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Article。
/// </summary>
public class Article
{
public Article()
{}
#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 Article");
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 Article ");
if (strWhere.Trim() != "")
{
strSql.Append(" where " + strWhere);
}
return Convert.ToInt32(DbHelperOleDb.GetSingle(strSql.ToString()));
}
/// <summary>
/// 返回该类别下的所有记录总数
/// </summary>
/// <param name="strWhere">条件</param>
/// <param name="classId">类别</param>
/// <param name="kindId">种类</param>
/// <returns></returns>
public int GetCount(string strWhere, int classId, int kindId)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select count(*) as H ");
strSql.Append(" from Article ");
strSql.Append(" where ClassId in(select Id from Channel where KindId=" + kindId + " and ClassList like '%," + classId + ",%')");
if (strWhere.Trim() != "")
{
strSql.Append(" and " + strWhere);
}
return Convert.ToInt32(DbHelperOleDb.GetSingle(strSql.ToString()));
}
/// <summary>
/// 增加一条数据
/// </summary>
public void Add(DtCms.Model.Article model)
{
StringBuilder strSql=new StringBuilder();
strSql.Append("insert into Article(");
strSql.Append("Title,Author,Form,Keyword,Zhaiyao,ClassId,ImgUrl,Daodu,Content,Click,IsMsg,IsTop,IsRed,IsHot,IsSlide,IsLock,AddTime)");
strSql.Append(" values (");
strSql.Append("@Title,@Author,@Form,@Keyword,@Zhaiyao,@ClassId,@ImgUrl,@Daodu,@Content,@Click,@IsMsg,@IsTop,@IsRed,@IsHot,@IsSlide,@IsLock,@AddTime)");
OleDbParameter[] parameters = {
new OleDbParameter("@Title", OleDbType.VarWChar,200),
new OleDbParameter("@Author", OleDbType.VarWChar,50),
new OleDbParameter("@Form", OleDbType.VarWChar,100),
new OleDbParameter("@Keyword", OleDbType.VarWChar,100),
new OleDbParameter("@Zhaiyao", OleDbType.VarWChar,250),
new OleDbParameter("@ClassId", OleDbType.Integer,4),
new OleDbParameter("@ImgUrl", OleDbType.VarWChar,250),
new OleDbParameter("@Daodu", OleDbType.VarWChar,250),
new OleDbParameter("@Content", OleDbType.VarWChar),
new OleDbParameter("@Click", OleDbType.Integer,4),
new OleDbParameter("@IsMsg", OleDbType.Integer,4),
new OleDbParameter("@IsTop", OleDbType.Integer,4),
new OleDbParameter("@IsRed", OleDbType.Integer,4),
new OleDbParameter("@IsHot", OleDbType.Integer,4),
new OleDbParameter("@IsSlide", OleDbType.Integer,4),
new OleDbParameter("@IsLock", OleDbType.Integer,4),
new OleDbParameter("@AddTime", OleDbType.Date)};
parameters[0].Value = model.Title;
parameters[1].Value = model.Author;
parameters[2].Value = model.Form;
parameters[3].Value = model.Keyword;
parameters[4].Value = model.Zhaiyao;
parameters[5].Value = model.ClassId;
parameters[6].Value = model.ImgUrl;
parameters[7].Value = model.Daodu;
parameters[8].Value = model.Content;
parameters[9].Value = model.Click;
parameters[10].Value = model.IsMsg;
parameters[11].Value = model.IsTop;
parameters[12].Value = model.IsRed;
parameters[13].Value = model.IsHot;
parameters[14].Value = model.IsSlide;
parameters[15].Value = model.IsLock;
parameters[16].Value = model.AddTime;
DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
}
/// <summary>
/// 修改一条数据
/// </summary>
public void UpdateField(int Id, string strValue)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Article set " + strValue);
strSql.Append(" where Id=" + Id);
DbHelperOleDb.ExecuteSql(strSql.ToString());
}
/// <summary>
/// 更新一条数据
