/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(JC.Model.logs model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update logs set ");
strSql.Append("username=@username,");
strSql.Append("logtype=@logtype,");
strSql.Append("loginfo=@loginfo,");
strSql.Append("postdate=@postdate");
strSql.Append(" where id=@id");
SQLiteParameter[] parameters =
{
new SQLiteParameter("@username", DbType.String),
new SQLiteParameter("@logtype", DbType.String),
new SQLiteParameter("@loginfo", DbType.String),
new SQLiteParameter("@postdate", DbType.DateTime),
new SQLiteParameter("@id", DbType.Int32, 8)
};
parameters[0].Value = model.username;
parameters[1].Value = model.logtype;
parameters[2].Value = model.loginfo;
parameters[3].Value = model.postdate;
parameters[4].Value = model.id;
int rows = DbHelperSQLite.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public JC.Model.logs DataRowToModel(DataRow row)
{
JC.Model.logs model = new JC.Model.logs();
if (row != null)
{
if (row["id"] != null && row["id"].ToString() != "")
{
model.id = int.Parse(row["id"].ToString());
}
if (row["username"] != null)
{
model.username = row["username"].ToString();
}
if (row["logtype"] != null)
{
model.logtype = row["logtype"].ToString();
}
if (row["loginfo"] != null)
{
model.loginfo = row["loginfo"].ToString();
}
if (row["postdate"] != null && row["postdate"].ToString() != "")
{
model.postdate = DateTime.Parse(row["postdate"].ToString());
}
}
return(model);
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(JC.Model.logs model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into logs(");
strSql.Append("username,logtype,loginfo,postdate)");
strSql.Append(" values (");
strSql.Append("@username,@logtype,@loginfo,@postdate)");
strSql.Append(";select LAST_INSERT_ROWID()");
SQLiteParameter[] parameters =
{
new SQLiteParameter("@username", DbType.String),
new SQLiteParameter("@logtype", DbType.String),
new SQLiteParameter("@loginfo", DbType.String),
new SQLiteParameter("@postdate", DbType.DateTime)
};
parameters[0].Value = model.username;
parameters[1].Value = model.logtype;
parameters[2].Value = model.loginfo;
parameters[3].Value = model.postdate;
object obj = DbHelperSQLite.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public JC.Model.logs GetModel(int id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select id,username,logtype,loginfo,postdate from logs ");
strSql.Append(" where id=@id");
SQLiteParameter[] parameters =
{
new SQLiteParameter("@id", DbType.Int32, 4)
};
parameters[0].Value = id;
JC.Model.logs model = new JC.Model.logs();
DataSet ds = DbHelperSQLite.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
