Multi guild prefix

events/message.js

 module.exports = {
 
-    message: (bot, settings, discord) => {
+    message: (bot, settings, discord, connection) => {
         bot.on('message', async message => {
             
+            let guildid = message.guild.id;
+            var sql = `SELECT prefix FROM guilds WHERE guildid='`+ guildid +`'`;
+            connection.query(sql, function (err, result) {
+            if (err) throw err;
+            let prefix = result[0].prefix;
             if (message.author.bot) return;
             if (message.channel.type === "dm") return;
-
-            let prefix = settings.prefix;
             let args = message.content.slice(prefix.length).trim().split(' ');
             let cmd = args.shift().toLowerCase();
             let command;
-            if (!message.content.startsWith(settings.prefix)) return;
+            if (!message.content.startsWith(prefix)) return;
             if (bot.commands.has(cmd)) {
                 command = bot.commands.get(cmd);
             } else if (bot.aliases.has(cmd)) {
                 command = bot.commands.get(bot.aliases.get(cmd));
             }
                 try {
-                    command.run(bot, message, args);
+                    command.run(bot, message, args, connection);
                 } catch (err) {
                     if (err) return undefined;
                 }
-            
+            });
         });
     }