public async Task DeleteUserInfo(int id)
{
var deleted = await SelectById(id);
if (deleted != null)
{
_db.Set <UserInfo>().Remove(deleted);
}
else
{
throw new ArgumentException("Not found object id.");
}
await SaveUserInfo();
}
public async Task DeleteOrder(int id)
{
var deleted = await GetOrderById(id);
if (deleted != null)
{
_db.Set <Order>().Remove(deleted);
}
else
{
throw new ArgumentException("Not found object id.");
}
await SaveOrder();
}
public async Task <IEnumerable <OrderDetail> > SelectAll(Expression <Func <OrderDetail, bool> > predicate)
{
return(await _db.Set <OrderDetail>().Where(predicate).ToListAsync());
}