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python - 当该频道的成员为 0 时，创建私人语音频道并删除该频道

问题描述

我写了一个代码，如果你去某个语音通道会创建一个新的私人语音通道，问题是语音通道中没有人之后，它应该被删除，我为此写了一个代码，但是它确实不行。

这是代码本身：

@commands.Cog.listener()
async def on_voice_state_update(self, member, before, after):   
    cursor.execute(f'SELECT start_voice_channel FROM public."myBD" WHERE guild_id = \'{member.guild.id}\';')
    v_c = cursor.fetchone()
    voice_channel = v_c[0]
    
    cursor.execute(f'SELECT categori FROM public."myBD" WHERE guild_id = \'{member.guild.id}\';')
    c_c = cursor.fetchone()
    channel_category = c_c[0]

    if voice_channel is not None and channel_category is not None:
        print(f'\n First before: {before}\n')
        print(f'\n First after: {after}\n')
        print(f'\n Second before: {before.channel.id}\n')
        print(f'\n Second after: {after.channel.id}\n')
        if after.channel.id == voice_channel:
            maincategori = get(member.guild.categories, id = channel_category)
            channel2 = await member.guild.create_voice_channel(name = f'Privat({member.display_name})', category = maincategori)
            await channel2.set_permissions(member, connect = True, mute_members = True, move_members = True, manage_channels = True)
            await member.move_to(channel2)
            def check(self, x):
                return len(channel2.members) == 0
            await self.bot.wait_for('voice_channel_update', check = check)
            await channel2.delete()
    else: 
        pass

在我离开频道后，它给出了一个错误：

如果 after.channel.id == voice_channel:

AttributeError：“NoneType”对象没有属性“id”

刚刚做了一个检查，这是我得到的：

当我进入频道时：

First before: <VoiceState self_mute=False self_deaf=False self_stream=False channel=None>
Second after: <VoiceState self_mute=False self_deaf=False self_stream=False channel=<VoiceChannel id=751363819837718599 name='Voice Channel 1' position=0 bitrate=64000 user_limit=0 category_id=754670529268678669>>
Ignoring exception in on_voice_state_update
Traceback (most recent call last):
File "/app/.heroku/python/lib/python3.9/site-packages/discord/client.py", line 312, in _run_event
await coro(*args, **kwargs)
File "/app/cogs/commands/moderation/command/private_channel.py", line 43, in on_voice_state_update
print(f'\n Second before: {before.channel.id}\n')
AttributeError: 'NoneType' object has no attribute 'id'

出来的时候：

First before: <VoiceState self_mute=False self_deaf=False self_stream=False channel=<VoiceChannel id=751363819837718599 name='Voice Channel 1' position=0 bitrate=64000 user_limit=0 category_id=754670529268678669>>
First after: <VoiceState self_mute=False self_deaf=False self_stream=False channel=None>
Second before: 751363819837718599
Ignoring exception in on_voice_state_update
Traceback (most recent call last):
File "/app/.heroku/python/lib/python3.9/site-packages/discord/client.py", line 312, in _run_event
await coro(*args, **kwargs)
File "/app/cogs/commands/moderation/command/private_channel.py", line 44, in on_voice_state_update
print(f'\n Second after: {after.channel.id}\n')
AttributeError: 'NoneType' object has no attribute 'id'

如何解决这个问题？

标签： pythondiscordbotsdiscord.pydiscord.py-rewrite

解决方案

删除频道时，您必须使用before.channel而不是after.channel使用它，因为after.channel它会给您 NoneType 错误，就好像您删除一个频道后不能有后续一样。

channel = discord.utils.get(guild.voice_channels, name=str(before.channel))
if channel is None:
    return
else:
    if len(channel.members) == 0:
        await channel.delete(reason=None)

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