Question

我正在处理一个高级建议命令，这是我目前的代码：

if (command === 'accept') {
 try {
  const suggestionchan = bot.channels.cache.get('840493081659834403');
  const acceptreason = message.content.split(' ')[2];
  if(!acceptreason) return message.lineReply("Please provide the reason!")
  const messageid = message.content.split(' ')[1];
  console.log(messageid)
  if(!messageid) return message.lineReply("Please provide the message id of the suggestion!")
  const suggestionData = suggestionchan.messages.fetch(messageid)
  const suggestionembed = suggestionData.embeds[0];
  const acceptembed = new Discord.MessageEmbed()
  .setAuthor(suggestionembed.author.name, suggestionembed.author.iconURL)
  .setTitle("Suggestion!")
  .setDescription(suggestionembed.description)
  .setColor("GREEN")
  .addFields(
    { name: `Accepted by ${message.author.tag}`, value: `**Reason:**\n${acceptreason}`}
  )
  .setFooter("Bot made by Sɱαɾƚx Gαɱιɳɠ YT")
  suggestionembed.edit(acceptembed)
  message.delete();
  const user = bot.users.cache.find( (u) => u.tag === suggestionembed.author.name);
  user.send(acceptembed)
} catch (err) { console.log(err)
  message.lineReply("That message ID is not a valid ID!")}
}

我在 suggestionembed = suggestionData.embeds[0]; 部分出现错误

错误是TypeError: Cannot read property '0' of undefined at Client.<anonymous>

Answer 1

suggestionchan.messages.fetch 返回一个 promise，因此您需要先解决它。您可以使用 .then() 方法或 await 关键字（如下所示）。

检查获取的消息是否有任何嵌入也是一个好主意。

if (command === 'accept') {
  try {
    const suggestionChannel = bot.channels.cache.get('840493081659834403');
    const acceptReason = message.content.split(' ')[2];
    if (!acceptReason)
      return message.lineReply('Please provide the reason!');

    const messageId = message.content.split(' ')[1];
    if (!messageId)
      return message.lineReply('Please provide the message id of the suggestion!');

    const suggestionData = await suggestionChannel.messages.fetch(messageId);
    const suggestionEmbed = suggestionData.embeds[0];
    if (!suggestionEmbed)
      return message.lineReply(`The message with ID ${messageId} doesn't have any embeds!`);

    const acceptEmbed = new Discord.MessageEmbed()
      .setAuthor(suggestionEmbed.author.name, suggestionEmbed.author.iconURL)
      .setTitle('Suggestion!')
      .setDescription(suggestionEmbed.description)
      .setColor('GREEN')
      .addFields({
        name: `Accepted by ${message.author.tag}`,
        value: `**Reason:**\n${acceptReason}`,
      })
      .setFooter('Bot made by Sɱαɾƚx Gαɱιɳɠ YT');
    suggestionData.edit(acceptEmbed);
    message.delete();

    const user = bot.users.cache.find(
      (u) => u.tag === suggestionEmbed.author.name,
    );
    user.send(acceptEmbed);
  } catch (err) {
    console.log(err);
    message.lineReply('That message ID is not a valid ID!');
  }
}

如何使用消息 ID discord.js 获取消息嵌入

1 个答案: