catalogmanager.cs

一个很好的网上购物系统！进行了新的修改具有很多的功能！

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Commerce.Providers;
/// <summary>
/// Summary description for CatalogManager
/// </summary>
public static class CatalogManager {

    /// <summary>
    /// Gets all the products in the database
    /// </summary>
    /// <returns>Reader</returns>
    public static IDataReader GetProducts() {
       //return Commerce.Providers.
        //Commerce.Providers.CatalogProvider.g
        return Commerce.Providers.CatalogProvider.Instance.GetProducts();
    }
 
    /// <summary>
    /// Gets products by product category
    /// </summary>
    /// <param name="categoryID"></param>
    /// <returns>Reader</returns>
    public static IDataReader GetProductsByCategory(int categoryID) {
        return Commerce.Providers.CatalogProvider.Instance.GetProductsByCategory(categoryID);
    }

    public static bool IsActive(int productID) {
        return CatalogProvider.Instance.ProductIsActive(productID);
    }

    /// <summary>
    /// Gets a specific product
    /// </summary>
    /// <param name="productID"></param>
    /// <returns></returns>
    public static IDataReader GetProduct(int productID) {
        return Commerce.Providers.CatalogProvider.Instance.GetProduct(productID);

    }

    /// <summary>
    /// Gets product information and fills a dataset
    /// </summary>
    /// <param name="productID"></param>
    /// <param name="ds">The dataset to fill</param>
    public static void FillProductDataSet(int productID, DataSet ds) {
        Commerce.Providers.CatalogProvider.Instance.FillProductDataSet(productID, ds);
    }

    /// <summary>
    /// Gets all category records in the database
    /// </summary>
    /// <returns>Reader</returns>
    public static IDataReader GetCategories() {
        return Commerce.Providers.CatalogProvider.Instance.GetCategories();
    }

    /// <summary>
    /// Debits the inventory by the supplied amount. Note that if you enter "5", 5 will be deducted from AmountOnHand
    /// </summary>
    /// <param name="productID"></param>
    /// <param name="adjustment">The amount to debit</param>
    /// <param name="comment"></param>
    public static void AdjustInventory(int productID, int adjustment,string comment){
        Commerce.Providers.CatalogProvider.Instance.ProductsAdjustInventory(productID, adjustment, comment);
    }
    public static IDataReader GetInventoryHistory(int productID) {
        return Commerce.Providers.CatalogProvider.Instance.ProductsInventoryHistory(productID);
    }
    public static void InactivateProduct(int productID) {
        Commerce.Providers.CatalogProvider.Instance.ProductInactivate(productID);
        
        //remove the products from open baskets
        ShoppingCartManager.RemoveAllProducts(productID);
    }
    public static int AddProduct(Product product) {
        return Commerce.Providers.CatalogProvider.Instance.ProductInsert(product.CategoryID,
            product.ModelNumber, product.ModelName, product.ProductImage,
            product.UnitCost, product.Description, product.AmountOnHand,
            product.SKU,product.Weight);
    }
    public static double GetDiscountedPrice(double originalPrice, int discountPercent) {
        double dOut = 0;
        double discount = 0;
        if (discountPercent > 0) {
            discount = Convert.ToDouble(discountPercent) / 100;
        }
        double discountAmount = originalPrice * discount;
        return originalPrice - discountAmount;

    }
    public static void UpdateProduct(Product product) {
        Commerce.Providers.CatalogProvider.Instance.ProductUpdate(product.ProductID,product.CategoryID,
            product.ModelNumber, product.ModelName, product.ProductImage,
            product.UnitCost, product.Description,
            product.SKU,product.IsActive,product.Weight,product.DiscountPercent);
        
        //apply any newly added discounts
        //this will carry through to the basket updates
        if (product.DiscountPercent > 0) 
            product.UnitCost = GetDiscountedPrice(product.UnitCost,product.DiscountPercent);
        
        
        //update any items currently in the shopping carts (active carts only)
        ShoppingCartManager.UpdateCartProducts(product.ProductID, product.UnitCost, product.Weight, product.ModelName,
            product.ModelNumber,product.SKU);

        //if this product has been inactivated, don't allow 
        //anyone to buy it.
        if (!product.IsActive) {
            ShoppingCartManager.RemoveAllProducts(product.ProductID);
        }
    }
    public static void PermanentDelete(int productID) {
        CatalogProvider.Instance.ProductDeletePermanent(productID);
        
        //remove them from the carts
        ShoppingCartManager.RemoveAllProducts(productID);

    }

    public static IDataReader Search(string query) {
        return CatalogProvider.Instance.ProductsSearch(query);
    }
}