Mongoose, Remove document from double nested array

Question

I know its duplicate question but I am really don't understand why its not working

I need to remove documents from nested array

( example remove item: requirement[0].update[2] )

Schema {
    name: String,
    requirement:[{
        version: Number,
        update:[{
            date: Date,
            number: Number,
            description: String
        }]
    }],
}

code

File.findOneAndUpdate(
    { name: req.params.name, }, 
    //, 'requirement._id': req.body.versionID

    { "$pull":  {'requirement.$.update._id': req.body.versionNumID} },  
    { safe: true, multi:true }, 
    function(err, obj) {}
);

reference

dadwic · Accepted Answer · 2019-05-03 08:21:39Z

2

You can try this:

File.findOneAndUpdate({name:req.params.name},
  {$push: {"requirements.0.update": {_id:req.body.versionNumID}}
});

answered May 3, 2019 at 8:21

dadwic

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3 Comments

ShibinRagh Over a year ago

not working "requirement."+req.body.versionIndex+".update" adding index

dadwic Over a year ago

@ShibinRagh Try this: {[‘requirements.${req.body.versionIndex}.update’]: {_id:req.body.versionNumID}}

ShibinRagh Over a year ago

is there any other solution instead of using index ? , Using "update" array _id ? @dadwic

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