I'm developing an app with mongoose to access MongoDB.

And what I'm trying to achieve is to make a query and discar some documents by id.

User.find({})
    .where('price').lt(upperLimit)
    ....
    .exec(function(err, users) {
      //
    });

The point is I want to discard some users that I know before doing the query. Any ideas?. I don't want to post-process users collections and filter.

Thanks!

I'm developing an app with mongoose to access MongoDB.

And what I'm trying to achieve is to make a query and discar some documents by id.

User.find({})
    .where('price').lt(upperLimit)
    ....
    .exec(function(err, users) {
      //
    });

The point is I want to discard some users that I know before doing the query. Any ideas?. I don't want to post-process users collections and filter.

Thanks!

• javascript
• node.js
• mongodb
• mongoose

2 Answers 2

You can use the $nin operator to exclude an array of _id values:

User.find({})
  .where('price').lt(upperLimit)
  .nin('_id', idsToExclude)
  ....
  .exec(function(err, users) {
    //
  });

You could use the $ne operator:

User.find({"_id":{"$ne":<IdToExclude>}}). …