CODEWITHSUNDEEP
mongodbmongoosemongodb-query
ginu
ginu

Reputation: 11

how to add fields in a single document in mongodb

I am new to MongoDB and I have the following documents:

{
    "_id":ObjectID("55b89409b7d7df8c3d201618"),  
    "name":"John" 
}, 
{ 
    "_id":ObjectID("55b14359b7d7df8c3d20161c"), 
    "name":"Bahubali",  
    "products":7,  
    "contact_no":8819936800 
}

I need to edit the document which has the name "John". I need to add more fields to this document. But, when I use update, it can update only the specific name field and when I use save, it replaces the existing document with new document.

Is there any other approach to add new fields to the above document without using save. Because whenever we use save, we will require to rewrite the whole document.

Upvotes: 0

Views: 4905

Answers (2)

Wasimkhana
Wasimkhana

Reputation: 21

Try this in your mongoShell.

db.yourCollection.updateMany({"name":"john"}, {$set:{"products":7, "contact_no":8819936800}})

Upvotes: 0

Man Programmer
Man Programmer

Reputation: 5356

You can use the $set operator for it:

Example:

db.products.update(
   { name: "John" },
   { $set:
      {
        quantity: 500,
        details: { model: "14Q3", make: "xyz" },
        tags: [ "coats", "outerwear", "clothing" ]
      }
   }
)

Upvotes: 3

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