public async Task <List <DisciplineVO> > FindByCourseIdTaskAsync(Guid courseId)
{
if (!(await _disciplineRepository.FindDisciplinesByCourseIdTaskAsync(courseId) is List <DisciplineModel> disciplines))
{
return(null);
}
return(_disciplineConverter.ParseList(disciplines));
}
public async Task <List <LessonDisciplineVO> > FindFiveLastLessonsByCourseIdTaskAsync(Guid courseId)
{
if (!(await _lessonRepository.FindFiveLastLessonsByCourseIdTaskAsync(courseId) is List <LessonModel> listLessons))
{
return(null);
}
if (!(await _disciplineBusiness.FindAllByDisciplineIdsTaskAsync(listLessons.Select(x => x.DisciplineId).ToHashSet().ToList()) is List <DisciplineVO> listDisciplines))
{
return(null);
}
List <DisciplineModel> disciplineModels = _disciplineConverter.ParseList(listDisciplines);
var lessonDisciplines = new List <(LessonModel, DisciplineModel)>();
foreach (LessonModel l in listLessons)
{
lessonDisciplines.Add((l, disciplineModels.Where(x => x.DisciplineId == l.DisciplineId).SingleOrDefault()));
}
return(_lessonDisciplineConverter.ParseList(lessonDisciplines));
}
