CloudComputingFinalProject/App.code/DAL/manager_log.cs

using System;
using System.Collections.Generic;
using System.Web;
using System.Data;
using System.Data.SqlClient;
using System.Text;

/// <summary>
/// 登录日志
/// </summary>
namespace Basic.DAL
{
    public class manager_log
    {
        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Model.manager_log model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into tb_manager_log(");
            strSql.Append("user_id,user_name,action_type,note,login_ip,login_time)");
            strSql.Append(" values (");
            strSql.Append("@user_id,@user_name,@action_type,@note,@login_ip,@login_time)");
            strSql.Append(";select @@IDENTITY");

            SqlParameter user_id = new SqlParameter("@user_id", model.user_id);
            SqlParameter user_name = new SqlParameter("@user_name", model.user_name);
            SqlParameter action_type = new SqlParameter("@action_type", model.action_type);
            SqlParameter note = new SqlParameter("@note", model.note);
            SqlParameter login_ip = new SqlParameter("@login_ip", model.login_ip);
            SqlParameter login_time = new SqlParameter("@login_time", model.login_time);

            SqlParameter[] parameters = new SqlParameter[6]
                         {
                        user_id,user_name,action_type,note,login_ip,login_time
                         };
            object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }

        /// <summary>
        /// 获得查询分页数据
        /// </summary>
        public DataSet GetList(int pageSize, int pageIndex, string strWhere, string filedOrder, out int recordCount)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select * FROM tb_manager_log");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            recordCount = Convert.ToInt32(DbHelperSQL.GetSingle(PagingHelper.CreateCountingSql(strSql.ToString())));
            return DbHelperSQL.Query(PagingHelper.CreatePagingSql(recordCount, pageSize, pageIndex, strSql.ToString(), filedOrder));
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from tb_manager_log ");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = id;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 根据用户名返回上一次登录记录
        /// </summary>
        public Model.manager_log GetModel(string user_name, int top_num, string action_type)
        {
            int rows = GetCount("user_name='" + user_name + "'");
            if (top_num == 1)
            {
                rows = 2;
            }
            if (rows > 1)
            {
                StringBuilder strSql = new StringBuilder();
                strSql.Append("select top 1 id from (select top " + top_num + " id from tb_manager_log where user_name=@user_name and action_type=@action_type order by id desc) as T ");
                strSql.Append(" order by id asc");
                SqlParameter[] parameters = {
					new SqlParameter("@user_name", SqlDbType.NVarChar,100),
                    new SqlParameter("@action_type", SqlDbType.NVarChar,100)};
                parameters[0].Value = user_name;
                parameters[1].Value = action_type;

                object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
                if (obj != null)
                {
                    return GetModel(Convert.ToInt32(obj));
                }
            }
            return null;
        }

        /// <summary>
        /// 返回数据数
        /// </summary>
        public int GetCount(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(*) as H ");
            strSql.Append(" from tb_manager_log ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return Convert.ToInt32(DbHelperSQL.GetSingle(strSql.ToString()));
        }

        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Model.manager_log GetModel(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 id,user_id,user_name,action_type,note,login_ip,login_time from tb_manager_log ");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)};
            parameters[0].Value = id;

            Model.manager_log model = new Model.manager_log();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                if (ds.Tables[0].Rows[0]["id"].ToString() != "")
                {
                    model.id = int.Parse(ds.Tables[0].Rows[0]["id"].ToString());
                }
                if (ds.Tables[0].Rows[0]["user_id"].ToString() != "")
                {
                    model.user_id = int.Parse(ds.Tables[0].Rows[0]["user_id"].ToString());
                }
                model.user_name = ds.Tables[0].Rows[0]["user_name"].ToString();
                model.action_type = ds.Tables[0].Rows[0]["action_type"].ToString();
                model.note = ds.Tables[0].Rows[0]["note"].ToString();
                model.login_ip = ds.Tables[0].Rows[0]["login_ip"].ToString();
                if (ds.Tables[0].Rows[0]["login_time"].ToString() != "")
                {
                    model.login_time = DateTime.Parse(ds.Tables[0].Rows[0]["login_time"].ToString());
                }
                return model;
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 获得查询分页数据
        /// </summary>
        public DataSet GetList(string _strWhere, string _orderby, int _pageSize, int _page, out int recordCount)
        {
            BasicPage bp = new BasicPage();
            StringBuilder str_Sql = new StringBuilder();
            str_Sql.Append("select top " + _pageSize + " id,user_name,note,login_ip,login_time from tb_manager_log");
            str_Sql.Append(" where  ");
            str_Sql.Append(_strWhere);
            str_Sql.Append(" and id not in ");
            str_Sql.Append(" ( ");
            str_Sql.Append(" select top " + (_page - 1) * _pageSize + " id from tb_manager_log ");
            str_Sql.Append(" where  ");
            str_Sql.Append(_strWhere);
            str_Sql.Append(" order by  ");
            str_Sql.Append(_orderby);
            str_Sql.Append(" ) ");
            str_Sql.Append(" order by  ");
            str_Sql.Append(_orderby);
            DataSet dst = bp.SelectDataBase("tb_manager_log", str_Sql.ToString());
            //
            recordCount = totlePage(showTotal(_strWhere), _pageSize);
            return dst;
        }

        //总页数
        public int totlePage(int Total, int PageSize)
        {
            if (Total % PageSize == 0)
            {
                return Total / PageSize;
            }
            else
            {
                return Total / PageSize + 1;
            }
        }

        //总条数
        protected int showTotal(string strSql)
        {
            BasicPage bp = new BasicPage();
            int intTotal = 0;
            SqlDataReader myread = bp.getRead("select count(id) as CountId from tb_manager_log where " + strSql);
            if (myread.Read())
            {
                intTotal = Convert.ToInt32(myread["CountId"].ToString());
            }
            myread.Close();
            return intTotal;
        }
    }
}