www.pudn.com > MyShop.rar > ProductKinds.cs

using System.Data; 
 
 
using MyShop.DALFactory; 
using MyShop.IDAL; 
using MyShop.Model; 
 
namespace MyShop.BLL 
{ 
    public class ProductKinds 
    { 
        private IProductKinds dal = DataAccess.CreateProductKinds(); 
        private int _id; 
        public ProductKinds() 
        { 
        } 
 
        public ProductKinds(int id) 
        { 
            this._id = id; 
 
        } 
 
        #region ICategory member 
 
       public int Add(ProductKindsInfo model) 
        { 
            if (model == null) 
                return 0; 
            return dal.Add(model); 
        } 
        public int Delete(string filter) 
        { 
            if (string.IsNullOrEmpty(filter)) 
                return 0; 
            return dal.Delete(filter); 
        } 
 
        public bool Exist(string filter) 
        { 
            filter = filter.Trim(); 
            if (string.IsNullOrEmpty(filter)) 
                return false; 
            return dal.Exist(filter); 
        } 
 
        public DataSet GetDataSet() 
        { 
            return dal.GetDataSet(); 
        } 
        public DataSet GetDataSet(string filter) 
        { 
            filter = filter.Trim(); 
            if (string.IsNullOrEmpty(filter)) 
                return null; 
            return dal.GetDataSet(filter); 
        } 
        public DataSet GetDataSet(int ProductKindId) 
        { 
            if (ProductKindId <= 0) 
                return null; 
            string filter = " ProductKindId=" + ProductKindId; 
            return GetDataSet(filter); 
        } 
 
 
        public DataSet GetDataSetEnabledOrderByOrderId() 
        { 
            string filter = " [IsDisabled] = 0   Order by  OrderId  "; 
            return GetDataSet(filter); 
        } 
 
        public ProductKindsInfo GetModel(DataRow dr) 
        { 
            if (dr == null) 
                return null; 
            return dal.GetModel(dr); 
        } 
 
        private DataSet Query(string sql) 
        { 
            sql = sql.Trim(); 
            if (string.IsNullOrEmpty(sql)) 
                return null; 
            return dal.Query(sql); 
        } 
 
        protected int Update(ProductKindsInfo model, string filter) 
        { 
            if (model == null) 
                return 0; 
            filter = filter.Trim(); 
            if (string.IsNullOrEmpty(filter)) 
                return 0; 
            return dal.Update(model, filter); 
        } 
        //------------------------- 
        #endregion 
 
        #region common 
 
        public int Add(ProductKindsInfo model, out string msg) 
        { 
            msg = ""; 
            if (model == null) 
            { 
                msg = msg + "
数据不能为空
"; 
                return 0; 
            } 
 
            bool isErr = false; 
 
            if (string.IsNullOrEmpty(model.ProductKindName.Trim())) 
            { 
                msg = msg + "请输入商品种类名称"; 
                isErr = true; 
            } 
 
            if (isErr) 
                return 0; 
 
            int count = 0; 
            count = Add(model); 
            if (count == 0) 
                msg = "
系统发生错误,请重新添加!
"; 
            if (count == 1) 
                msg = "
添加成功!
"; 
            return count; 
        } 
 
        public int Delete(int ProductKindId) 
        { 
            if (string.IsNullOrEmpty(ProductKindId.ToString())) 
                return 0; 
            string filer; 
            filer = " ProductKindId =" + ProductKindId; 
            return Delete(filer); 
        } 
        public int Update(ProductKindsInfo model) 
        { 
 
            if (model == null) 
            { 
                return 0; 
            } 
            string filter; 
            filter = " ProductKindId=" + model.ProductKindId; 
            return Update(model, filter); 
        } 
 
        public ProductKindsInfo GetModel(int ProductKindId) 
        { 
            DataSet dataset = new DataSet(); 
            dataset = GetDataSet(" ProductKindId=" + ProductKindId); 
            if (dataset != null && dataset.Tables[0].Rows.Count > 0) 
                return GetModel(dataset.Tables[0].Rows[0]); 
            return null; 
 
        } 
 
        #endregion 
 
        #region 以下过程要用ProductKinds product = new ProductKinds(id)实例化后才能进行调用 
 
 
        #region property 
 
        /// 
 
        /// 获取当前项目ID 
        /// 
 
        public int ID 
        { 
            get 
            { 
                return this._id; 
            } 
        } 
 
        /// 
 
        ///  获取调查项目的实体 
        /// 
 
        public ProductKindsInfo Model 
        { 
            get 
            { 
                return GetModel(this._id); 
            } 
            set 
            { 
                Update(value); 
            } 
        } 
 
        /// 
 
        /// 获取当前对象是否存在(数据库中有没有这条记录) 
        /// 
 
        public bool isExist 
        { 
            get 
            { 
                return Model == null ? false : true; 
            } 
        } 
 
        #endregion 
 
        #endregion 
 
        #region 后台管理 
        public DataSet GetDataSetOrderByOrderId() 
        { 
            return GetDataSet(" productKindId > 0 Order by  OrderId  "); 
        } 
 
 
 
        /// 
 
        /// 检查名称是否存在 
        /// 
 
        ///  
        ///  
        public bool IsExist(string productKindName) 
        { 
            productKindName = Utils.ReplaceBadSQL(productKindName.Trim()); 
            if (string.IsNullOrEmpty(productKindName)) 
                return false; 
            string filter = " productKindName='" + productKindName + "'"; 
 
            return Exist(filter); 
        } 
 
 
        #endregion 
 
 
    } 
}