Question

我想在“ {ready”命令中添加一些if语句，例如：“如果用户具有角色A，B，C中的任何一个”，则执行操作。否则，如果用户具有D，E，F角色中的任何一个，则执行其他操作。我认为，如果有人可以帮助我解决下面的堆栈跟踪错误，那么它很可能会解决代码下方的问题

import logging
import time
import discord
import asyncio
import time
from discord.ext import commands
from discord.ext.commands import MissingRequiredArgument

prefix = "!"
bot = commands.Bot(command_prefix=prefix, case_insensitive=True)

token = open("token.txt", "r").read()

class MemberRoles(commands.MemberConverter):
        async def convert(self, ctx, argument):
            member = await super().convert(ctx, argument)
            return [role.name for role in member.roles[1:]] # Remove everyone role!

@bot.command()
#i prefer not using @commands.has_any_role decorator because i want my 1 "ready" command to branch based on the role(s) the user has
#I am trying to make my bot command able to do multiple role checks
#I am trying to adapt this example "async def roles(ctx, *, member: MemberRoles):" from https://discordpy.readthedocs.io/en/rewrite/ext/commands/commands.html


async def ready(ctx, *, message: str, member: MemberRoles):
    '''
    !ready must include text after the command and can only be used if you are assigned ANY of these roles: Admin, Newbie
    '''

    if message is None:
        return
    else:
        try:
          #stuff
        except Exception as e:
            print(str(e))

#This part, about detecting which roles a member has does not work, see the question below the code for more information
    await ctx.send('I see the following roles: ' + ', '.join(member))


@bot.event
async def on_command_error(ctx, error):
    if isinstance(error, commands.MissingRequiredArgument):
        await ctx.channel.send("Cannot ready without a message.  Type !ready <your message> and try again.")
    else:
        raise error

bot.run(token)

我认为，如果有人可以帮助我解决此堆栈跟踪错误，那么我可以解决下面的“问题”。 堆栈跟踪错误在“ raise error”点出现。我看到的错误是“ discord.ext.commands.errors.CommandInvokeError：命令引发了异常：TypeError：ready（）缺少1个仅关键字必需的参数：'member'“

问题：假定“ MemberRoles”类是实现此目的的好方法，那么我如何在“ ready”命令中使用它来实现A，B，C和D，E ，F如果我需要其他分支？

感谢您的帮助！

Answer 1

在命令中只能有一个仅关键字参数，因为discord.py使用仅关键字参数to collect the end of a message。实际上，您只需要作者角色，因此根本不需要使用转换器：

@bot.command
async def ready(ctx, *, message: str):
    author_roles = ctx.author.roles
    ...

关于检查角色，您可以做类似

的操作

roles_one = {"A", "B", "B"}
roles_two = {"D", "E", "F"}
if any(role.name in roles_one for role in author_roles):
    ...
elif not any(role.name in roles_two for role in author_roles):
    ...

discord.py中的漫游器命令REWRITE，如何基于角色包含AND角色不包含条件分支？

1 个答案: