MongoDB “NumberLong/$numberLong” issue while converting back to Java Object

MongoDB “NumberLong/$numberLong” issue while converting back to Java Object

I am having a json which is somethink like {“Header” : {“name” : “TestData”, “contactNumber” : 8019071740}}
If i insert this to mongoDB it will be something like
{“_id” : ObjectId(“58b7e55097989619e4ddb0bb”),”Header” : {“name” : “TestData”,”contactNumber” : … Read the rest “MongoDB “NumberLong/$numberLong” issue while converting back to Java Object”

Why Mongoose sort is slower than native javascript sort?

Why Mongoose sort is slower than native javascript sort?

I’m using Node.js 6.10.0 and Mongoose 4.8.5. Actually I’m trying to find the nearest coordinates from a coordinate and with a certain datetime. I have billions data into my MongoDB. I want to apply a sort … Read the rest “Why Mongoose sort is slower than native javascript sort?”

Android Studio: connecting to MongoDB server with Mongo Java Driver

Android Studio: connecting to MongoDB server with Mongo Java Driver

There’s a lot of posts about this problem, but noone seems to work, so maby some things have changed.
I am trying to connect my android application to a MongoDB server located on mLab. I’m … Read the rest “Android Studio: connecting to MongoDB server with Mongo Java Driver”

update multiple documents with sub array elements in mongodb without $ operator

update multiple documents with sub array elements in mongodb without $ operator

I want to update the element of subarray with another element of same array index. Actually what mistake what I have done is typo mistake in column name (reviews, review) so want to … Read the rest “update multiple documents with sub array elements in mongodb without $ operator”

Does index help in Mongo bitwise query

Does index help in Mongo bitwise query

I learnt that bitwise query was introduced to MongoDB since 3.2.
ref: https://docs.mongodb.com/manual/reference/operator/query/bitsAllSet/#op._S_bitsAllSet
Will these queries be speed up by indexes on numeric fields? If so, how does it work?

Solutions/Answers:

Solution 1:

mongodb does not support index

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How to get the value for a nested item inside a collection?

How to get the value for a nested item inside a collection?

Suppose I have this document:
{
“_id” : ObjectId(“4e2f2af16f1e7e4c2000000a”),
“location” : {
“geometry” : [
[ 123, 23.45321 ],
[ 124.55632, 43.256 ]
]
},
“advertisers” : {
“created_at” : ISODate(“2011-07-26T21:02:19Z”),
“category” : … Read the rest “How to get the value for a nested item inside a collection?”

Mongoose select,populate and save behaving differently on Mac and Windows

Mongoose select,populate and save behaving differently on Mac and Windows

Here’s what i did
static populateReferralLinks(){
return Promise.coroutine(function*(){
let companies = yield Company.find({},’billing referral current_referral_program’)
.populate(‘billing.user’,’emails name’);

for(let i = 0 ; i < length ; i++){ companies[i].referral.is_created = true; companies[i].referral.referral_email = companies[i].billing.user.emails[0].email; companies[i] = yield companies[i].save(); } return companies; }).apply(this) .catch((err) => {
throw err;
});
}

I have a funciton in which i … Read the rest “Mongoose select,populate and save behaving differently on Mac and Windows”

Create a mongo connection and make it alive for execution of an Entire Test Suite in Ready!API

Create a mongo connection and make it alive for execution of an Entire Test Suite in Ready!API

If you want to make an gmongo connection alive for an entire test suite and then close it in a tear down operation after the entire test suite … Read the rest “Create a mongo connection and make it alive for execution of an Entire Test Suite in Ready!API”

Required subdocuments Mongoose

Required subdocuments Mongoose

I have defined the following Mongoose schemas
var subSchema = new Schema({
propertySub: {type: String, required: true}
});

var mainSchema = new Schema({
mainProperty: {type: String, required: true},
subs: [subSchema]
});

As you may see there is a required property on subSchema, … Read the rest “Required subdocuments Mongoose”