public void Modify(Base model, ApplicationDbContext db)
{
ModifyTime = DateTime.Now;
Name = model.Name;
Description = model.Description;
db.Entry(this).State = EntityState.Modified;
}
public override void Create(ApplicationDbContext db)
{
base.Create(db);
if (Awards != null)
{
foreach (var item in Awards)
{
db.Entry(item).State = EntityState.Unchanged;
}
}
}
public void Modify(Activity model, ApplicationDbContext db)
{
base.Modify(model, db);
CoverUrl = model.CoverUrl;
BeginTime = model.BeginTime;
EndTime = model.EndTime;
Count = model.Count;
model.Awards = model.Awards ?? new List<Award>();
var add = model.Awards.Where(o1 => !Awards.Any(o2 => o1.Id == o2.Id)).ToList();
var remove = Awards.Where(o1 => !model.Awards.Any(o2 => o1.Id == o2.Id)).ToList();
foreach (var item in add)
{
db.Entry(item).State = EntityState.Unchanged;
Awards.Add(item);
}
foreach (var item in remove)
{
Awards.Remove(item);
}
}