I looked through the MongoDB documentation and googled this question but couldn't really find a suitable answer.
encounter a problem where I need to search documents in a collection, but 3 fields name will change from one doc to another even though they are always at the same positions.
In the following example, the 366_DAYS can be 2_HOURS, 35_DAYs etc from document to document, but they will be in the same position.
The _XC4ucB8sEeSybaax341rBg will change to another random string from doc to doc, again it will be at the same position for all docs.
Other fields do not change name and stay at the same position.
I want a query to search for records where debitAmount >=creditAmount or endDate > now().
set02:PRIMARY> db.account.find({ _id: "53e51b1b0cf22cb159fa5f38" }).pretty()
{
"_id" : "53e51b1b0cf22cb159fa5f38",
"_version" : 6,
"_transId" : "e3e96377-a2d2-4b75-a946-f621df182c5e-2719",
"accountBalances" : {
"TEST_TIME" : {
"thresholds" : {
},
"deprovisioned" : false,
"quotas" : {
"366_DAYS" : {
"thresholds" : {
},
"quotaCode" : "366_DAYS",
"credits" : {
"_XC4ucB8sEeSybaax341rBg" : {
"startDate" : ISODate("2014-08-08T18:46:51.351Z"),
"creditAmount" : "86460",
"endDate" : ISODate("2014-08-09T18:48:19Z"),
"started" : true,
"debits" : {
"consolidated" : {
"creationDate" : ISODate("2014-08-08T19:15:55.396Z"),
"debitAmount" : "1300",
"debitId" : "consolidated"
}
},
"creditId" : "_XC4ucB8sEeSybaax341rBg"
}
}
}
},
"expiredReservations" : {
},
"accountBalanceCode" : "TEST_TIME",
"reservations" : {
}
}
},
"subscriberId" : "53e51b1b0cf22cb159fa5f38"
}
Can you use arrays for quotas and credits? That would make the path be the same.
"quotas": [
{
"days": 365,
"thresholds": {},
"credits": [
{
"id": "_XC4ucB8sEeSybaax341rBg"
}
]
}
]
Two cases come to mind. Which one applies to you is unclear to me from the question so providing for both possibilities.
CASE 1:
You will always have either 366_DAYS, 2_HOURS or 35_DAYS inside quotas and only one possible creditId per document. If this is the case, then why replicate the quotaCode and the creditId both as a sub-field and as the key inside quotas and credits respectively. You could alter the structure of your document as follows:
{
"_id": "53e51b1b0cf22cb159fa5f38",
"_version": 6,
"_transId": "e3e96377-a2d2-4b75-a946-f621df182c5e-2719",
"accountBalances": {
"TEST_TIME": {
"thresholds": {},
"deprovisioned": false,
"quotas": {
"thresholds": {
},
"quotaCode": "366_DAYS",
"credits": {
"startDate": ISODate("2014-08-08T18:46:51.351Z"),
"creditAmount": "86460",
"endDate": ISODate("2014-08-09T18:48:19Z"),
"started": true,
"debits": {
"consolidated": {
"creationDate": ISODate("2014-08-08T19:15:55.396Z"),
"debitAmount": "1300",
"debitId": "consolidated"
}
},
"creditId": "_XC4ucB8sEeSybaax341rBg"
}
},
"expiredReservations": {
},
"accountBalanceCode": "TEST_TIME",
"reservations": {
}
}
},
"subscriberId": "53e51b1b0cf22cb159fa5f38"
}
Now the fieldPath for fields in your queries would be:
"accountBalances.TEST_TIME.quotas.credits.creditAmount"
"accountBalances.TEST_TIME.quotas.credits.debits.consolidated.debitAmount"
"accountBalances.TEST_TIME.quotas.credits.startDate"
CASE 2:
quotas and credits may contain more than one subdocument. In this case viktortnk's approach of having quotas and credits as arrays will work. The fieldPath for your queries may then be written as:
"accountBalances.TEST_TIME.quotas.[zero-base-index].credits.[zero-base-index].creditAmount"
"accountBalances.TEST_TIME.quotas.[zero-base-index].credits.[zero-base-index].debits.consolidated.debitAmount"
"accountBalances.TEST_TIME.quotas.[zero-base-index].credits.[zero-base-index].startDate"
Related
I have been trying to update an Object for this collection. Below is the collection. Looking for Server 3.6 version.
Here The ask is Need to update the class name from "HISTORY" to " HISTORY_NEW". Need to do, for some students in the class. Need a query that will select all student records in student collection with "HISTORY" class in it and update them to "HISTORY_NEW ". I have around 30,000 records and not getting a bulk update method.
