using System;
using System.Data;
using System.Text;
using System.Data.OleDb;
using DtCms.DBUtility;//请先添加引用
namespace DtCms.DAL
{
/// <summary>
/// 数据访问类Advertising。
/// </summary>
public class Advertising
{
public Advertising()
{ }
#region 成员方法
/// <summary>
/// 是否存在该记录
/// </summary>
public bool Exists(int Id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select count(1) from Advertising");
strSql.Append(" where Id=@Id ");
OleDbParameter[] parameters = {
new OleDbParameter("@Id", OleDbType.Integer,4)};
parameters[0].Value = Id;
return DbHelperOleDb.Exists(strSql.ToString(), parameters);
}
/// <summary>
/// 返回长查询数据总数 （分页用到）
/// </summary>
public int GetCount(string strWhere)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select count(*) as H ");
strSql.Append(" from Advertising ");
if (strWhere.Trim() != "")
{
strSql.Append(" where " + strWhere);
}
return Convert.ToInt32(DbHelperOleDb.GetSingle(strSql.ToString()));
}
/// <summary>
/// 增加一条数据
/// </summary>
public void Add(DtCms.Model.Advertising model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Advertising(");
strSql.Append("Title,AdType,AdRemark,AdNum,AdPrice,AdWidth,AdHeight,AdTarget)");
strSql.Append(" values (");
strSql.Append("@Title,@AdType,@AdRemark,@AdNum,@AdPrice,@AdWidth,@AdHeight,@AdTarget)");
OleDbParameter[] parameters = {
new OleDbParameter("@Title", OleDbType.VarWChar,100),
new OleDbParameter("@AdType", OleDbType.Integer,4),
new OleDbParameter("@AdRemark", OleDbType.VarWChar,0),
new OleDbParameter("@AdNum", OleDbType.Integer,4),
new OleDbParameter("@AdPrice", OleDbType.Decimal,9),
new OleDbParameter("@AdWidth", OleDbType.Integer,4),
new OleDbParameter("@AdHeight", OleDbType.Integer,4),
new OleDbParameter("@AdTarget", OleDbType.VarWChar,50)};
parameters[0].Value = model.Title;
parameters[1].Value = model.AdType;
parameters[2].Value = model.AdRemark;
parameters[3].Value = model.AdNum;
parameters[4].Value = model.AdPrice;
parameters[5].Value = model.AdWidth;
parameters[6].Value = model.AdHeight;
parameters[7].Value = model.AdTarget;
DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
}
/// <summary>
/// 更新一条数据
/// </summary>
public void Update(DtCms.Model.Advertising model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Advertising set ");
strSql.Append("Title=@Title,");
strSql.Append("AdType=@AdType,");
strSql.Append("AdRemark=@AdRemark,");
strSql.Append("AdNum=@AdNum,");
strSql.Append("AdPrice=@AdPrice,");
strSql.Append("AdWidth=@AdWidth,");
strSql.Append("AdHeight=@AdHeight,");
strSql.Append("AdTarget=@AdTarget");
strSql.Append(" where Id=@Id ");
OleDbParameter[] parameters = {
new OleDbParameter("@Title", OleDbType.VarWChar,100),
new OleDbParameter("@AdType", OleDbType.Integer,4),
new OleDbParameter("@AdRemark", OleDbType.VarWChar,0),
new OleDbParameter("@AdNum", OleDbType.Integer,4),
new OleDbParameter("@AdPrice", OleDbType.Decimal,9),
new OleDbParameter("@AdWidth", OleDbType.Integer,4),
new OleDbParameter("@AdHeight", OleDbType.Integer,4),
new OleDbParameter("@AdTarget", OleDbType.VarWChar,50),
new OleDbParameter("@Id", OleDbType.Integer,4)};
parameters[0].Value = model.Title;
parameters[1].Value = model.AdType;
parameters[2].Value = model.AdRemark;
parameters[3].Value = model.AdNum;
