$unset is empty. You must specify a field like so: {$unset: {: …}}

Question

mongodb version 3.0.1
mongoose version 4.0.3

I\'m trying to do this:

groupsModel.updateQ({_id:group._id},{
    $unset:{\"moderators\":\"\"},
             


        

Answer 1

I wasn't able to reproduce that error message, but as you've seen, Mongoose will only update fields defined in the schema. However, you can override that default behavior by including the strict: false option:

groupsModel.update(
    {_id: group._id},
    {$unset: {"moderators": ""}, $set:{"admins": newAdmins}},
    {strict: false}
)