Mongoose, find item in a documents array

Question

Mongoose, find item in a documents array

So I have queried a specific document by id from mongoose. That document has an array of items. This list will always be very small (less than 10 items). I was wondering if there was a way to get a specific item from the array.

Example doc:
{
   _id: 1,
   name: 'some name,
   items: [{
      id: 23,
      name: 'item name 23'
   },{
      id: 24,
      name: 'item name 24'
   }]
}

From the mongoose docs I can get the items array:

doc.get('items')

From there I can iterate over the array and find what I want, which is no big deal. Just don't want to reinvent the wheel if this is provided in the framework.

node.js
mongoose

Answer 1

I think it will work.

Document.findById({docId, 'items.id': 'yourId'}, {'items.$': 1}, function(err, item){

}

Answer 2

There is an id method for doing exactly that.

doc.items.id(23)

http://mongoosejs.com/docs/subdocs.html

The solutions using find or findOne will work but involve more code and are more difficult to understand.