parameters[4].Value = model.AdPrice;
parameters[5].Value = model.AdWidth;
parameters[6].Value = model.AdHeight;
parameters[7].Value = model.AdTarget;
parameters[8].Value = model.Id;
DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
}
/// <summary>
/// 删除一条数据
/// </summary>
public void Delete(int Id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("delete from Advertising ");
strSql.Append(" where Id=@Id ");
OleDbParameter[] parameters = {
new OleDbParameter("@Id", OleDbType.Integer,4)};
parameters[0].Value = Id;
DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
//删除该广告位下所有的广告
DelChildAll(Id);
}
/// <summary>
/// 删除该广告位下所有的广告
/// </summary>
/// <param name="Pid"></param>
private void DelChildAll(int Pid)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("delete from Adbanner ");
strSql.Append(" where Aid=@Pid ");
OleDbParameter[] parameters = {
new OleDbParameter("@Pid", OleDbType.Integer,4)};
parameters[0].Value = Pid;
DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public DtCms.Model.Advertising GetModel(int Id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select Id,Title,AdType,AdRemark,AdNum,AdPrice,AdWidth,AdHeight,AdTarget from Advertising ");
strSql.Append(" where Id=@Id ");
OleDbParameter[] parameters = {
new OleDbParameter("@Id", OleDbType.Integer,4)};
parameters[0].Value = Id;
DtCms.Model.Advertising model = new DtCms.Model.Advertising();
DataSet ds = DbHelperOleDb.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());
}
model.Title = ds.Tables[0].Rows[0]["Title"].ToString();
if (ds.Tables[0].Rows[0]["AdType"].ToString() != "")
{
model.AdType = int.Parse(ds.Tables[0].Rows[0]["AdType"].ToString());
}
model.AdRemark = ds.Tables[0].Rows[0]["AdRemark"].ToString();
if (ds.Tables[0].Rows[0]["AdNum"].ToString() != "")
{
model.AdNum = int.Parse(ds.Tables[0].Rows[0]["AdNum"].ToString());
}
if (ds.Tables[0].Rows[0]["AdPrice"].ToString() != "")
{
model.AdPrice = int.Parse(ds.Tables[0].Rows[0]["AdPrice"].ToString());
}
if (ds.Tables[0].Rows[0]["AdWidth"].ToString() != "")
{
model.AdWidth = int.Parse(ds.Tables[0].Rows[0]["AdWidth"].ToString());
}
if (ds.Tables[0].Rows[0]["AdHeight"].ToString() != "")
{
model.AdHeight = int.Parse(ds.Tables[0].Rows[0]["AdHeight"].ToString());
}
model.AdTarget = ds.Tables[0].Rows[0]["AdTarget"].ToString();
return model;
}
else
{
return null;
}
}
/// <summary>
/// 获得数据列表
/// </summary>
public DataSet GetList(string strWhere)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select Id,Title,AdType,AdRemark,AdNum,AdPrice,AdWidth,AdHeight,AdTarget ");
strSql.Append(" FROM Advertising ");
if (strWhere.Trim() != "")
{
strSql.Append(" where " + strWhere);
}
return DbHelperOleDb.Query(strSql.ToString());
}
/// <summary>
/// 获得前几行数据
/// </summary>
public DataSet GetList(int Top, string strWhere, string filedOrder)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select ");
if (Top > 0)
{
strSql.Append(" top " + Top.ToString());
}
strSql.Append(" Id,Title,AdType,AdRemark,AdNum,AdPrice,AdWidth,AdHeight,AdTarget ");
strSql.Append(" FROM Advertising ");
if (strWhere.Trim() != "")
{
strSql.Append(" where " + strWhere);
}
strSql.Append(" order by " + filedOrder);
return DbHelperOleDb.Query(strSql.ToString());
}
#endregion 成员方法
}
}
