public async ValueTask <ElementSummary?> AddLessonAsync(long courseId, ushort i, DescribedElementSummary des)
{
try
{
var ir = new DbLesson
{
CourseId = courseId,
Description = des.Description,
Name = des.Name,
Index = i
};
await Db.Lessons.AddAsync(ir);
await Db.SaveChangesAsync();
return(new ElementSummary
{
Id = ir.Id,
Name = ir.Name
});
}
catch (Exception e)
{
Logger.LogError(e.Message);
return(null);
}
}
public async ValueTask DeleteLessonAsync(long id)
{
var r = new DbLesson {
Id = id
};
Db.Lessons.Attach(r);
Db.Lessons.Remove(r);
await Db.SaveChangesAsync();
}
