public BasketItemView(BasketItem basketItem)
{
BookRepository bookRepository;
BookVariableInfoRepository bookVariableInfoRepository;
BasketRepository basketRepository;
PaymentRepository paymentRepository;
bookRepository = new BookRepository();
bookVariableInfoRepository = new BookVariableInfoRepository();
basketRepository = new BasketRepository();
paymentRepository = new PaymentRepository();
this.Id = basketItem.Id;
this.Amount = basketItem.Amount;
this.BasketId = basketItem.BasketId;
this.BookVariableInfoId = basketItem.BookVariableInfoId;
this.ItemCount = basketItem.ItemCount;
this.PaymentId = basketItem.PaymentId;
this.BookVariableInfo = (BookVariableInfo)
bookVariableInfoRepository.FindById(this.BookVariableInfoId);
this.Book = (Book)bookRepository.FindById(this.BookVariableInfoId);
if (this.BasketId != null)
this.Basket = (Basket)basketRepository.FindById((Int32)this.BasketId);
if (this.PaymentId != null)
this.Payment = (Payment)paymentRepository.FindById((Int32)this.PaymentId);
}
public void Edit(BasketItem newBasketItem)
{
BasketItem oldBasketItem;
using (BookMarketDbContext db = new BookMarketDbContext())
{
db.EditBasketItem(newBasketItem.Id, newBasketItem.Amount,
newBasketItem.ItemCount, newBasketItem.BookVariableInfoId,
newBasketItem.BasketId, newBasketItem.PaymentId);
}
}
//Добавление экземпляров книги в корзину покупателя
//Должна быть транзакция
public bool AddBookItem(Basket basket, BasketItem basketItem)
{
Int32 allBasketItemCount;
Book book;
BookVariableInfo bookVariableInfo, newBookVariableInfo;
BasketRepository basketRepository;
if (basket != null && basketItem != null)
{
if (basket.BasketItems == null)
basket.BasketItems = new List<BasketItem>();
bookVariableInfo = (BookVariableInfo)
base._bookVariableInfoRepository.FindById(
basketItem.BookVariableInfoId);
book = (Book)this._bookRepository.FindById(bookVariableInfo.Id);
//Валидация. Общее число заказанного товара не должно быть >= имеющегося числа
allBasketItemCount = BasketItemCounting(basketItem);
if (allBasketItemCount + basketItem.ItemCount >
bookVariableInfo.ProductCount)
return false;
//Добавление заказанной книги
basketItem.BasketId = basket.Id;
basketItem.Amount =
bookVariableInfo.Price * basketItem.ItemCount;
base._basketItemRepository.Add(basketItem);
//Обновление корзины
basket.TotalAmount += basketItem.Amount;
basketRepository = new BasketRepository();
basketRepository.Edit(basket);
return true;
}
else
{
throw new Exception("Корзина или элемент корзины не заданы!");
}
return false;
}
//Подсчет числа экзмемпляров книг корзины
private Int32 BasketItemCounting(BasketItem basketItem)
{
Int32 basketProductCount;
IList<Int32> itemsCount;
IList<BasketItem> allBasketItems;
BasketItemRepository basketItemRepository;
basketItemRepository = (BasketItemRepository)
this._basketItemRepository;
allBasketItems = basketItemRepository
.FindAllByBasket((Int32)basketItem.BasketId);
// Связь 1:1 BookVariableInfo и Book
itemsCount = (from searchBasketItem in allBasketItems
where searchBasketItem.BookVariableInfoId ==
basketItem.BookVariableInfoId
select searchBasketItem.ItemCount).ToList<Int32>();
return itemsCount.Sum();
}
//Обновление экземпляров книги в корзине покупателя
//Должна быть транзакция
public bool UpdateBookItem(BasketItem newBasketItem)
{
Int32 allBasketItemCount;
Basket basket;
Book book;
BookVariableInfo bookVariableInfo;
BasketItem oldBasketItem;
BasketRepository basketRepository;
BasketItemRepository basketItemRepository;
if (newBasketItem != null)
{
basketRepository = (BasketRepository)this._basketRepository;
basketItemRepository = (BasketItemRepository)
base._basketItemRepository;
bookVariableInfo = (BookVariableInfo)
base._bookVariableInfoRepository.FindById(
newBasketItem.BookVariableInfoId);
book = (Book)this._bookRepository.FindById(bookVariableInfo.Id);
basket = (Basket)this._basketRepository.FindById(
(Int32)newBasketItem.BasketId);
oldBasketItem = (BasketItem)base._basketItemRepository
.FindById(newBasketItem.Id);
//Валидация. Общее число заказанного товара не должно быть >= имеющегося числа
allBasketItemCount = BasketItemCounting(newBasketItem);
if (allBasketItemCount - oldBasketItem.ItemCount +
newBasketItem.ItemCount > bookVariableInfo.ProductCount)
return false;
//
//Обновление корзины
basket.TotalAmount -= oldBasketItem.Amount;
basket.TotalAmount +=
newBasketItem.ItemCount * bookVariableInfo.Price;
basketRepository.Edit(basket);
//Обновление заказанной книги
newBasketItem.Amount =
bookVariableInfo.Price * newBasketItem.ItemCount;
basketItemRepository.Edit(newBasketItem);
return true;
}
else
{
throw new Exception("Элемент корзины не задан!");
}
return false;
}
//Извлечение BasketItem из BasketItemView
public BasketItem GetBasketItem(BasketItemView basketItemView)
{
BasketItem basketItem;
BasketRepository basketRepository;
BookVariableInfoRepository bookVariableInfoRepository;
PaymentRepository paymentRepository;
basketItem = new BasketItem()
{
Id = basketItemView.Id,
Amount = basketItemView.Amount,
BasketId = basketItemView.BasketId,
BookVariableInfoId = basketItemView.BookVariableInfoId,
ItemCount = basketItemView.ItemCount,
PaymentId = basketItemView.PaymentId
};
basketItem.BookVariableInfo = (BookVariableInfo)
this._bookVariableInfoRepository.FindById(
basketItem.BookVariableInfoId);
if (basketItem.BasketId != null)
basketItem.Basket = (Basket)
this._basketRepository.FindById((Int32)basketItem.BasketId);
if (basketItem.PaymentId != null)
basketItem.Payment = (Payment)
this._paymentRepository.FindById((Int32)basketItem.PaymentId);
return basketItem;
}
//Удаление экземпляров книги в корзине покупателя
//Должна быть транзакция
public bool DeleteBasketItem(BasketItem basketItem)
{
Book book;
BookVariableInfo bookVariableInfo;
Basket basket;
BasketItem oldBasketItem;
BasketRepository basketRepository;
BasketItemRepository basketItemRepository;
if (basketItem != null)
{
basketRepository = (BasketRepository)this._basketRepository;
basketItemRepository = (BasketItemRepository)
base._basketItemRepository;
basket = (Basket)this._basketRepository.FindById(
(Int32)basketItem.BasketId);
bookVariableInfo = (BookVariableInfo)
base._bookVariableInfoRepository.FindById(
basketItem.BookVariableInfoId);
//Обновление корзины
basket.TotalAmount -= basketItem.Amount;
basketRepository.Edit(basket);
//Удаление заказанной книги
basketItemRepository.Delete(basketItem.Id);
return true;
}
else
{
throw new Exception("Элемент корзины не задан!");
}
return false;
}
