Mongoose - Query nested objects

Question

Let consider this collection of posts. Each post has an array of comments and each comments has an array on string, with the key 'likes', which indicates the users who like the comment.

{
_id: 000
created_at:
user_id:
comments: [{
       _id: 111
       created_at:
       likes: [user_id1 , user_id2 , user_id3]
       },
       {
       _id: 222
       created_at:
       likes: [user_id1]
       },]
}

How can I check, with mongoose, if a user has liked a comment with a given id?

gustavohenke · Accepted Answer · 2013-06-07 10:58:25Z

3

I think that this query may be the thing you're looking for...

{
  comments: {
    $elemMatch: {
      _id: 111,
      likes: user_id1
    }
  }
}

Hope it helps you

answered Jun 7, 2013 at 10:58

gustavohenke

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