public bool AddScheduleSubjectsByClassId(ScheduleSubjectOfClassDto dto)
{
try
{
if (!IsValidInput(dto))
{
return(false);
}
foreach (var item in dto.ScheduleSubjects)
{
var schedule = new ScheduleSubject
{
TeacherId = item.TeacherId,
ClassId = dto.ClassId,
SubjectId = item.SubjectId,
SemesterId = dto.SemesterId,
DayLessonId = GetDayLessonId(item.DayOfWeek, item.Lesson)
};
db.ScheduleSubjects.Add(schedule);
}
db.SaveChanges();
return(true);
}
catch (Exception)
{
return(false);
}
}
private bool IsValidInput(ScheduleSubjectOfClassDto dto)
{
var scheduleSubjects = db.ScheduleSubjects.Include(x => x.DayOfWeekLesson).ToList();
foreach (var schedule in dto.ScheduleSubjects)
{
if (scheduleSubjects.Any(x =>
!x.DelFlag &&
(x.ClassId == dto.ClassId || x.TeacherId == schedule.TeacherId) &&
x.SemesterId == dto.SemesterId &&
x.DayOfWeekLesson.DayOfWeek == schedule.DayOfWeek &&
x.DayOfWeekLesson.Lesson == schedule.Lesson))
{
return(false);
}
}
return(true);
}