how to add a dictionary to array in Mongodb

Question

I Use from Mongodb and have a collection like this:

{'name':'vahid','visited':[{id:1,'date':'1223123',noskhe:['a','d','h']]}

I want an update query to add {id:2,'date':'324324',noskhe:['d','n']} to visited array! How I can get this query?

Community · Accepted Answer · 2022-02-23 02:16:51Z

4

You need to use $push operator. It will append a new value to the array. Below is the example.

db.collection.update({"name":"vahid"},{$push:{ "visited": {id:2,'date':'324324',noskhe:['d','n']}}})

CommunityBot

11 silver badge

answered Apr 28, 2013 at 22:18

Aravind Yarram

80.5k49 gold badges239 silver badges335 bronze badges

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

2 Comments

Received pymongo.errors.OperationFailure: The field 'field_name' must be an array but is of type object in document

When I try using the push operator (albeit in PyMongo), I get {TypeError}unhashable type: 'dict'