public bool Update(PurchaseBillViewModel entity)
{
var purchaseBill = entity.MapToPuchaseBill();
var newPurchaseBillDetails = new List <PurchaseBillDetail>();
foreach (var item in entity.PurchaseBillDetailViewModels)
{
var purchaseBillDetail = item.MapToPurchaseBillDetail();
purchaseBillDetail.PurchaseBillId = purchaseBill.PurchaseBillId;
newPurchaseBillDetails.Add(purchaseBillDetail);
}
_purchaseBillRepository.Update(purchaseBill);
var oldPurchaseBillDetails = _purchaseBillDetailRepository.FindAll(pd => pd.PurchaseBillId == entity.PurchaseBillId).ToList();
if (oldPurchaseBillDetails != null)
{
var deletePurchaseBillDetails = oldPurchaseBillDetails.Where(op => !newPurchaseBillDetails.Any(p => p.Id == op.Id));
var addPurchaseBillDetails = newPurchaseBillDetails.Where(p => !oldPurchaseBillDetails.Any(op => op.Id == p.Id));
var updatePurchaseBillDetails = newPurchaseBillDetails.Where(p => oldPurchaseBillDetails.Any(op => op.Id == p.Id));
_purchaseBillDetailRepository.DeleteRange(deletePurchaseBillDetails);
_purchaseBillDetailRepository.AddRange(addPurchaseBillDetails);
_purchaseBillDetailRepository.UpdateRange(updatePurchaseBillDetails);
}
return(true);
}
