How to push array of objects on update mongoose

Question

I tried something like this:

query:

query = {
      pictures: {$pushAll: files}
}

files array look like this:

[{ fieldname: 'productPhotos',
        originalname: 'images.jpg',
        encoding: '7bit',
        mimetype: 'image/jpeg',
        filename: '422e64cfb147eff02fee5166d63939b10564d4ad-images.jpg',
        }]

Update mongoose model:

 Product.update({ _id: product.productId}, query,...

Model look like this for pictures:

pictures: [{
        filename: {
            type: String,
            required: false
        }
    }],

Problem is array in database not update... Any solution?

Neil Lunn · Accepted Answer · 2017-05-25 13:14:17Z

4

Wrong way around, and you should use $push and $each. i.e

Product.update(
 { "_id": product.productId }, 
 { "$push": { "pictures": { "$each": files } } },
 function(err,callback) {

 }
)

So the update operator ( i.e $push ) is at the root of the update statement followed by the field(s) to apply to.$each is a modifier to accept a "list" if content to add as opposed to "singular"

answered May 25, 2017 at 13:14

Neil Lunn

151k36 gold badges356 silver badges327 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Vladimir Over a year ago

Thanks, how can I pull single element? Tried like this {$pull: { pictures: { filename: 'product.png' } } } but not working...

Neil Lunn Over a year ago

@Vladimir That's a different question. If you have to, then Ask a New Question. It's clearer that way and how this site works. A clear separation of questions.

Collectives™ on Stack Overflow

How to push array of objects on update mongoose

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related