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javascript - 当某人有太多角色无法嵌入嵌入时，如何发送“无法显示的角色太多”消息？

问题描述

这是我的whois命令：

const Discord = require("discord.js")
const moment = require('moment');

const status = {
online: "Online",
idle: "Idle",
dnd: "Do Not Disturb",
offline: "Offline/Invisible"
};

module.exports = {
config: {
    name: "whois",
    description: "userinfo",
    usage: "m/whois <mention a member/member id>",
    aliases: ['ui', 'ifno']
},
run: async (bot, message, args) => {
    var permissions = [];
    var acknowledgements = 'None';
    let whoisPermErr = new Discord.MessageEmbed()
    .setTitle("**User Permission Error!**")
    .setDescription("**Sorry, you don't have permissions to use this! ❌**")


    const member = message.mentions.members.first() || message.guild.members.cache.get(args[0]) || message.member;
    

    if(member.hasPermission("KICK_MEMBERS")){
        permissions.push("Kick Members");
    }
    
    if(member.hasPermission("BAN_MEMBERS")){
        permissions.push("Ban Members");
    }
    
    if(member.hasPermission("ADMINISTRATOR")){
        permissions.push("Administrator");
    }

    if(member.hasPermission("MANAGE_MESSAGES")){
        permissions.push("Manage Messages");
    }
    
    if(member.hasPermission("MANAGE_CHANNELS")){
        permissions.push("Manage Channels");
    }
    
    if(member.hasPermission("MENTION_EVERYONE")){
        permissions.push("Mention Everyone");
    }

    if(member.hasPermission("MANAGE_NICKNAMES")){
        permissions.push("Manage Nicknames");
    }

    if(member.hasPermission("MANAGE_ROLES")){
        permissions.push("Manage Roles");
    }

    if(member.hasPermission("MANAGE_WEBHOOKS")){
        permissions.push("Manage Webhooks");
    }

    if(member.hasPermission("MANAGE_EMOJIS")){
        permissions.push("Manage Emojis");
    }
    if(permissions.length == 0){
        permissions.push("No Key Permissions Found");
    }
    if(member.user.id == message.guild.ownerID){
        acknowledgements = 'Server Owner';
    }
    const embed = new Discord.MessageEmbed()
        .setDescription(`<@${member.user.id}>`)
        .setAuthor(`${member.user.tag}`, member.user.displayAvatarURL())
        .setColor('#2F3136')
        .setFooter(`ID: ${message.author.id}`)
        .setThumbnail(member.user.displayAvatarURL())
        .setTimestamp()
        .addField('Joined at: ',`${moment(member.joinedAt).format("dddd, MMMM Do YYYY, HH:mm:ss")}`)
        .addField('Created On', member.user.createdAt.toLocaleString())
        .addField(`Roles [${member.roles.cache.filter(r => r.id !== message.guild.id).map(roles => `\`${roles.name}\``).length}]`,`${member.roles.cache.filter(r => r.id !== message.guild.id).map(roles => `<@&${roles.id }>`).join(" **|** ") || "No Roles"}`)
        .addField("\nAcknowledgements: ", `${acknowledgements}`)
        .addField("\nPermissions: ", `${permissions.join(` | `)}`);
        
    message.channel.send({embed});

}
}

它确实有效，但是当提到的成员有太多角色时，它会出现错误，因为长度太长并且问题是它有太多角色。

如果提到的用户的角色太多，我该如何做到这一点，它会出现“角色太多”的消息？

我正在使用 Discord.js v12。

标签： javascriptdiscorddiscord.jsbots

解决方案

使用 try/catch 语句

//embed is instance of MessageEmbed with description as the member's roles
try {
await message.channel.send(embed)
} catch(err) {
embed.setDescription('Too many roles');
message.channel.send(embed)
}

或使用.catch

message.channel.send(embed).catch(() => {
embed.setDescription('Too many roles');     
message.channel.send(embed)
})

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