{
"_id" : ObjectId("611f90aa43f77a728879c395"),
"studentId" : "stu1",
"classes" : {
"History" : {
"TeacherName" : "T1",
"Marks" : [
{
"Internal": 15
}
]
},
"Geography" : {
"TeacherName" : "T2",
"Marks" : [
{
"Internal" : 20
}
]
}
},
"updateDate" : ISODate("2021-10-12T11:40:47.156Z")
}
This is the result I am expecting
{
"_id" : ObjectId("611f90aa43f77a728879c395"),
"studentId" : "stu1",
"classes" : {
"HISTORY_NEW" : {
"TeacherName" : "T1",
"Marks" : [
{
"Internal": 15
}
]
},
"Geography" : {
"TeacherName" : "T2",
"Marks" : [
{
"Internal" : 20
}
]
}
},
"updateDate" : ISODate("2021-10-12T11:40:47.156Z")
}
.Or is that even possible with the kind of collection above or going via code route?
So far this is what I have, without any success.
Get all students' Ids and then update the Class name. But that is also not working and don't think it is smart to update DB 30,000 times.
var studentIds =[];
db.studentSubject.find({"classes.History":{$exists:true}})
.forEach(function(u) { studentIds.push(u.studentId) })
studentIds.forEach(function(studentId) {
var result;
try {
result =db.studentSubject.updateOne(
{studentId:studentId},
{ $set : {"classes.History": "HISTORY_NEW",}},
{ upsert: false});
} catch (e) {
print(e);
}
});
From your scenario, you need $rename operator.
As discussed in the comment, you don't need to fetch each document to get studentId and then pass it to update each document. Just bulk update by checking the document has classes.History field.
db.collection.update({
"classes.History": {
$exists: true
}
},
{
$rename: {
"classes.History": "classes.HISTORY_NEW"
}
},
{
upsert: false,
multi: true
})
Sample Mongo Playground
I am the beginner of the MongoDB
Here I mentioned my database schema
{
"_id" : ObjectId("5e72067973c1241068a13647"),
"client_id" : "1001",
"dependent" : [
{
"dependent_name" : "asdsa",
"dependent_id" : "DE100"
},
{
"dependent_name" : "fdggd",
"dependent_id" : "DE101"
}
]
}
I want to add new field based on client_id and dependent_id
Here I mentioned My query but cannot able to get my expected result
db.collection.update({"client_id" : "1001","dependent.dependent_id":"DE101"}, {"$push": {"reason":"expired"}})
I am Expected Result is
{
"_id" : ObjectId("5e72067973c1241068a13647"),
"client_id" : "1001",
"dependent" : [
{
"dependent_name" : "asdsa",
"dependent_id" : "DE100"
},
{
"dependent_name" : "fdggd",
"dependent_id" : "DE101",
"reason":"expired"
}
]
}
so anyone help me to solve this
db.collection.update({"client_id" : "1001","dependent.dependent_id":"DE101"},
{$set:
{"dependent.$.reason":"expired"}})
Try this it works for me using $
As i am also new to mongodb, as i tried, i can give you suggestion to update whole document or replace it.
both way i tried, and query is as below.
Update
db.updateColl.update({ 'dependent.dependent_id': 'DE101' },
{
$set: {
"dependent": [
{
"dependent_name": "asdsa",
"dependent_id": "DE100"
},
{
"dependent_name": "fdggd",
"dependent_id": "DE101",
"reason": "expired"
}
]
}
});
Replace
db.updateColl.replaceOne({ 'dependent.dependent_id': 'DE101' }, {
"dependent": [
{
"dependent_name": "asdsa",
"dependent_id": "DE100"
},
{
"dependent_name": "fdggd",
"dependent_id": "DE101",
"reason": "expired"
}
]
})
may be it can help you. if any suggestion regarding it wellcome.
I have a Meteor Mongo document as shown below
{
"_id" : "zFndWBZTvZPgSKXHP",
"activityId" : "aRDABihAYFoAW7jbC",
"activityTitle" : "Test Mongo Document",
"users" : [
{
"id" : "b1#gmail.com",
"type" : "free"
},
{
"id" : "JqKvymryNaCjjKrAR",
"type" : "free"
},
],
}
I want to update a specific array element's email with custom generated id using Meteor query something like the below.
for instance, I want to update the document
if 'users.id' == "b1#gmail.com" then update it to users.id = 'SomeIDXXX'
So updated document should looks like below.
{
"_id" : "zFndWBZTvZPgSKXHP",
"activityId" : "aRDABihAYFoAW7jbC",
"activityTitle" : "Test Mongo Document",
"users" : [
{
"id" : "SomeIDXXX",
"type" : "free"
},
{
"id" : "JqKvymryNaCjjKrAR",
"type" : "free"
},
],
}
I have tried the below but didnt work.
