子命令的问题：ctx.invoked_subcommands 总是 None

Question

编辑：已找到解决方案

Try changing the names of the subcommands to _enabled and _disabled and pass name="enabled" name="disabled" to the command decorators. This is a guess, but sometimes names that the Bot uses internally don't work properly when used as command names. - Patrick Haugh

我试图清理一些代码并试图将子命令实现到一个模块中，但我遇到了一个我似乎无法解决的问题。首先，这是代码：

@commands.group()
@commands.has_permissions(administrator=True)
async def autorole(self, ctx):
    exists = dbinteraction.dbexec("SELECT role from autorole WHERE server_id = {}".format(ctx.guild.id))
    if ctx.invoked_subcommand is None:
        em = None
        if (exists == None):
            em = discord.Embed(title="Autorole is disabled for this guild.", color=discord.Color(0xff0000))
        else:
            em = discord.Embed(title="Autorole is enabled for this guild.", color = discord.Color(0x32ff00))
            rol = discord.utils.get(ctx.guild.roles, id=exists)
            em.add_field(name="Current role:", value=rol.mention)
        await ctx.send(embed=em)

@autorole.command()
@commands.has_permissions(administrator=True)
async def enabled(self, ctx, role: discord.Role=None):
    """Defines a role that will be applied to all new members, format: autorole (enabled/disabled) [role]"""
    exists = dbinteraction.dbexec("SELECT role from autorole WHERE server_id = {}".format(ctx.guild.id))
    print('status, role : {} {}'.format("enabled", role.id))
    try:
        if role==None:
            await ctx.send("No role provided")
        else:
            if (exists!=None):
                dbinteraction.dbexec("UPDATE autorole SET role = {}".format(role.id))
            else:
                dbinteraction.dbexec("INSERT INTO autorole VALUES({},{})".format(ctx.guild.id, role.id))
                em = discord.Embed(title="", color= discord.Color(0x32ff00))
                em.add_field(name="Autorole enabled", value="Current role: {}".format(role.mention))
                await ctx.send(embed=em)

    except (Exception) as e:
        print(e)

@autorole.command()
@commands.has_permissions(administrator=True)
async def disabled(self, ctx, role: discord.Role=None):
    exists = dbinteraction.dbexec("SELECT role from autorole WHERE server_id = {}".format(ctx.guild.id))
    print('disab')
    if(exists!=None):
        dbinteraction.dbexec("DELETE FROM autorole WHERE server_id = {}".format(ctx.server.id))
        await ctx.send("Autorole disabled")

无论我尝试什么，下面的代码总是执行默认命令（if ctx.invoked_subcommand is None: 之后的那个），我正在使用重写

Answer 1

您可能对 invoke_without_command 感兴趣。这是一个你传递给你的组的参数，它告诉它如果没有子命令只运行回调。所以你的小组是

@commands.group(invoke_without_command=True)
@commands.has_permissions(administrator=True)
async def autorole(self, ctx):
    exists = dbinteraction.dbexec("SELECT role from autorole WHERE server_id = {}".format(ctx.guild.id))
    if (exists == None):
        em = discord.Embed(title="Autorole is disabled for this guild.", color=discord.Color(0xff0000))
    else:
        em = discord.Embed(title="Autorole is enabled for this guild.", color = discord.Color(0x32ff00))
        rol = discord.utils.get(ctx.guild.roles, id=exists)
        em.add_field(name="Current role:", value=rol.mention)
    await ctx.send(embed=em)

编辑：

来自我下面的评论：

Try changing the names of the subcommands to _enabled and _disabled and pass name="enabled" and name="disabled" to the command decorators. This is a guess, but sometimes names that the Bot class uses internally don't work properly when used as command names.

子命令的问题：ctx.invoked_subcommands 总是 None

Issue with subcommands: ctx.invoked_subcommands is always None

python

python-3.5

discord

discord.py

discord.py-rewrite