/// </summary>
public void Update(DtCms.Model.Article model)
{
StringBuilder strSql=new StringBuilder();
strSql.Append("update Article set ");
strSql.Append("Title=@Title,");
strSql.Append("Author=@Author,");
strSql.Append("Form=@Form,");
strSql.Append("Keyword=@Keyword,");
strSql.Append("Zhaiyao=@Zhaiyao,");
strSql.Append("ClassId=@ClassId,");
strSql.Append("ImgUrl=@ImgUrl,");
strSql.Append("Daodu=@Daodu,");
strSql.Append("Content=@Content,");
strSql.Append("Click=@Click,");
strSql.Append("IsMsg=@IsMsg,");
strSql.Append("IsTop=@IsTop,");
strSql.Append("IsRed=@IsRed,");
strSql.Append("IsHot=@IsHot,");
strSql.Append("IsSlide=@IsSlide,");
strSql.Append("IsLock=@IsLock,");
strSql.Append("AddTime=@AddTime");
strSql.Append(" where Id=@Id ");
OleDbParameter[] parameters = {
new OleDbParameter("@Title", OleDbType.VarWChar,200),
new OleDbParameter("@Author", OleDbType.VarWChar,50),
new OleDbParameter("@Form", OleDbType.VarWChar,100),
new OleDbParameter("@Keyword", OleDbType.VarWChar,100),
new OleDbParameter("@Zhaiyao", OleDbType.VarWChar,250),
new OleDbParameter("@ClassId", OleDbType.Integer,4),
new OleDbParameter("@ImgUrl", OleDbType.VarWChar,250),
new OleDbParameter("@Daodu", OleDbType.VarWChar,250),
new OleDbParameter("@Content", OleDbType.VarWChar),
new OleDbParameter("@Click", OleDbType.Integer,4),
new OleDbParameter("@IsMsg", OleDbType.Integer,4),
new OleDbParameter("@IsTop", OleDbType.Integer,4),
new OleDbParameter("@IsRed", OleDbType.Integer,4),
new OleDbParameter("@IsHot", OleDbType.Integer,4),
new OleDbParameter("@IsSlide", OleDbType.Integer,4),
new OleDbParameter("@IsLock", OleDbType.Integer,4),
new OleDbParameter("@AddTime", OleDbType.Date),
new OleDbParameter("@Id", OleDbType.Integer,4)};
parameters[0].Value = model.Title;
parameters[1].Value = model.Author;
parameters[2].Value = model.Form;
parameters[3].Value = model.Keyword;
parameters[4].Value = model.Zhaiyao;
parameters[5].Value = model.ClassId;
parameters[6].Value = model.ImgUrl;
parameters[7].Value = model.Daodu;
parameters[8].Value = model.Content;
parameters[9].Value = model.Click;
parameters[10].Value = model.IsMsg;
parameters[11].Value = model.IsTop;
parameters[12].Value = model.IsRed;
parameters[13].Value = model.IsHot;
parameters[14].Value = model.IsSlide;
parameters[15].Value = model.IsLock;
parameters[16].Value = model.AddTime;
parameters[17].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 Article ");
strSql.Append(" where Id=@Id ");
OleDbParameter[] parameters = {
new OleDbParameter("@Id", OleDbType.Integer,4)};
parameters[0].Value = Id;
DbHelperOleDb.ExecuteSql(strSql.ToString(),parameters);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public DtCms.Model.Article GetModel(int Id)
{
StringBuilder strSql=new StringBuilder();
strSql.Append("select top 1 Id,Title,Author,Form,Keyword,Zhaiyao,ClassId,ImgUrl,Daodu,Content,Click,IsMsg,IsTop,IsRed,IsHot,IsSlide,IsLock,AddTime from Article ");
strSql.Append(" where Id=@Id ");
OleDbParameter[] parameters = {
new OleDbParameter("@Id", OleDbType.Integer,4)};
parameters[0].Value = Id;
DtCms.Model.Article model=new DtCms.Model.Article();
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();
model.Author=ds.Tables[0].Rows[0]["Author"].ToString();
model.Form=ds.Tables[0].Rows[0]["Form"].ToString();
model.Keyword=ds.Tables[0].Rows[0]["Keyword"].ToString();
