public EditMarkVm GetMarkForEdit(int id)
{
Mark mark = this.Context.Marks.FirstOrDefault(m => m.Id == id);
EditMarkVm vm = new EditMarkVm();
vm.Id = id;
vm.Value = mark.Value;
vm.SubjectName = mark.Subject.Name;
vm.StudentId = mark.Student.Id;
return(vm);
}
public void EditMark(EditMarkVm vm, int id)
{
Mark mark = this.Context.Marks.FirstOrDefault(m => m.Id == id);
Student student = this.Context.Students.FirstOrDefault(s => s.Id == vm.StudentId);
Subject subject = this.Context.Subjects.FirstOrDefault(s => s.Name == vm.SubjectName);
mark.Id = vm.Id;
mark.Subject = subject;
mark.Value = vm.Value;
mark.Student = student;
this.Context.Entry(mark).State = EntityState.Modified;
this.Context.SaveChanges();
}
public bool IsSubjectNameExists(EditMarkVm vm)
{
if (vm.SubjectName == null)
{
return(true);
}
Subject subject = this.Context.Subjects.FirstOrDefault(s => s.Name == vm.SubjectName);
if (subject == null)
{
return(false);
}
return(true);
}
public ActionResult EditMark(EditMarkVm vm, int id)
{
if (!this.service.IsSubjectNameExists(vm))
{
this.ModelState.AddModelError("SubjectName", "Subject must exist in School diary");
}
if (!this.service.IsStudentExists(vm.StudentId))
{
this.ModelState.AddModelError("Student", "Student must exist in School diary");
}
if (this.ModelState.IsValid)
{
this.service.EditMark(vm, id);
return(RedirectToAction("StudentMarks", "SchoolDiary", new { id = vm.StudentId }));
}
return(this.View(vm));
}
public ActionResult EditMark(int id)
{
EditMarkVm vm = this.service.GetMarkForEdit(id);
return(this.View(vm));
}
