与 nextcord 的反应作用

Question

在我的 Nextcord 机器人上，我想添加一个反应角色系统。我试过这段代码：

@commands.Cog.listener()
async def on_raw_reaction_add(self, payload):
    message_id = payload.message_id
    if message_id == 930812411097796618:
        guild_id = payload.guild_id
        guild = nextcord.utils.find(lambda g: g.id == guild_id, self.bot.guilds)
        if payload.emoji.name == "tada":
            role = nextcord.utils.get(guild.roles, id=896417683153752104)
        elif payload.emoji.name == "nut_and_bolt":
            role = nextcord.utils.get(guild.roles, id=896417735473528832)
        elif payload.emoji.name == "microphone":
            role = nextcord.utils.get(guild.roles, id=896417789458403368)
        elif payload.emoji.name == "part_alternation_mark":
            role = nextcord.utils.get(guild.roles, id=896417886724313128)
        elif payload.emoji.name == "desktop":
            role = nextcord.utils.get(guild.roles, id=896397761770053682)
        elif payload.emoji.name == "screwdriver":
            role = nextcord.utils.get(guild.roles, id=896397839784083496)
        elif payload.emoji.name == "wrench":
            role = nextcord.utils.get(guild.roles, id=896398445487726613)
        elif payload.emoji.name == "elephant":
            role = nextcord.utils.get(guild.roles, id=922184344238444596)
        elif payload.emoji.name == "gem":
            role = nextcord.utils.get(guild.roles, id=896398489376944138)
        elif payload.emoji.name == "mobile_phone":
            role = nextcord.utils.get(guild.roles, id=896398561179226133)
        elif payload.emoji.name == "bird":
            role = nextcord.utils.get(guild.roles, id=896398605873729547)
        elif payload.emoji.name == "floppy_disk":
            role = nextcord.utils.get(guild.roles, id=896398741605584936)
        elif payload.emoji.name == "hash":
            role = nextcord.utils.get(guild.roles, id=896398802204913664)
        elif payload.emoji.name == "snake":
            role = nextcord.utils.get(guild.roles, id=896398888817283113)
        else:
            channel = self.bot.get_channel(930598926174781460)
            embed = nextcord.Embed(title="An error occured")
            await channel.send(embed=embed)

        if role is not None:
            member = nextcord.utils.find(lambda m: m.id == payload.user_id, guild.members)
            if member is not None:
                await member.add_roles(role)
            else:
                channel = self.bot.get_channel(930598926174781460)
                embed = nextcord.Embed(title="An error occured")
                await channel.send(embed=embed)
        else:
            channel = self.bot.get_channel(930598926174781460)
            embed = nextcord.Embed(title="None")
            await channel.send(embed=embed)

我遵循了 this YouTube 教程（我确实将 discord 更改为 nextcord），但它似乎不起作用。这是执行代码后的控制台：

我不知道这是什么意思，所以我无法解决我的问题。

Answer 1

请注意，当 payload.emoji.name 不等于列出的任何一个时，此代码为运行:

        else:
            channel = self.bot.get_channel(930598926174781460)
            embed = nextcord.Embed(title="An error occured")
            await channel.send(embed=embed)

然后您尝试运行以下代码，它引用名称“角色”：

if role is not None:

但是，如果 payload.emoji.name 不等于列出的任何一个，则角色不会被绑定，并且您会因尝试使用不存在的变量而出错。

解决方案

你可以通过在上面的块中添加一个return语句来解决这个问题，就像这样：

        else:
            channel = self.bot.get_channel(930598926174781460)
            embed = nextcord.Embed(title="An error occured")
            await channel.send(embed=embed)
            return

如果在尝试使用角色之前没有设置角色，这将停止该功能，因此它应该可以解决错误。

您还需要编辑表情符号的名称，否则 payload.emoji.name 将无法匹配任何表情符号，因为它们使用表情符号的 unicode 版本，而不是表情符号的 discord 名称。

例如，不要使用“nut_and_bolt”，而应使用“”。 payload.emoji.name

顺便说一句，您可以使用

改进您的代码

role = guild.get_role(role_id=your_role_id)

而不是

role = nextcord.utils.get(guild.roles, id=your_role_id)

同样，您可以使用

member = guild.get_member(user_id=payload.user_id)

而不是

member = nextcord.utils.find(lambda m: m.id == payload.user_id, guild.members)

最后，

guild = self.bot.get_guild(id=payload.guild_id)

而不是

guild = nextcord.utils.find(lambda g: g.id == guild_id, self.bot.guilds)

与 nextcord 的反应作用

Reaction Role with nextcord

python

discord

nextcord

解决方案