Question 115347 in Mongodb Question posted in
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Mongodb – MongooseError: Model.findOne() no longer accepts a callback at Function

I’ve encountered a problem while setting up mongoose.

Here is my code:

const { SlashCommandBuilder } = require('@discordjs/builders');
const testSchema = require(`../../Schemas.js/test`);

module.exports = {
    data: new SlashCommandBuilder()
    .setName('dbtest')
    .setDescription('db test'),
    async execute(interaction) {

        testSchema.findOne({ GuildID: interaction.guild.id, UserID: interaction.user.id}, async(err, data) => {
            if (err) throw err;

            if (!data) {
                testSchema.create({
                    GuildID: interaction.guild.id,
                    UserID: interaction.user.id
                })
            }

            if (data) {
                console.log(data)
            }
        })
    }
}

My error:

/Users/akimfly/akim-slash-bot/node_modules/mongoose/lib/model.js:2131
    throw new MongooseError('Model.findOne() no longer accepts a callback');
          ^

MongooseError: Model.findOne() no longer accepts a callback
    at Function.findOne (/Users/akimfly/akim-slash-bot/node_modules/mongoose/lib/model.js:2131:11)
    at Object.execute (/Users/akimfly/akim-slash-bot/src/commands/Community/databasetest.js:10:20)
    at Object.execute (/Users/akimfly/akim-slash-bot/src/events/interactionCreate.js:12:21)
    at Client.<anonymous> (/Users/akimfly/akim-slash-bot/src/functions/handleEvents.js:8:58)
    at Client.emit (node:events:513:28)
    at InteractionCreateAction.handle (/Users/akimfly/akim-slash-bot/node_modules/discord.js/src/client/actions/InteractionCreate.js:97:12)
    at module.exports [as INTERACTION_CREATE] (/Users/akimfly/akim-slash-bot/node_modules/discord.js/src/client/websocket/handlers/INTERACTION_CREATE.js:4:36)
    at WebSocketManager.handlePacket (/Users/akimfly/akim-slash-bot/node_modules/discord.js/src/client/websocket/WebSocketManager.js:352:31)
    at WebSocketShard.onPacket (/Users/akimfly/akim-slash-bot/node_modules/discord.js/src/client/websocket/WebSocketShard.js:489:22)
    at WebSocketShard.onMessage (/Users/akimfly/akim-slash-bot/node_modules/discord.js/src/client/websocket/WebSocketShard.js:328:10)
Tags:

3

Answers


  1. 0

    Mongoose dropped support for callbacks from its node.js driver as of version 5.0. You can use async/await instead:

    module.exports = {
  data: new SlashCommandBuilder().setName('dbtest').setDescription('db test'),
  async execute(interaction) {
    try {
      const data = await testSchema.findOne({
        GuildID: interaction.guild.id,
        UserID: interaction.user.id,
      });

      if (!data) {
        testSchema.create({
          GuildID: interaction.guild.id,
          UserID: interaction.user.id,
        });
      }

      if (data) {
        console.log(data);
      }
    } catch (error) {
      console.log(error);
    }
  },
};
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  2. 0

    MongooseError: Model.find() no longer accepts a callback

    *you can use async/await or promises(then)

    Model.find().then((data) => {
 console.log(data);
....
})
    Login or Signup to reply.
  3. 0

    Along with the above mentioned findOne() these are all the other functions Mongoose docs that generate the same error since the usage of callback functions has been deprecated in Mongoose version 7.x. Hence you can use async/await or promises.
    For more go through this thread Mongoose Discussion forum

    Ex:1

    Collection.find().then(function(documents){
   console.log(documents);
})

    Ex:2

     Collection.insertMany([doc1,doc2]).then(function () {
     console.log("Successfully inserted Multiple docs into collection);
   }).catch(function (err) {
     console.log(err);
   });
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