Querying after populate in Mongoose

Question

I\'m pretty new to Mongoose and MongoDB in general so I\'m having a difficult time figuring out if something like this is possible:

Item = new Schema({
             


        

Answer 1

Update: Please take a look at the comments - this answer does not correctly match to the question, but maybe it answers other questions of users which came across (I think that because of the upvotes) so I will not delete this "answer":

First: I know this question is really outdated, but I searched for exactly this problem and this SO post was the Google entry #1. So I implemented the docs.filter version (accepted answer) but as I read in the mongoose v4.6.0 docs we can now simply use:

Item.find({}).populate({
    path: 'tags',
    match: { tagName: { $in: ['funny', 'politics'] }}
}).exec((err, items) => {
  console.log(items.tags) 
  // contains only tags where tagName is 'funny' or 'politics'
})

Hope this helps future search machine users.