/// <summary>
/// 通过用户名得到用户Id，返回用户Id
/// </summary>
/// <param name="userName"></param>
/// <returns></returns>
public int GainUserId(string userName)
{
User_dal user = new User_dal();
int userId = (int)user.GetUserId(userName);
return(userId);
}
/// <summary>
/// 通过用户名查询该用户的ID，
/// 成功返回1
/// 失败返回0
/// </summary>
/// <param name="userName"></param>
/// <returns></returns>
public int GetUserId(string userName)
{
User_dal user_dal = new User_dal();
object userId = user_dal.GetUserId(userName);
if (userId == null || userId == System.DBNull.Value)
{
return(0);
}
return((int)userId);
}
/// <summary>
/// 执行关注，取消关注或不执行操作的逻辑判断
/// 执行操作返回1，无操作返回0
/// </summary>
/// <param name="concernName"></param>
/// <param name="beConcernName"></param>
/// <param name="Num"></param>
/// <returns></returns>
public int LgGuanZhuUser(string concernName, string beConcernName, string Num)
{
User_dal user_dal = new User_dal();
int concernNameId = Convert.ToInt32(user_dal.GetUserId(concernName));
int beConcernNameId = Convert.ToInt32(user_dal.GetUserId(beConcernName));
object exist = user_dal.select_ConIdAndBeConId(concernNameId, beConcernNameId); //查询记录是否存在，null或concernNameId
if (exist == null && Num == "1") //无关注记录，只可插入不可删除
{
return(user_dal.insert_IdTotb_Attention(concernNameId, beConcernNameId));
}
else if (exist != null && Num == "0")//有关注记录，只可删除不可插入
{
return(user_dal.delete_IdFromtb_Attention(concernNameId, beConcernNameId));
}
else
{
return(0);
}
}