public async Task <Unit> Handle(DeleteStudentCommand request, CancellationToken cancellationToken)
{
var entity = await _context.Students
.FindAsync(request.Id);
if (entity == null)
{
throw new NotFoundException(nameof(Student), request.Id);
}
_context.Students.Remove(entity);
await _context.SaveChangesAsync(cancellationToken);
return(Unit.Value);
}
public async Task <Unit> Handle(CreateStudentCommand request, CancellationToken cancellationToken)
{
var entity = new Student
{
Name = request.Name,
Surname = request.Surname,
Patronymic = request.Patronymic,
Gender = request.Gender.Value,
Nickname = request.Nickname
};
_context.Students.Add(entity);
await _context.SaveChangesAsync(cancellationToken);
return(Unit.Value);
}
public async Task <Unit> Handle(UpdateStudentCommand request, CancellationToken cancellationToken)
{
var entity = await _context.Students.SingleOrDefaultAsync(s => s.Id == request.Id, cancellationToken);
if (entity == null)
{
throw new NotFoundException(nameof(Student), request.Id);
}
entity.Name = request.Name;
entity.Surname = request.Surname;
entity.Patronymic = request.Patronymic;
entity.Gender = request.Gender.Value;
entity.Nickname = request.Nickname;
await _context.SaveChangesAsync(cancellationToken);
return(Unit.Value);
}