Add paginate on subdocuments list

[lau1944]

I want to add pagination features to sub-docs list

for instance

We have a user model which contains followers

const userModel = new Schema({
  id: { type: String },
  followers: [{ type: ObjectId, ref: 'user'  }]
});

Now, when we need to fetch the followers of a user

user.findOneById(id).populate('followers');

But here I want to paginate the followers list, but I cannot use the api from this library to achieve this.
Instead I need to

user.findOneById(id).populate({ path: 'followers', limit: xx, skip: (page - 1) * limit, ...  );

That adds some extra code...

Is there any way to do that in this library ?
If not, I am here to submit a feature request. If you need any help, I am eager to contribute.

[aravindnc]

@lau1944 You can try this.
https://www.npmjs.com/package/mongoose-aggregate-paginate-v2

[lau1944]

@lau1944 You can try this.

https://www.npmjs.com/package/mongoose-aggregate-paginate-v2

I took a look but I don't think aggregation can be used in my use case.

Maybe we can add a way to paginate sub-docs ?

[aravindnc]

@lau1944 Yes its good to add as an option. You are welcome to contribute if you are willing.

[lau1944]

How about I add a second method, let say paginateSubDocs, if user want to paginate only sub-documents, they can add this function to their schema. And this function only support findOne query.

[aravindnc]

@lau1944 Excellent. Let's start with this.

[lau1944]

Thanks! I am working on it, will pr in a few days ><

[lau1944]

@aravindnc would you like to take a look #175