Update commands/leave-message.js

commands/leave-message.js

-const Discord = require('discord.js');
-const db = require('quick.db');
-
-exports.run = async (client, message, args) => {
+exports.run = async (client, message, args, connection) => {
 if(!message.member.hasPermission("ADMINISTRATOR")) return message.channel.send('You need administrator permission to run this command');
 const a = args[0]
 if(!a) return message.channel.send('You need to say a message for new members or say `default`')
+const b = await new Promise((resolve, reject) => {
+  connection.query(`SELECT msg FROM memberremovemsg WHERE guildid ='${message.guild.id}'`, function (err, result) {
+    if (err)
+        reject(err);
+    resolve(result);
+});
+});
 if(a == "default") {
-db.delete(`memberremovemsg_${message.guild.id}`)
+  if (b.length < 1){
+    message.channel.send('Setted to default.')
+  }
+  else {
+    connection.query(`DELETE FROM memberremovemsg WHERE guildid ='${message.guild.id}'`, function (err, result) {
+      if (err) throw err;
+    });
+    message.channel.send('Setted to default.')
+  };
 message.channel.send('Setted to default')
 } else {
 let msg = args.join(' ')
 if(!msg) return message.channel.send('You need to specify a message \n{mention} mention\'s user {username} show\'s username')
-db.set(`memberremovemsg_${message.guild.id}`, msg)
-const embed2 = new Discord.MessageEmbed()
-.setColor('RANDOM')
-.setDescription(`Leave message is setted to ${msg}`)
-message.channel.send(embed2)
-}
-}
+if (b.length < 1) {
+  connection.query(`INSERT INTO memberremovemsg (guildid, msg) VALUES (${message.guild.id}, '${msg}')`, function (err, result) {
+    if (err) throw err;
+  });
+  message.channel.send('Setted leave message.')
+} else {
+  connection.query(`UPDATE memberremovemsg SET msg ='${msg}' WHERE guildid ='${message.guild.id}'`, function (err, result) {
+    if (err) throw err;
+  });
+  message.channel.send('Setted new leave message.')
+};
+}};
   module.exports.help = {
     name: 'goodbye-message',
     aliases: ['goodbyemessage','leave-message','leavemessage']