How to pull array of documents from array of documents?

Question

I have a document like this

{
    users: [
        {
            name: 'John',
            id: 1
        },
        {
            name: 'Mark',
            id: 2
        },
        {
            name: 'Mike',
            id: 3
        },
        {
            name: 'Anna',
            id: 4
        }
    ]
}

and I want to remove users from the array with ids 2 and 4. To do that I execute the following code:

const documents = [
    {
        id: 2
    },
    {
        id: 4
    },
]
Model.updateOne({ document_id: 1 }, { $pull: { users: { $in: documents } } });

But it doesn't remove any user.

Could you say me what I'm doing wrong and how to achieve the needed result?

dnickless · Accepted Answer · 2018-10-09 19:29:15Z

2

This works if you can redefine the structure of your documents array:

const documents = [2, 4]
Model.updateOne({ document_id: 1 }, { $pull: { users: { id: { $in: documents } } } })

answered Oct 9, 2018 at 19:29

dnickless

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