CODEWITHSUNDEEP
node.jsmongodbmongoose
user3703539
user3703539

Reputation: 437

Mongoose: versioning of the whole document after each update

I am trying to save every version of the whole document on every save to list all the versions on my frontend, what is the best solution to handle this ?

Upvotes: 0

Views: 1512

Answers (1)

Philipp M
Philipp M

Reputation: 522

You don't need to keep the same _id (ObjectId) you can just duplicate the content and connect the old version to the new version by id.

const Example = new Schema({
    // your stuff
    oldVersion: {
        mongoose.ObjectId,
        ref: 'Example'
    }
});

Then you could intercept the update command and create a new document with the old version and update the with the new version.

Example.pre(['updateOne', 'findOneAndUpdate'], async function(next) {
    let doc = await Example.findOne(this.getFilter(), {
        _id: 0
    });
    await Example.create(doc)
    next();
});

Checkout this part of the documentation https://mongoosejs.com/docs/api.html#schema_Schema-pre for the interceptor and this for the reference https://mongoosejs.com/docs/api.html#schematype_SchemaType-ref

Upvotes: 2

Related Questions