public async Task <IEnumerable <Tutor> > ListByTopicIdAsync(int topicId)
{
var expertTopics = await _expertTopicRepository.ListByTopicIdAsync(topicId);
var tutors = expertTopics.Select(et => et.Tutor).ToList();
return(tutors);
}
public async Task <IEnumerable <ExpertTopic> > ListByTopicIdAsync(int topicId)
{
return(await _expertTopicRepository.ListByTopicIdAsync(topicId));
}
