/// <summary>
/// 增加一条数据
/// </summary>
public int Add(BookShop.Model.BookComment model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into BookComment(");
strSql.Append("Msg,CreateDateTime,BookId)");
strSql.Append(" values (");
strSql.Append("@Msg,@CreateDateTime,@BookId)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@Msg", SqlDbType.NVarChar, -1),
new SqlParameter("@CreateDateTime", SqlDbType.DateTime),
new SqlParameter("@BookId", SqlDbType.Int, 4)
};
parameters[0].Value = model.Msg;
parameters[1].Value = model.CreateDateTime;
parameters[2].Value = model.BookId;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(BookShop.Model.BookComment model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update BookComment set ");
strSql.Append("Msg=@Msg,");
strSql.Append("CreateDateTime=@CreateDateTime,");
strSql.Append("BookId=@BookId");
strSql.Append(" where Id=@Id");
SqlParameter[] parameters =
{
new SqlParameter("@Msg", SqlDbType.NVarChar, -1),
new SqlParameter("@CreateDateTime", SqlDbType.DateTime),
new SqlParameter("@BookId", SqlDbType.Int, 4),
new SqlParameter("@Id", SqlDbType.Int, 4)
};
parameters[0].Value = model.Msg;
parameters[1].Value = model.CreateDateTime;
parameters[2].Value = model.BookId;
parameters[3].Value = model.Id;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 获得数据列表
/// </summary>
public List <BookShop.Model.BookComment> DataTableToList(DataTable dt)
{
List <BookShop.Model.BookComment> modelList = new List <BookShop.Model.BookComment>();
int rowsCount = dt.Rows.Count;
if (rowsCount > 0)
{
BookShop.Model.BookComment model;
for (int n = 0; n < rowsCount; n++)
{
model = new BookShop.Model.BookComment();
if (dt.Rows[n]["Id"].ToString() != "")
{
model.Id = int.Parse(dt.Rows[n]["Id"].ToString());
}
model.Msg = dt.Rows[n]["Msg"].ToString();
if (dt.Rows[n]["CreateDateTime"].ToString() != "")
{
model.CreateDateTime = DateTime.Parse(dt.Rows[n]["CreateDateTime"].ToString());
}
if (dt.Rows[n]["BookId"].ToString() != "")
{
model.BookId = int.Parse(dt.Rows[n]["BookId"].ToString());
}
modelList.Add(model);
}
}
return(modelList);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public BookShop.Model.BookComment GetModel(int Id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 Id,Msg,CreateDateTime,BookId from BookComment ");
strSql.Append(" where Id=@Id ");
SqlParameter[] parameters =
{
new SqlParameter("@Id", SqlDbType.Int, 4)
};
parameters[0].Value = Id;
BookShop.Model.BookComment model = new BookShop.Model.BookComment();
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());
}
model.Msg = ds.Tables[0].Rows[0]["Msg"].ToString();
if (ds.Tables[0].Rows[0]["CreateDateTime"].ToString() != "")
{
model.CreateDateTime = DateTime.Parse(ds.Tables[0].Rows[0]["CreateDateTime"].ToString());
}
if (ds.Tables[0].Rows[0]["BookId"].ToString() != "")
{
model.BookId = int.Parse(ds.Tables[0].Rows[0]["BookId"].ToString());
}
return(model);
}
else
{
return(null);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public BookShop.Model.BookComment DataRowToModel(DataRow row)
{
BookShop.Model.BookComment model = new BookShop.Model.BookComment();
if (row != null)
{
if (row["Id"] != null && row["Id"].ToString() != "")
{
model.Id = int.Parse(row["Id"].ToString());
}
if (row["Msg"] != null)
{
model.Msg = row["Msg"].ToString();
}
if (row["CreateDateTime"] != null && row["CreateDateTime"].ToString() != "")
{
model.CreateDateTime = DateTime.Parse(row["CreateDateTime"].ToString());
}
if (row["BookId"] != null && row["BookId"].ToString() != "")
{
model.BookId = int.Parse(row["BookId"].ToString());
}
}
return(model);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public BookShop.Model.BookComment DataRowToModel(DataRow row)
{
BookShop.Model.BookComment model=new BookShop.Model.BookComment();
if (row != null)
{
if(row["Id"]!=null && row["Id"].ToString()!="")
{
model.Id=int.Parse(row["Id"].ToString());
}
if(row["Msg"]!=null)
{
model.Msg=row["Msg"].ToString();
}
if(row["CreateDateTime"]!=null && row["CreateDateTime"].ToString()!="")
{
model.CreateDateTime=DateTime.Parse(row["CreateDateTime"].ToString());
}
if(row["BookId"]!=null && row["BookId"].ToString()!="")
{
model.BookId=int.Parse(row["BookId"].ToString());
}
}
return model;
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public BookShop.Model.BookComment GetModel(int Id)
{
StringBuilder strSql=new StringBuilder();
strSql.Append("select top 1 Id,Msg,CreateDateTime,BookId from BookComment ");
strSql.Append(" where Id=@Id");
SqlParameter[] parameters = {
new SqlParameter("@Id", SqlDbType.Int,4)
};
parameters[0].Value = Id;
BookShop.Model.BookComment model=new BookShop.Model.BookComment();
DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters);
if(ds.Tables[0].Rows.Count>0)
{
return DataRowToModel(ds.Tables[0].Rows[0]);
}
else
{
return null;
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public void Update(BookShop.Model.BookComment model)
{
dal.Update(model);
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(BookShop.Model.BookComment model)
{
return(dal.Add(model));
}