private bool CheckBuyProducts(List<CartProduct> buyProducts,out string errorMessage)
{
var products = new List<CartProduct>();
var messageSB = new StringBuilder();
var whereStr = new StringBuilder();
whereStr.Append("ID in (");
for (int i = 0; i < buyProducts.Count; i++)
{
if (i < buyProducts.Count - 1)
{
whereStr.Append(buyProducts[i].ProductID).Append(",");
}
else
{
whereStr.Append(buyProducts[i].ProductID);
}
}
whereStr.Append(")");
var productList = new ProductService().Query(ProductType.Rand, 100, whereStr.ToString());
if (productList == null || productList.Count < 1)
{
errorMessage = "商品不存在或已下架。";
LogUtils.Log("根据商品ID从数据批量获取商品信息为NULL;商品查询条件：" + whereStr, "BuildCartProducts", Category.Warn);
return false;
}
foreach (var cartProduct in buyProducts)
{
var quantity = 0;
var response = this.CheckSpecialPromote(cartProduct.ProductID, ref quantity);
if (response != null) //特殊全场活动赠品
{
if (response.State == 0) //不允许领取赠品
{
messageSB.Append("商品：").Append(cartProduct.ProductName).Append(" ").Append(response.Message).Append("\r\n");
continue;
}
else
{
cartProduct.GoujiuPrice = 0;
if (cartProduct.Quantity > quantity) //若数量大于可赠送数量
{
messageSB.Append("商品：")
.Append(cartProduct.ProductName)
.Append(" ")
.Append("为活动赠品，最多可领取 " + quantity + "件。")
.Append("\r\n");
continue;
}
}
}
var product = productList.FirstOrDefault(p => p.ID == cartProduct.ProductID);
if (product.Status != 2)
{
messageSB.Append("商品：" + product.Name).Append(" 已下架；").Append("\r\n");
}
else if (product.InventoryNumber < 1)
{
messageSB.Append("商品：" + product.Name).Append(" 库存不足；").Append("\r\n");
}
else if (product.InventoryNumber < cartProduct.Quantity)
{
messageSB.Append("商品：" + product.Name).Append(" 库存剩余").Append(product.InventoryNumber).Append("件；\r\n");
products.Add(this.ConvertToCartProduct(product, product.InventoryNumber));
}
else
{
products.Add(this.ConvertToCartProduct(product, cartProduct.Quantity));
}
}
errorMessage = messageSB.ToString();
if (!string.IsNullOrWhiteSpace(messageSB.ToString())) //检查不通过
{
return false;
}
//检查通过
return true;
}
private List<CartProduct> BuildCartProducts(int[] proIds, int[] quantity)
{
var products = new List<CartProduct>();
var whereStr = new StringBuilder();
var messageSB = new StringBuilder();
whereStr.Append("ID in (");
for (int i = 0; i < proIds.Length; i++)
{
if (i < proIds.Length - 1)
{
whereStr.Append(proIds[i]).Append(",");
}
else
{
whereStr.Append(proIds[i]);
}
}
whereStr.Append(")");
var list = new ProductService().Query(ProductType.Rand, 100, whereStr.ToString());
if (list == null)
{
LogUtils.Log("根据商品ID从数据批量获取商品信息为NULL;商品列表：" + proIds, "BuildCartProducts", Category.Warn);
return new List<CartProduct>();
}
for (int i = 0; i < proIds.Length; i++)
{
var product = list.FirstOrDefault(p => p.ID == proIds[i]);
if (product != null)
{
if (quantity[i] <= 0)
{
messageSB.Append("商品：" + product.Name).Append(" 购买数量不能为0").Append("\r\n");
}
else if (product.Status!=2)
{
messageSB.Append("商品：" + product.Name).Append(" 已下架；").Append("\r\n");
}
else if (product.InventoryNumber < 1)
{
messageSB.Append("商品：" + product.Name).Append(" 库存不足；").Append("\r\n");
}
else if (product.InventoryNumber < quantity[i])
{
messageSB.Append("商品：" + product.Name).Append(" 库存剩余").Append(product.InventoryNumber).Append("件；\r\n");
products.Add(this.ConvertToCartProduct(product, product.InventoryNumber));
}
else
{
products.Add(this.ConvertToCartProduct(product, quantity[i]));
}
}
}
ViewBag.ExtraMessage = messageSB.ToString();
return products;
}