public HomeController(SchoolContext schoolContext)
 {
     db = schoolContext;
 }
 public DepartmentController (SchoolContext schoolContext)
 {
     db = schoolContext;
 }
 public StudentController(SchoolContext schoolContext)
 {
     db = schoolContext;
 }
 public InstructorController(SchoolContext schoolContext)
 {
     db = schoolContext;
 }
 public CourseController(SchoolContext schoolContext)
 {
     db = schoolContext;
 }