public IActionResult Add(int studentId, int courseId, [FromBody] MarksModel model)
{
var student = studentRepository.GetById(studentId);
if (student == null)
{
return(NotFound("Student does not exist."));
}
var course = courseRepository.GetById(model.CourseCode);
if (course == null)
{
return(NotFound("Course does not exist."));
}
var existingMark = marksRepository.Find(m => m.StudentId == model.StudentId && m.CourseCode == model.CourseCode).FirstOrDefault();
if (existingMark != null)
{
return(BadRequest("Student already has that mark entered."));
}
if (model.MarkValue < 6 || model.MarkValue > 10)
{
return(BadRequest("Invalid mark. Allowed values: 6 - 10"));
}
var mark = new Marks
{
StudentId = model.StudentId,
CourseCode = model.CourseCode,
MarkValue = model.MarkValue
};
marksRepository.Insert(mark);
marksRepository.Save();
return(CreatedAtRoute("GetMark", new { studentId = mark.StudentId, courseId = mark.CourseCode }, mark));
}