我建立了一个基于反应的投票系统,该系统允许不和谐服务器中的用户投票给某人,并根据他们的投票给他们x积分,例如EG 5星评级10分。 >
所有这些数字然后与投票给他们的人一起添加到SQL Server数据库中,并进行DateTime
投票。
我现在要弄清楚的是如何为被投票的人添加/删除角色。例如,一旦成员获得100分,他们便被分配了X角色,如果其得分低于100,则该角色将被删除。
我正在努力弄清楚如何编写SQL Function
以获取此信息-我认为我有足够的信心编写c#来实现这一点。
我的表格中的字段是
如何将数据存储到数据库的示例
var message = (RestUserMessage) await channel.GetMessageAsync(SherpaReact.CatchReaction);
if (reaction.MessageId == SherpaReact.CatchReaction && reaction.UserId == SherpaReact.UserReaction) {
SqlCommand command;
command = new SqlCommand($ @ "EXECUTE dbo.AddSherpa @Points = @@Points, @Sherpa = @@Sherpa, @VotedBy = @@VotedBy, @Date = @@Date", StaticObjects._connection);
if (reaction.Emote.Name == "1\u20e3") {
await message.DeleteAsync();
SqlParameter PointsParam = new SqlParameter {
ParameterName = "@@Points",
Value = (long) - 8
};
command.Parameters.Add(PointsParam);
SqlParameter SherpaParam = new SqlParameter {
ParameterName = "@@Sherpa",
Value = (long) SherpaReact.Sherpa.Id
};
command.Parameters.Add(SherpaParam);
SqlParameter VotedByParam = new SqlParameter {
ParameterName = "@@VotedBy",
Value = (long) SherpaReact.UserReaction
};
command.Parameters.Add(VotedByParam);
SqlParameter DateParam = new SqlParameter {
ParameterName = "@@Date",
Value = DateTime.Now
};
command.Parameters.Add(DateParam);
command.ExecuteNonQuery();
var sherpa = SherpaReact.Sherpa.Nickname.Contains("(") ? SherpaReact.Sherpa.Nickname.Substring(0, SherpaReact.Sherpa.Nickname.IndexOf("(") - 1) : SherpaReact.Sherpa.Nickname;
EmbedBuilder eb = new EmbedBuilder() {
Title = "Vote Accepted",
Description = $ "Thanks for voting for {sherpa}",
Color = new Color(127, 127, 0)
};
IUserMessage msg = await channel.SendMessageAsync(embed: eb.Build());
_ = Task.Run(() => DeleteMessagesAsync(msg));
}
我已经做了一个简单的功能,只是返回夏尔巴人迄今获得的所有积分的总和,但是如果有人可以指出我的意思,我将无法解决该问题。正确的方向将不胜感激。
CREATE FUNCTION [dbo].[GetSherpaPoints]
(
)
RETURNS @returntable TABLE
(
Sherpa BIGINT,
Points BIGINT
)
AS
BEGIN
INSERT @returntable
SELECT
[Sherpa],
SUM([Points]) AS [PointsSum]
FROM
[dbo].[SherpaVotes]
WHERE
[Sherpa] = Sherpa
GROUP BY
[Sherpa]
ORDER BY
[PointsSum] DESC
RETURN
END
答案 0 :(得分:1)
您可以为案件做些事情:
SELECT
Sherpa,
CASE
WHEN Points < 100 THEN 'NoRole'
WHEN Points >= 100 AND Points < 200 THEN 'Role1'
WHEN Points >= 200 AND Points < 300 THEN 'Role2' -- And so on...
END as Role
FROM @Results;
用于尽可能少的角色。 如果您的工作量很大,则应创建一个包含点的最小值和最大值的角色表,并据此进行计算。
编辑: 这应该按照您的评论进行操作
CREATE FUNCTION [dbo].[GetSherpaPoints]
(
)
RETURNS @returntable TABLE
(
Sherpa BIGINT,
Role nvarchar(20)
)
AS
BEGIN
INSERT @returntable
SELECT
[Sherpa],
CASE
WHEN SUM(Points) < 100 THEN 'NoRole'
WHEN SUM(Points) >= 100 AND SUM(Points) < 200 THEN 'Role1'
WHEN SUM(Points) >= 200 AND SUM(Points) < 300 THEN 'Role2' -- And so on...
END as Role
FROM
[dbo].[SherpaVotes]
WHERE
[Sherpa] = Sherpa
GROUP BY
[Sherpa]
ORDER BY
[PointsSum] DESC
RETURN
END