Populate Query based on List of Ids

[Himanshu Singh]

Hey I am having an issue here @zigzago

I have two collections.

One is Post which looks like this

data class Post(
@BsonId
val postId: String = ObjectId().toString(),
val title: String,
val post: String,
val likes: List<String> = emptyList(),
val createdAt: String? = null,
val createdBy: String? = null,
val updatedAt: String? = null,
val shortUrl: String? = null,
val isDeleted: Boolean? = false,
val comments: List<String> = emptyList()
) 

and other is User which has userId and name.

My use case is in the post.likes which is a list of string of userIds. I want to do a call where I can populate the likes as literally user objects how we do in Mongoose. Lookup query is not working here.

Can you please help...Its a bit urgent

[zigzago]

Hello,

Sorry, I don't understand the case. Why not populate the likes collection with user ids in kotlin  before saving or updating the Post ?

Regards