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How to push json data into an arrya object in MONGO DB by java


How to push json data into an arrya object in MONGO DB by java

By : Allen Roberton
Date : December 01 2020, 05:00 PM
With these it helps Step 1. First get the position for element there which you want to insert
Step 2. You got the position
code :
List<BasicDBObject> andQuery2 = new ArrayList<BasicDBObject>();
                andQuery2.add(new BasicDBObject("id", id));
                andQuery2.add(new BasicDBObject("termsrelation.rel", relation));
                andQuery2.add(new BasicDBObject("termsrelation.terms.name", name));

                BasicDBObject searchObj2 = new BasicDBObject();
                searchObj2.put("$and", andQuery2);

                BasicDBObject basicDBObject = new BasicDBObject();
                basicDBObject.put("sourceType", type);
                basicDBObject.put("source", source);                


                BasicDBObject updateQuery = new BasicDBObject();
                updateQuery.append("$push", new BasicDBObject().append("termsrelation.$.terms."+position+".scopeNote", basicDBObject));


                coll.update(searchObj2, updateQuery).getError();


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Is it possible to populate additional fields with a json object for Mongo java?

Is it possible to populate additional fields with a json object for Mongo java?


By : Geovanny Aucapiña
Date : March 29 2020, 07:55 AM
seems to work fine If "json-string-with-nested-arrays" is a JSON string then you can do something like this in mongo-java-driver.
code :
info.put("Albums", JSON.parse(json-string-with-nested-arrays));
Mongo find() query with embedded JSON object not returning data

Mongo find() query with embedded JSON object not returning data


By : Alexsandro Lima
Date : March 29 2020, 07:55 AM
should help you out I'm using Mongoose to query Mongo in Node.js, using this command: , Use dot notation:
code :
 var qw = {
    'permissions.ownerID': req.user._id
 };
Unable to push data into current object inside mongo database

Unable to push data into current object inside mongo database


By : brijeshprajapati
Date : March 29 2020, 07:55 AM
wish of those help $push is for pushing a single element to an array. Use $push together with $each to push multiple elements. Also, quotes around the object labels should not be neccessary:
code :
db.collection('users').update(
      { id:user.id },
      { $push: { labels: { $each: resp.labels } } }
)
Not Able To Deserialize the JSON response to Arrya Of Objects

Not Able To Deserialize the JSON response to Arrya Of Objects


By : ManJaval Technologie
Date : March 29 2020, 07:55 AM
hop of those help? I am working on a code which consume the json and convert it to Objects . For example say my json response is as below :- , You are attempting to deserialize into the wrong type:
code :
List<Car> jsonToCarList = objectMapper.readValue(carJson, new TypeReference<List<Car>>() {});
Car jsonToCar = objectMapper.readValue(carJson, Car.class);
Can't push/update data into existing mongo object

Can't push/update data into existing mongo object


By : Sumanth M Sathyanara
Date : March 29 2020, 07:55 AM
will be helpful for those in need I have a user object which consists of a couple of arrays inside it, which looks like this: , You can do something like this:
code :
User.update({_id: ObjectId("5b910b0acb5b7646e630cefe")}, {
    $push: {
        "education": {
            "summary": "some summary",
            "education": [{"name": "Institue", "from": "19/07/2018", "to": "30/07/2018"}],
            "professional": [{"name": "Company", "from": "19/07/2018", "to": "30/07/2018"}],
            "cardCount": 1, "cardCount2": 1
        }
    }
})
User.update({_id: ObjectId("5b910b0acb5b7646e630cefe")}, {
    $push: {
        "education": {
            $each: [{
                "summary": "some summary",
                "education": [{"name": "Institue", "from": "19/07/2018", "to": "30/07/2018"}],
                "professional": [{"name": "Company", "from": "19/07/2018", "to": "30/07/2018"}],
                "cardCount": 1, "cardCount2": 1
            }, {"a": 2}]
        }    
    }
})
User.update({_id: ObjectId("5b910b0acb5b7646e630cefe")}, {
        $push: {
            "education": {
                $each: [{
                    "summary": "some summary",
                    "education": [{"name": "Institue", "from": "19/07/2018", "to": "30/07/2018"}],
                    "professional": [{"name": "Company", "from": "19/07/2018", "to": "30/07/2018"}],
                    "cardCount": 1, "cardCount2": 1
                }, {"a": 2}]
            },
           "professionalexp" : {"a":2}
        }
    })
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