mongoose doesn't allow me to use camelCase collection name

Question

Here is my code:

const mongoose = require("mongoose");

mongoose.connect("mongodb://localhost:27017/miniRDS", {
    useNewUrlParser: true,
    useCreateIndex: true,
    useUnifiedTopology: true
}, (err) => {
    if(!err){
        console.log("Connected")
    }else{
        console.log("Couldn't connect!");
    }
});

const tests = new mongoose.Schema({
    subject: {
        type: String,
        required: true,
        default: "ict"
    },
    date: {
        type: String,
        required: true,
        default: "01-01-2021"
    }
});

const testsModel = mongoose.model("classTests", tests);
const s = new testsModel({
    subject: "english",
    date: "12-01-2021"
});

s.save();

I am using mongoose version 5.11.11. And I am facing difficulty when I try to create a collection with camelCase name using mongoose model.

In the above codes, It should create a collection name "classTests", instead it creates "classtests". how can I achieve "classTests"? Thanks

just add collection name in schema second parameter, i have already added in your another [question](https://stackoverflow.com/a/65672645/8987128) — turivishal, Jan 12 '21 at 12:03

score 5 · Accepted Answer · edited Dec 09 '21 at 11:21

5

you can use it as:

module.exports = mongoose.model("user_notification_preference", NotificationPreference, "userNotificationPreferences");

three parameters:(the name you want to use as camel, schema, the actual name)

edited Dec 09 '21 at 11:21

Suraj Rao

29,388
11
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answered Dec 09 '21 at 11:20

Prasanjeet Das

66
1
3

score 2 · Answer 2 · edited May 02 '23 at 01:35

Solution :

To Resolve this, We can use a Plural name in the `collection` field

const mongoose = require('mongoose');
const AssessmentAttemptSchema = new mongoose.Schema({
    userId: {
        type: mongoose.Types.ObjectId,
        required: true,
    },
    verificationToken: {
        type: String,
        required: true,
        unique: true,
    },
}, {
    timestamps: true,
    collection: 'assessmentAttempts',
});

module.exports = mongoose.model('AssessmentAttempt', AssessmentAttemptSchema);

So for this case, we are using assessmentAttempts to save the collection name as CamelCase.

End Result: Mongo DB : Sample Collection

MongoDB Collection Name Restrictions Docs : Reference Link

Mohammad Yaser Ahmadi · Answer 3 · 2021-01-12T11:55:53.047

1

Mongoose automatically looks for the plural, lowercased version of your model name, please check this documentation, so you can't create a collection with camelCase in mongoose

edited Jan 12 '21 at 11:55

answered Jan 12 '21 at 11:50

Mohammad Yaser Ahmadi

4,664
3
17
39

mongoose doesn't allow me to use camelCase collection name

3 Answers3

Solution :

To Resolve this, We can use a Plural name in the collection field

To Resolve this, We can use a Plural name in the `collection` field