Javascript foreach中的Discord.JS addField不工作

由于某种原因，addField不起作用。没有错误，只是没有出现

查询和foreach都很好，可以正常工作。我在命令中使用了完全相同的设置。它只是不适用于嵌入式系统

const con = mysql.createConnection({
host: "localhost",
user: "root",
password: "",
database: "testbot"
});
con.connect(err => {
if(err) throw err;
console.log("Connected to database!");
});


function statusUpdate() {

var update = bot.channels.get('5777623821454355545');
const statusEmbed = new Discord.RichEmbed();
statusEmbed.setTitle("**Current Statuss:**");
con.query("SELECT * FROM games", function(err, result, fields) {
   if(err) throw err;
    Object.keys(result).forEach(function(key) {
        var row = result[key];
        statusEmbed.addField('**' + row.name + '**' + ' - ' + '(' + row.description + ')' + ' - ' + '**' + row.status + '**');
    });
});
update.send(statusEmbed);
}

bot.on('ready', () => {
console.log('This bot is online!');
statusUpdate();
});

---

您必须在查询回调中更新

statusEmbed

，因为如果不这样做，您将在尚未执行

addField

时更新它

回调意味着查询是异步的

---

基于回调的解决方案

function statusUpdate(callback) {
  const update = bot.channels.get('577762382164525066');

  const statusEmbed = new Discord.RichEmbed();

  statusEmbed.setTitle('**Current Statuss:**');

  con.query('SELECT * FROM games', function(err, result, fields) {
    if (err) {
      callback(err);

      return;
    }

    Object.keys(result).forEach((key) => {
      const row = result[key];

      statusEmbed.addField(`**${row.name}** - (${row.description}) - **${row.status}**`);
    });

    update.send(statusEmbed);

    callback(false);
  });
}

function statusUpdate() {
  const update = bot.channels.get('577762382164525066');

  const statusEmbed = new Discord.RichEmbed();

  statusEmbed.setTitle('**Current Statuss:**');

  con.query('SELECT * FROM games', function(err, result, fields) {
    if (err) {
      throw err;
    }

    Object.keys(result).forEach((key) => {
      const row = result[key];

      statusEmbed.addField(`**${row.name}** - (${row.description}) - **${row.status}**`);
    });

    update.send(statusEmbed);
  });
}

---

备选方案

function statusUpdate(callback) {
  const update = bot.channels.get('577762382164525066');

  const statusEmbed = new Discord.RichEmbed();

  statusEmbed.setTitle('**Current Statuss:**');

  con.query('SELECT * FROM games', function(err, result, fields) {
    if (err) {
      callback(err);

      return;
    }

    Object.keys(result).forEach((key) => {
      const row = result[key];

      statusEmbed.addField(`**${row.name}** - (${row.description}) - **${row.status}**`);
    });

    update.send(statusEmbed);

    callback(false);
  });
}

function statusUpdate() {
  const update = bot.channels.get('577762382164525066');

  const statusEmbed = new Discord.RichEmbed();

  statusEmbed.setTitle('**Current Statuss:**');

  con.query('SELECT * FROM games', function(err, result, fields) {
    if (err) {
      throw err;
    }

    Object.keys(result).forEach((key) => {
      const row = result[key];

      statusEmbed.addField(`**${row.name}** - (${row.description}) - **${row.status}**`);
    });

    update.send(statusEmbed);
  });
}

---

我更新了我的问题。你的答案只是给了我一个回调不是函数的错误。我在问题的底部添加了bot.on（'ready'），我忘了向你展示。bot.onReady与这件事无关。在我的解决方案中，您必须将回调传递到

statusUpdate

，我将添加一个没有HMM的示例，好吗。我添加了你的答案，我刚刚得到的错误回调不是functionEDIT***Nvm，第一个答案现在工作了。很抱歉，谢谢你的帮助。