public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Instructor instructor = await _context.Instructors
.Include(i => i.CourseAssignments)
.SingleAsync(i => i.ID == id);
if (instructor == null)
{
return(RedirectToPage("./Index"));
}
var departments = await _context.Departments
.Where(d => d.InstructorID == id)
.ToListAsync();
departments.ForEach(d => d.InstructorID = null);
_context.Instructors.Remove(instructor);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
// To protect from overposting attacks, enable the specific properties you want to bind to.
// For more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
var courseToUpdate = await _context.Courses.FindAsync(id);
if (courseToUpdate == null)
{
return(NotFound());
}
if (await TryUpdateModelAsync <Course>(
courseToUpdate,
"course", // Prefix for form value.
c => c.Credits, c => c.DepartmentID, c => c.Title))
{
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
// Select DepartmentID if TryUpdateModelAsync fails.
PopulateDepartmentsDropDownList(_context, courseToUpdate.DepartmentID);
return(Page());
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Student = await _context.Students.FindAsync(id);
if (Student == null)
{
return(NotFound());
}
try
{
_context.Students.Remove(Student);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
catch (DbUpdateException)
{
return(RedirectToAction("./Delete", new { id, saveChangesError = true }));
}
}
// To protect from overposting attacks, enable the specific properties you want to bind to.
// For more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Attach(Department).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!DepartmentExists(Department.DepartmentID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToPage("./Index"));
}
// To protect from overposting attacks, see https://aka.ms/RazorPagesCRUD
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Departments.Add(Department);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Department = await _context.Departments.FindAsync(id);
if (Department != null)
{
_context.Departments.Remove(Department);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}
// To protect from overposting attacks, see https://aka.ms/RazorPagesCRUD
public async Task <IActionResult> OnPostAsync()
{
var emptyStudent = new Student();
if (await TryUpdateModelAsync <Student>(
emptyStudent,
"student", // Prefix for form value.
s => s.LastName, s => s.FirstName, s => s.EnrollmentDate))
{
_context.Students.Add(emptyStudent);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
return(Page());
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Course = await _context.Courses.FindAsync(id);
if (Course != null)
{
_context.Courses.Remove(Course);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}
// To protect from overposting attacks, see https://aka.ms/RazorPagesCRUD
public async Task <IActionResult> OnPostAsync()
{
var emptyCourse = new Course();
if (await TryUpdateModelAsync <Course>(
emptyCourse,
"course", // Prefix for form value.
s => s.CourseID, s => s.DepartmentID, s => s.Title, s => s.Credits))
{
_context.Courses.Add(emptyCourse);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
// Select DepartmentID if TryUpdateModelAsync fails.
PopulateDepartmentsDropDownList(_context, emptyCourse.DepartmentID);
return(Page());
}
// To protect from overposting attacks, enable the specific properties you want to bind to.
// For more details, see https://aka.ms/RazorPagesCRUD.
public async Task <IActionResult> OnPostAsync(int?id, string[] selectedCourses)
{
if (id == null)
{
return(NotFound());
}
var instructorToUpdate = await _context.Instructors
.Include(i => i.OfficeAssignment)
.Include(i => i.CourseAssignments)
.ThenInclude(i => i.Course)
.FirstOrDefaultAsync(s => s.ID == id);
if (instructorToUpdate == null)
{
return(NotFound());
}
if (await TryUpdateModelAsync <Instructor>(
instructorToUpdate,
"Instructor",
i => i.FirstName, i => i.LastName,
i => i.HireDate, i => i.OfficeAssignment))
{
if (String.IsNullOrWhiteSpace(
instructorToUpdate.OfficeAssignment?.Location))
{
instructorToUpdate.OfficeAssignment = null;
}
UpdateInstructorCourses(_context, selectedCourses, instructorToUpdate);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
UpdateInstructorCourses(_context, selectedCourses, instructorToUpdate);
PopulateAssignedCourseData(_context, instructorToUpdate);
return(Page());
}
