instructorToUpdate.CourseAssignments.SingleOrDefault(i => i.CourseID == course.CourseID);
_context.Remove(courseToRemove);
}
}
}
}
public IActionResult DeleteStudent(int id)
{
context.Remove(context.Students.Where(s => s.StudentID == id).FirstOrDefault());
context.SaveChanges();
return(Ok());
}
public IActionResult DeleteCourse(int id)
{
context.Remove(context.Courses.Where(c => c.CourseID == id).FirstOrDefault());
context.SaveChanges();
return(Ok());
}
