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

using System; 
using System.Collections.Generic; 
 
using System.Data; 
 
 
using MyShop.DALFactory; 
using MyShop.IDAL; 
using MyShop.Model; 
 
namespace MyShop.BLL 
{ 
    public class Admin 
    { 
        private IAdmin dal = DataAccess.CreateAdmin(); 
 
        #region  IAdmin 
 
        /// 
 
        /// 密码未md5加密 
        /// 
 
        ///  
        ///  
        protected int Add(AdminInfo model) 
        { 
            if (model == null) 
            { 
                return 0; 
            } 
            return dal.Add(model); 
        } 
 
        protected 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 AdminInfo 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); 
        } 
 
        public int Update(AdminInfo 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 
 
        /// 
 
        /// 加入管理员，password应为已MD5加密 
        /// 
 
        ///  
        ///  
        ///  
        public int Add(AdminInfo model, out string msg) 
        { 
            msg = ""; 
            if (model == null) 
            { 
                msg = msg + "
数据不能为空
"; 
                return 0; 
            } 
            bool isErr = false; 
 
            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; 
        } 
 
        /// 
 
        /// 不能删除Admin管理员和ID ==1的管理员 
        /// 
 
        ///  
        ///  
        public int Delete(int adminId) 
        { 
            if (string.IsNullOrEmpty(adminId.ToString()) || adminId == 1) 
                return 0; 
            AdminInfo model = new AdminInfo(); 
            model = GetModel(adminId); 
            if (model == null) 
                return 0; 
            if (model.AdminName == "admin") 
                return 0; 
 
            string filer; 
            filer = " Id =" + adminId; 
            return Delete(filer); 
        } 
 
        /// 
 
        /// 删除自己以外的管理员(不能删除Admin管理员和ID ==1的管理员) 
        /// 
 
        /// 当前管理员ID 
        ///  
        public int DeleteAll(int adminId) 
        { 
            if (adminId == 0) 
                return 0; 
            return Delete( "  Id <> 1 and adminName <> 'admin' and Id <> " + adminId ); 
        } 
 
        public int Update(AdminInfo model) 
        { 
 
            if (model == null) 
            { 
                return 0; 
            } 
            string filter; 
            filter = " Id=" + model.ID; 
            return Update(model, filter); 
        } 
 
        public AdminInfo GetModel(int adminId) 
        { 
            DataSet dataset = new DataSet(); 
            dataset = GetDataSet(" Id=" + adminId); 
            if (dataset != null && dataset.Tables[0].Rows.Count > 0) 
                return GetModel(dataset.Tables[0].Rows[0]); 
            return null; 
        } 
        public AdminInfo GetModel(string adminName) 
        { 
            adminName = Utils.ReplaceBadSQL(adminName.Trim()); 
            if (string.IsNullOrEmpty(adminName.ToString())) 
                return null; 
            DataSet dataset = new DataSet(); 
            dataset = GetDataSet(" adminName='" + adminName + "'"); 
            if (dataset != null && dataset.Tables[0].Rows.Count > 0) 
                return GetModel(dataset.Tables[0].Rows[0]); 
            return null; 
        } 
 
 
        /// 
 
        /// 管理员名是否已被注册 
        /// 
 
        ///  
        ///  
        public bool ExistAdminName(string adminName) 
        { 
            if (string.IsNullOrEmpty(adminName)) 
                return true; 
            return Exist(" adminname ='" + Utils.ReplaceBadSQL(adminName.Trim()) + "'"); 
        } 
 
        /// 
 
        /// 管理员是否存在 
        /// 
 
        ///  
        /// 未加密的明码 
        ///  
        public bool Exist(string adminName, string password) 
        { 
            if (Exist("adminname = '" + Utils.ReplaceBadSQL( adminName.Trim() )+ "' and password = '" + Utils.MD5( Utils.ReplaceBadSQL(password)) + "'")) 
            { 
                return true; 
            } 
            else 
                return false; 
        } 
 
        /// 
 
        /// 管理员是否存在 
        /// 
 
        ///  
        /// 管理员密码 
        /// 管理员密码是否已MD5加密 
        ///  
        public bool Exist(string adminName, string password, bool MD5) 
        { 
            password = Utils.ReplaceBadSQL(password); 
            if (MD5) 
            { 
                if (Exist("adminname = '" + adminName + "' and password = '" + password + "'")) 
                { 
                    return true; 
                } 
                else 
                    return false; 
 
            } 
            else 
            { 
                if (Exist("adminname = '" + adminName + "' and password = '" + Utils.MD5(password) + "'")) 
                { 
                    return true; 
                } 
                else 
                    return false; 
            } 
        } 
 
        #endregion 
 
 
 
    } 
}