How to remove field from mongo documents using mongoose

Question

I'm trying to remove the particular field from mongo document using mongoose.But it's not working.

Here my mongo document:

{
    "_id" : ObjectId("5da80eb605320f441c41e340"),
    "name" : "TEST1-_-m3mkf9",
    "users" : [ 
        {
            "formStatus" : "assigned",
            "form" : [ 
                {
                    "_id" : ObjectId("5da80eb505320f441c41e33d"),
                }
             ],
        }
    ]
}

Here my code:

await Promise.all(
  Form.update(
    { _id: "5d8da115e222df7ebc066175" },
    { $pull: { users: 1 } },
    { safe: true }
  )
)
  .then(async val => {})
  .catch(err => {
    console.log(err);
  });

I want to remove the users field from mongo document. How can i do it? Thanks in advance.

Here is [the same question](https://stackoverflow.com/questions/6851933/how-to-remove-a-field-completely-from-a-mongodb-document). Check answers — IceBro, Dec 04 '19 at 12:23

score 0 · Answer 1 · answered Dec 04 '19 at 14:42

0

The below should work.

await Form.findByIdAndUpdate('5d8da115e222df7ebc066175', {
    $unset: { users: '' }
  });

answered Dec 04 '19 at 14:42

Onome Mine Adamu

35
1
7

getting TypeError: # is not iterable – dhamo dharan Dec 05 '19 at 04:59
did you put inside a async function. also run the code inside a try catch block and remove all Promise.all, .then .catch. – Onome Mine Adamu Dec 05 '19 at 05:16
i need to do it inside async function. – dhamo dharan Dec 05 '19 at 08:58

How to remove field from mongo documents using mongoose

1 Answers1