model.Zhaiyao=ds.Tables[0].Rows[0]["Zhaiyao"].ToString();
if(ds.Tables[0].Rows[0]["ClassId"].ToString()!="")
{
model.ClassId=int.Parse(ds.Tables[0].Rows[0]["ClassId"].ToString());
}
model.ImgUrl=ds.Tables[0].Rows[0]["ImgUrl"].ToString();
model.Daodu=ds.Tables[0].Rows[0]["Daodu"].ToString();
model.Content=ds.Tables[0].Rows[0]["Content"].ToString();
if(ds.Tables[0].Rows[0]["Click"].ToString()!="")
{
model.Click=int.Parse(ds.Tables[0].Rows[0]["Click"].ToString());
}
if(ds.Tables[0].Rows[0]["IsMsg"].ToString()!="")
{
model.IsMsg=int.Parse(ds.Tables[0].Rows[0]["IsMsg"].ToString());
}
if(ds.Tables[0].Rows[0]["IsTop"].ToString()!="")
{
model.IsTop=int.Parse(ds.Tables[0].Rows[0]["IsTop"].ToString());
}
if(ds.Tables[0].Rows[0]["IsRed"].ToString()!="")
{
model.IsRed=int.Parse(ds.Tables[0].Rows[0]["IsRed"].ToString());
}
if(ds.Tables[0].Rows[0]["IsHot"].ToString()!="")
{
model.IsHot=int.Parse(ds.Tables[0].Rows[0]["IsHot"].ToString());
}
if(ds.Tables[0].Rows[0]["IsSlide"].ToString()!="")
{
model.IsSlide=int.Parse(ds.Tables[0].Rows[0]["IsSlide"].ToString());
}
if(ds.Tables[0].Rows[0]["IsLock"].ToString()!="")
{
model.IsLock=int.Parse(ds.Tables[0].Rows[0]["IsLock"].ToString());
}
if(ds.Tables[0].Rows[0]["AddTime"].ToString()!="")
{
model.AddTime=DateTime.Parse(ds.Tables[0].Rows[0]["AddTime"].ToString());
}
return model;
}
else
{
return null;
}
}
/// <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,Author,Form,Keyword,Zhaiyao,ClassId,ImgUrl,Daodu,Content,Click,IsMsg,IsTop,IsRed,IsHot,IsSlide,IsLock,AddTime ");
strSql.Append(" FROM Article ");
if(strWhere.Trim()!="")
{
strSql.Append(" where "+strWhere);
}
strSql.Append(" order by " + filedOrder);
return DbHelperOleDb.Query(strSql.ToString());
}
/// <summary>
/// 获得指定的类别下所有文章
/// </summary>
public DataSet GetList(int classId, int kindId, 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,Author,Form,Keyword,Zhaiyao,ClassId,ImgUrl,Daodu,Content,Click,IsMsg,IsTop,IsRed,IsHot,IsSlide,IsLock,AddTime ");
strSql.Append(" FROM Article");
strSql.Append(" where ClassId in(select Id from Channel where KindId=" + kindId + " and ClassList like '%," + classId + ",%')");
if (strWhere.Trim() != "")
{
strSql.Append(" and " + strWhere);
}
strSql.Append(" order by " + filedOrder);
return DbHelperOleDb.Query(strSql.ToString());
}
/// <summary>
/// 获得查询分页数据
/// </summary>
public DataSet GetPageList(int pageSize, int currentPage, string strWhere, string filedOrder)
{
StringBuilder strSql = new StringBuilder();
if (currentPage > 0)
{
int topNum = pageSize * currentPage;
strSql.Append("select top " + pageSize + " Id,Title,Author,Form,Keyword,Zhaiyao,ClassId,ImgUrl,Daodu,Content,Click,IsMsg,IsTop,IsRed,IsHot,IsSlide,IsLock,AddTime from Article");
strSql.Append(" where Id not in(select top " + topNum + " Id from Article");
if (strWhere.Trim() != "")
{
strSql.Append(" where " + strWhere);
}
strSql.Append(" order by " + filedOrder + ")");
if (strWhere.Trim() != "")
{
strSql.Append(" and " + strWhere);
}
strSql.Append(" order by " + filedOrder);
}
else
{
strSql.Append("select top " + pageSize + " Id,Title,Author,Form,Keyword,Zhaiyao,ClassId,ImgUrl,Daodu,Content,Click,IsMsg,IsTop,IsRed,IsHot,IsSlide,IsLock,AddTime from Article");
if (strWhere.Trim() != "")
{
strSql.Append(" where " + strWhere);
}
strSql.Append(" order by " + filedOrder);
}
return DbHelperOleDb.Query(strSql.ToString());
}
#endregion 成员方法
}
}
