How to remove the nested array object value with its Object ID in Mongoose?

Question

i need to delete the url from the below mongodb database with the id which is in url object, then need the remaining data's as a result

My mongodb collection has the following :

    {
      "_id" : ObjectId("589b043abc2f5a467c13303b"),
      "user_id" : ObjectId("5874c174c813822341cb59a7"),
      "filename" : [
       {
         "url" : "images/product_images/file-1486554170465.jpeg",
         "_id" : ObjectId("589b043abc2f5a467c13303c")
       },
       {
         "url" : "images/product_images/file-1486554306440.jpeg",
         "_id" : ObjectId("589b04c2bc2f5a467c13303f")
       }]
    }

Can anybody help me please , thanks in advance ..

You can use the select(['field1', 'field2']) from Mongoose. Or you can do some post-processing with _.pick() or _.omit() from the Lodash library. — zeronone
– zeronone, Commented Feb 10, 2017 at 5:59
What all information do you have to fetch the document? Do you have the _id of the document and also the _id of the filename you want to remove? — Jyotman Singh
– Jyotman Singh, Commented Feb 10, 2017 at 6:34
i have userid,id of url and whole collection id , i need to remove the url . — Elamparithi.P
– Elamparithi.P, Commented Feb 10, 2017 at 6:48

Jyotman Singh · Accepted Answer · 2017-02-10 07:02:48Z

1

In mongoose you can do this -

CollectionInstance.findByIdAndUpdate(documentId, {
    $pull: {
        filename: {_id: urlId}
    }
}, {new: true});

By documentId I mean 589b043abc2f5a467c13303b and by urlId I mean 589b043abc2f5a467c13303c in your above example code.

What we are doing here finding is the particular document in the collection through its _id and then pulling the particular document from the filename array through its _id.

The {new: true} option tells Mongo to return the updated document. By default this value is false and Mongo returns the document state before update.

answered Feb 10, 2017 at 7:02

Jyotman Singh

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3 Comments

Elamparithi.P Over a year ago

'new_add_schema.findByIdAndUpdate("589d64e9e4aee71251c56941", { $pull: { filename: { "_id": "589d6630866a0c1429f7e96a" } } }, { new: true }, function(req,vft) { console.log(vft) });'

Elamparithi.P Over a year ago

I try the above , but its not delete the object(url and id)

Elamparithi.P Over a year ago

woooow , its working fine now , after 3 days i get this result . thanks !! thanks a lot Jyotman Singh

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