@Override
public String addShoppingCart(String accountId, Integer productId, Integer productNum) {
Account account = accountDAO.find(Account.class, accountId);
if (account == null) {
return "账号不存在";
}
ProductInfo productInfo = productInfoDAO.find(ProductInfo.class, productId);
if (productInfo == null) {
return "商品不存在";
}
ShoppingCart shoppingCart = shoppingCartDAO.getShoppingCartByProduct(accountId, productId);
if (shoppingCart == null) {
shoppingCart = new ShoppingCart();
shoppingCart.setProductInfo(productInfo);
shoppingCart.setCreateTime(new Date());
shoppingCart.setSellerInfo(productInfo.getSellerInfo());
shoppingCart.setAccountId(accountId);
shoppingCart.setProductNum(productNum);
shoppingCartDAO.add(ShoppingCart.class, shoppingCart);
} else {
shoppingCart.setProductNum(shoppingCart.getProductNum() + productNum);
shoppingCartDAO.update(ShoppingCart.class, shoppingCart);
}
return null;
}
@Override
public String modifyShoppingCartNum(String accountId, Integer cartId, Integer modifyNum) {
ShoppingCart shoppingCart = shoppingCartDAO.find(ShoppingCart.class, cartId);
if (shoppingCart == null || ObjectUtils.notEqual(accountId, shoppingCart.getAccountId())) {
return "记录不存在";
}
if (shoppingCart.getProductNum() + modifyNum <= 0) {
return TextConstant.PARAM_ERROR;
}
shoppingCart.setProductNum(shoppingCart.getProductNum() + modifyNum);
shoppingCartDAO.update(ShoppingCart.class, shoppingCart);
return null;
}