/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(TSIMSServer.Model.t_book_order model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update t_book_order set ");
strSql.Append("isbn=@isbn,");
strSql.Append("user_num=@user_num");
strSql.Append(" where id=@id");
MySqlParameter[] parameters =
{
new MySqlParameter("@isbn", MySqlDbType.VarChar, 50),
new MySqlParameter("@user_num", MySqlDbType.VarChar, 50),
new MySqlParameter("@id", MySqlDbType.Int32, 11)
};
parameters[0].Value = model.isbn;
parameters[1].Value = model.user_num;
parameters[2].Value = model.id;
int rows = DbHelperMySQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public bool Add(TSIMSServer.Model.t_book_order model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into t_book_order(");
strSql.Append("isbn,user_num)");
strSql.Append(" values (");
strSql.Append("@isbn,@user_num)");
MySqlParameter[] parameters =
{
new MySqlParameter("@isbn", MySqlDbType.VarChar, 50),
new MySqlParameter("@user_num", MySqlDbType.VarChar, 50)
};
parameters[0].Value = model.isbn;
parameters[1].Value = model.user_num;
int rows = DbHelperMySQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public TSIMSServer.Model.t_book_order DataRowToModel(DataRow row)
{
TSIMSServer.Model.t_book_order model = new TSIMSServer.Model.t_book_order();
if (row != null)
{
if (row["id"] != null && row["id"].ToString() != "")
{
model.id = int.Parse(row["id"].ToString());
}
if (row["isbn"] != null)
{
model.isbn = row["isbn"].ToString();
}
if (row["user_num"] != null)
{
model.user_num = row["user_num"].ToString();
}
}
return(model);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public TSIMSServer.Model.t_book_order GetModel(int id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select id,isbn,user_num from t_book_order ");
strSql.Append(" where id=@id");
MySqlParameter[] parameters =
{
new MySqlParameter("@id", MySqlDbType.Int32)
};
parameters[0].Value = id;
TSIMSServer.Model.t_book_order model = new TSIMSServer.Model.t_book_order();
DataSet ds = DbHelperMySQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
