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177 Zeilen
5.7 KiB
177 Zeilen
5.7 KiB
using System;
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using System.Data;
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using System.Text;
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using System.Data.SqlClient;
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namespace Basic.DAL
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{
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/// <summary>
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/// 数据访问层
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/// </summary>
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public partial class followproduct
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{
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#region 此代码由工具生成
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/// <summary>
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/// 增加一条数据
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/// </summary>
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public int Add(Basic.Model.followproduct model)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("insert into tb_followproduct(");
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strSql.Append("product_id,add_time,openid)");
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strSql.Append(" values (");
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strSql.Append("@product_id,@add_time,@openid)");
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strSql.Append(";select @@IDENTITY");
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SqlParameter[] parameters =
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{
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new SqlParameter("@product_id", SqlDbType.Int,10),
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new SqlParameter("@add_time", SqlDbType.DateTime,23),
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new SqlParameter("@openid", SqlDbType.NVarChar,255)
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};
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parameters[0].Value = model.product_id;
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parameters[1].Value = model.add_time;
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parameters[2].Value = model.openid;
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object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
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if (obj == null)
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{
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return 0;
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}
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else
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{
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return Convert.ToInt32(obj);
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}
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}
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/// <summary>
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/// 删除一条数据
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/// </summary>
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public bool Delete(int id)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("delete from tb_followproduct");
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strSql.Append(" where id=@id");
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SqlParameter[] parameters = {
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new SqlParameter("@id", SqlDbType.Int,4)};
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parameters[0].Value = id;
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int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
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if (rows > 0)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 获得前几行数据
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/// </summary>
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public DataSet GetList(int Top, string strWhere, string filedOrder)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("select ");
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if (Top > 0)
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{
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strSql.Append(" top " + Top.ToString());
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}
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strSql.Append("product_id,add_time,openid from tb_followproduct");
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strSql.Append(" from tb_followproduct");
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if (strWhere.Trim() != "")
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{
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strSql.Append(" where " + strWhere);
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}
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strSql.Append(" order by " + filedOrder);
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return DbHelperSQL.Query(strSql.ToString());
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}
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/// <summary>
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/// 获得查询分页数据
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/// </summary>
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public DataSet GetList(string _strWhere, string _orderby, int _pageSize, int _page, out int recordCount)
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{
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BasicPage bp = new BasicPage();
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StringBuilder str_Sql = new StringBuilder();
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str_Sql.Append("select top " + _pageSize + " product_id,add_time,openid from tb_followproduct");
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str_Sql.Append(" where ");
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str_Sql.Append(_strWhere);
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str_Sql.Append(" and id not in ");
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str_Sql.Append(" ( ");
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str_Sql.Append(" select top " + (_page - 1) * _pageSize + " id from tb_followproduct ");
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str_Sql.Append(" where ");
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str_Sql.Append(_strWhere);
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str_Sql.Append(" order by ");
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str_Sql.Append(_orderby);
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str_Sql.Append(" ) ");
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str_Sql.Append(" order by ");
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str_Sql.Append(_orderby);
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DataSet dst = bp.SelectDataBase("tb_followproduct", str_Sql.ToString());
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//
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recordCount = totlePage(showTotal(_strWhere), _pageSize);
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return dst;
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}
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//总页数
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public int totlePage(int Total, int PageSize)
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{
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if (Total % PageSize == 0)
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{
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return Total / PageSize;
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}
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else
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{
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return Total / PageSize + 1;
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}
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}
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//总条数
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public int showTotal(string strSql)
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{
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BasicPage bp = new BasicPage();
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int intTotal = 0;
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SqlDataReader myread = bp.getRead("select count(id) as CountId from tb_shopcart where " + strSql);
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if (myread.Read())
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{
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intTotal = Convert.ToInt32(myread["CountId"].ToString());
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}
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myread.Close();
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return intTotal;
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}
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/// <summary>
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/// 是否存在该记录
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/// </summary>
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public bool Exists(int id)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("select count(1) from tb_followproduct");
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strSql.Append(" where product_id=@product_id");
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SqlParameter[] parameters =
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{
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new SqlParameter("@product_id", SqlDbType.Int,10)
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};
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parameters[0].Value = id;
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return DbHelperSQL.Exists(strSql.ToString(), parameters);
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}
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/// <summary>
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/// 修改一列数据
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/// </summary>
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public void UpdateField(int id, string strValue)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("update tb_followproduct set " + strValue);
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strSql.Append(" where id=" + id);
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DbHelperSQL.ExecuteSql(strSql.ToString());
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}
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#endregion
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}
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}
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