public async Task <IOperationResult <Subject> > RemoveSubject(int subjectId)
{
Subject subject = await _subjectRepository.Set.FindAsync(subjectId);
if (subject == null)
{
return(BasicOperationResult <Subject> .Fail("Subject not found"));
}
var tutorRelations = await _tutorSubjectRepository.FindAll(ts => ts.SubjectId == subjectId);
_tutorSubjectRepository.Set.RemoveRange(tutorRelations);
await _tutorSubjectRepository.Save();
_subjectRepository.Remove(subject);
await _subjectRepository.Save();
return(BasicOperationResult <Subject> .Ok(subject));
}
public async Task <IOperationResult <bool> > AssignSubjectToTutors(int tutorId, IEnumerable <int> subjectIds)
{
var tutor = await _userRepository.Find(u => u.Id == tutorId &&
u.UserRoles.Any(r => r.RoleId == (int)RoleTypes.Tutor),
u => u.UserRoles);
if (tutor == null)
{
return(BasicOperationResult <bool> .Fail("El tutor no fue encontrado"));
}
bool subjectExists = await CheckIfSubjectIdsExists(subjectIds);
if (!subjectExists)
{
return(BasicOperationResult <bool> .Fail("Revise que todas las materias que esta enviando, están registradas en el sistema"));
}
var tutorSubjects = await GetSubjectsForTutor(tutorId);
var tutorSubjectIds = tutorSubjects.Select(s => s.Id);
var idOfSubjectsToRemove = GetIdsThatHaveToBeRemoved(tutorSubjectIds, subjectIds);
var idsOfSubjectsToAdd = GetIdsThatHaveToBeAdded(tutorSubjectIds, subjectIds);
var tutorSubjecsToRemove = await _tutorSubjectRepository.FindAll(ts =>
idOfSubjectsToRemove.Contains(ts.SubjectId) && ts.TutorId == tutorId);
_tutorSubjectRepository.Set.RemoveRange(tutorSubjecsToRemove);
var tutorSubjectsToAdd = idsOfSubjectsToAdd.Select(id => new TutorSubject
{
SubjectId = id,
TutorId = tutorId
});
await _tutorSubjectRepository.Set.AddRangeAsync(tutorSubjectsToAdd);
await _tutorSubjectRepository.Save();
return(BasicOperationResult <bool> .Ok(true));
}