Discord机器人模态框提交后编辑用户角色及昵称报错求助

我尝试了多种方法解决该问题，但均未奏效。（抱歉我的英语不好，我是法国人，已经尽力了^^）

完整代码 #

#captchamodal
class Captcha(discord.ui.Modal, title="Formulaire de Verification"):
    captresult = discord.ui.TextInput(label="code du Captcha", placeholder=f"code = {captrand}", max_length=6, min_length=6)
    

    async def on_submit(self, interaction: discord.Interaction):
        if captrand == self.captresult:
            await interaction.response.send_message(f"le Captcha a bien été validé {interaction.user.display_name} !", ephemeral=True)
            role = discord.utils.get(interaction.guild.role, id=1115589231474122783) #the errors come from this line, and the 2 following
            await interaction.user.edit(nick=f"🥖{interaction.user.display_name}")
            await interaction.user.add_roles(role)

class CaptchaButton(discord.ui.View):
    def __init__(self):
        super().__init__()
        
    @discord.ui.button(label="Captcha", style=discord.ButtonStyle.blurple, emoji="<Roger:1117098522936881162>")
    async def on_click(self, interaction: discord.Interaction, button: discord.ui.Button):
        await interaction.response.send_modal(Captcha())

@tree.command(name = "captcha", description = "[MODERATION] génère un captcha.", guild=discord.Object(id=guild_id))
async def CaptchaEmbed(interaction: discord.Interaction):
    emb=discord.Embed(title="Code à usage unique", description=f"{interaction.user.display_name}, intéragis avec le bouton ci-dessous pour remplir le captcha avec un code :\r\n", color = discord_blue, timestamp=datetime.datetime.now())
    emb.set_author(name="BreadBot", url="https://discordapp.com/users/793183664858071040", icon_url="https://cdn.discordapp.com/avatars/1102573935658283038/f769161ee8e6a63563b1166ab7c016b5.webp?size=128")
    emb.set_thumbnail(url=f"{interaction.user.avatar}") # type: ignore
    emb.set_footer(text=f"{interaction.guild.name}", icon_url=interaction.guild.icon) # type: ignore 
    await interaction.response.send_message(embed=emb, view=CaptchaButton(), ephemeral=True)

遇到的错误 #

Cannot access member "role" for type "Guild"
Member "role" is unknown
"role" is not a known member of "None"

Cannot access member "edit" for type "User"
Member "edit" is unknown

Cannot access member "add_roles" for type "User"
Member "add_roles" is unknown

我尝试将代码中的user替换为member，但完全没有效果。

错误原因与修正方案 #

1. Guild角色获取错误 #

• interaction.guild.role 不存在，正确属性是复数形式的roles，表示服务器的角色列表。
• 需先判断interaction.guild是否不为None（避免DM场景报错），再获取角色。

2. User对象无服务器操作权限 #

• interaction.user是全局User对象，没有edit（修改昵称）和add_roles（添加角色）方法，这些操作需要使用服务器内的Member对象即interaction.member。
• 同样要判断interaction.member是否存在，确保操作有效。

修正后的完整代码 #

#captchamodal
class Captcha(discord.ui.Modal, title="Formulaire de Verification"):
    captresult = discord.ui.TextInput(label="code du Captcha", placeholder=f"code = {captrand}", max_length=6, min_length=6)
    

    async def on_submit(self, interaction: discord.Interaction):
        # 先验证验证码是否正确（需取TextInput的value属性）
        if captrand == self.captresult.value:
            await interaction.response.send_message(f"le Captcha a bien été validé {interaction.user.display_name} !", ephemeral=True)
            
            # 检查是否在服务器内
            if not interaction.guild or not interaction.member:
                await interaction.followup.send("无法在当前环境执行此操作！", ephemeral=True)
                return
                
            # 获取目标角色（使用roles复数）
            role = discord.utils.get(interaction.guild.roles, id=1115589231474122783)
            if not role:
                await interaction.followup.send("目标角色不存在！", ephemeral=True)
                return
                
            # 使用member对象执行服务器内操作
            await interaction.member.edit(nick=f"🥖{interaction.member.display_name}")
            await interaction.member.add_roles(role)
        else:
            await interaction.response.send_message("验证码错误！", ephemeral=True)

class CaptchaButton(discord.ui.View):
    def __init__(self):
        super().__init__()
        
    @discord.ui.button(label="Captcha", style=discord.ButtonStyle.blurple, emoji="<Roger:1117098522936881162>")
    async def on_click(self, interaction: discord.Interaction, button: discord.ui.Button):
        await interaction.response.send_modal(Captcha())

@tree.command(name = "captcha", description = "[MODERATION] génère un captcha.", guild=discord.Object(id=guild_id))
async def CaptchaEmbed(interaction: discord.Interaction):
    emb=discord.Embed(title="Code à usage unique", description=f"{interaction.user.display_name}, intéragis avec le bouton ci-dessous pour remplir le captcha avec un code :\r\n", color = discord_blue, timestamp=datetime.datetime.now())
    emb.set_author(name="BreadBot", url="https://discordapp.com/users/793183664858071040", icon_url="https://cdn.discordapp.com/avatars/1102573935658283038/f769161ee8e6a63563b1166ab7c016b5.webp?size=128")
    emb.set_thumbnail(url=f"{interaction.user.avatar}") # type: ignore
    emb.set_footer(text=f"{interaction.guild.name}", icon_url=interaction.guild.icon) # type: ignore 
    await interaction.response.send_message(embed=emb, view=CaptchaButton(), ephemeral=True)

额外注意点 #

• 原代码中直接用captrand == self.captresult比较验证码是错误的，TextInput组件的值需要通过.value属性获取。
• 添加了角色不存在的判断，避免后续操作报错。

内容的提问来源于stack exchange，提问作者Wishrito