// ReSharper disable once UnusedMember.Global
public void Delete(LessonDeleteRequest request)
{
Guard.IsTrue(id => 0 < id, request.Id);
Guard.AgainstEmpty(request.Provider);
Guard.AgainstEmpty(request.ProviderId);
var existingUser = UserHelpers.GetExistingUser(request, UserRepository);
Guard.IsTrue(eu => eu.IsNew == false, existingUser);
var lesson = LessonRepository.Find(request.Id);
if (lesson == null)
{
return;
}
if (existingUser.IsTeacher == false || request.Provider != lesson.Provider || request.ProviderId != lesson.ProviderId)
{
throw new HttpError(HttpStatusCode.Unauthorized, "Unauthorized");
}
if (lesson.IsDeleted)
{
return;
}
LessonRepository.DeleteLesson(request.Id);
}
// ReSharper disable once UnusedMember.Global
public void Delete(LessonDeleteRequest request)
{
Guard.IsTrue(lessonId => 0 < lessonId, request.LessonId);
Guard.AgainstEmpty(request.Provider);
Guard.AgainstEmpty(request.ProviderId);
var existingUser = UserHelpers.GetExistingUser(request, UserRepository);
Guard.IsTrue(eu => eu.IsNew == false, existingUser);
Guard.AgainstEmpty(request.StudentProvider);
Guard.AgainstEmpty(request.StudentProviderId);
var existingStudent = UserHelpers.GetExistingUser(new LessonDeleteRequest {
Provider = request.StudentProvider, ProviderId = request.StudentProviderId
}, UserRepository);
Guard.IsTrue(eu => eu.IsNew == false, existingStudent);
Guard.IsTrue(es => es.IsStudent, existingStudent);
var grade = GradeRepository.GetGrade(request.LessonId, request.StudentProvider, request.ProviderId);
if (grade == null)
{
return;
}
if (existingUser.IsTeacher == false || request.Provider != grade.TeacherProvider || request.ProviderId != grade.TeacherProviderId)
{
throw new HttpError(HttpStatusCode.Unauthorized, "Unauthorized");
}
if (grade.IsDeleted)
{
return;
}
GradeRepository.DeleteGrade(grade.Id);
}
