public async Task <UserPurchase> UpdateOrder
(int purchaseId, SubmitOrderItemsModel model, int currentUserId)
{
var purchase = await _db.Purchases
.Include(p => p.StoreOrder)
.Include(p => p.UserPurchases)
.ThenInclude(up => up.User)
.Where(up => up.Id == purchaseId)
.FirstAsync();
if (purchase.StoreOrder.IsSubmitted)
{
throw new ApiException(401, "Purchase closed for change by creator", ErrorCode.ValidationError);
}
var userPurchase = purchase.UserPurchases
.Where(t => t.UserId == currentUserId)
.FirstOrDefault();
var prevItems = await _db.UserPurchaseItems
.Include(t => t.UserPurchase)
.Where(t => t.UserPurchase.PurchaseId == purchaseId)
.Where(t => t.UserPurchase.UserId == currentUserId)
.ToListAsync();
var items = model.Items.Select(u => new UserPurchaseItem
{
UserPurchase = userPurchase,
ItemId = u.ItemId,
Number = u.Number,
Price = u.Price
});
var prevUserPurchaseSum = userPurchase.Sum;
userPurchase.Sum = items.Sum(item => item.Price);
if (purchase.CreatorId != currentUserId)
{
purchase.TotalSum = (purchase.TotalSum ?? 0) - (prevUserPurchaseSum ?? 0) + userPurchase.Sum;
}
_db.UserPurchaseItems.RemoveRange(prevItems);
_db.UserPurchaseItems.AddRange(items);
await _db.SaveChangesAsync();
return(userPurchase);
}
public async Task <IActionResult> UpdateOrder(int purchaseId, [FromBody] SubmitOrderItemsModel model)
{
if (model == null)
{
throw new ApiException(400, "Invalid request body", ErrorCode.InvalidRequestFormat);
}
var userPurchase = await _storeOrdersService
.UpdateOrder(purchaseId, model, _currentUser.Id);
if (userPurchase.Purchase.CreatorId == _currentUser.Id)
{
return(Ok(_mapper.Map <MyPurchase>(userPurchase.Purchase)));
}
else
{
return(Ok(_mapper.Map <PurchaseWithMe>(userPurchase)));
}
}