Divisions.update(
{ activityId: activityId, "users.id": emailId },
{ $set: { "users": { id: _id } } }
);
Can someone help me with the relevant Meteor query ? Thanks !
Your query is actually almost right except for a small part where we want to identify the element to be updated by its index.
Divisions.update({
"activityId": "aRDABihAYFoAW7jbC",
"users.id": "b1#gmail.com"
}, {
$set: {"users.$.id": "b2#gmail.com"}
})
You might need the arrayFilters option.
Divisions.update(
{ activityId: activityId },
{ $set: { "users.$[elem].id": "SomeIDXXX" } },
{ arrayFilters: [ { "elem.id": "b1#gmail.com" } ], multi: true }
);
https://docs.mongodb.com/manual/reference/operator/update/positional-filtered/
You need to use the $push operator instead of $set.
{ $push: { <field1>: <value1>, ... } }
I have a Mongo collection the consists of a document and a nested object describing what collections the document is in and when it was added. I would like to remove key-value pairs from a nested object based on a condition, e.g. is the value (a date) before 1-1-2016.
Example:
{
"_id" : ObjectId("581214940911ad3de98002db"),
"collections" : {
"c01" : ISODate("2016-10-27T15:52:04.512Z"),
"c02" : ISODate("2015-11-21T16:06:06.546Z")
}
}
needs to become
{
"_id" : ObjectId("581214940911ad3de98002db"),
"collections" : {
"c01" : ISODate("2016-10-27T15:52:04.512Z"),
}
}
One alternative would be to change the schema to something like this:
{
"_id" : ObjectId("581214940911ad3de98002db"),
"collections" : [
{
"id": "c01",
"date": ISODate("2016-10-27T15:52:04.512Z")
},
{
"id": "c02",
"date" : ISODate("2015-11-21T16:06:06.546Z")
}
]
}
in which case removing a document from a would be easy. I am a bit reluctant to do that because it would complicate some of the other queries I would like to support. Thanks!
I prefer the second structure for your schema
{
"_id" : ObjectId("581214940911ad3de98002db"),
"collections" : [
{
"id": "c01",
"date": ISODate("2016-10-27T15:52:04.512Z")
},
{
"id": "c02",
"date" : ISODate("2015-11-21T16:06:06.546Z")
}
]
}
then able to remove from collections like this
db.collectionName.update(
{ },// if you want can add query for specific Id {"_id" : requestId},
{ $pull: { collections: { date: {$lt: yourDate} } } }, // if need can convert iso date string like: new Date(yourDate).toISOString()
{ multi: true }
)
I have face one use with mongodb.
below is my sample record.
{
"_id" : ObjectId("56fa21da0be9b4e3328b4567"),
"us_u_id" : "1459169911J4gPxpYQ7A",
"us_dealer_u_id" : "1459169911J4gPxpYQ7A",
"us_corporate_dealer_u_id" : "1459169173rgSdxVeMLa",
"us_oem_u_id" : "1459169848CK5yOpXito",
"us_part_number" : "E200026",
"us_sup_part_number" : "",
"us_alter_part_number" : "",
"us_qty" : 0,
"us_sale_qty" : 2,
"us_date" : "20160326",
"us_source_name" : "BOMAG",
"us_source_address" : "",
"us_source_city" : "",
"us_source_state" : "",
"us_zip_code" : "",
"us_alternet_source_code" : "",
"updated_at" : ISODate("2016-03-29T06:34:02.728Z"),
"created_at" : ISODate("2016-03-29T06:34:02.728Z")
}
I have try to get all recored having unique date
So, I have made below query using aggregate
.aggregate(
[
{
"$match":{
"yearSubstring":"2016",
"monthSubstring":"03",
"us_dealer_u_id":"1459169911J4gPxpYQ7A"
}
},
{
"$project":
{
"yearSubstring":{"$substr":["$us_date",0,4]},
"monthSubstring":{"$substr":["$us_date",4,2]},
"daySubstring":{"$substr":["$us_date",6,2]}
}
},
{
"$group":
{
"_id":{"monthSubstring":"$monthSubstring",
"yearSubstring":"$yearSubstring",
"daySubstring":"$daySubstring"
},
"daySubstring":{"$last":"$daySubstring"}
}
},
{"$sort":{"us_date":1}}
]
)
I have try both way to pass year and month (as string and as int)
but I have get blank result.
if I'm remove month and year from condition then record came.
mostly I have try all the diff. diff. solution but result is same.
Thank in advance.
You have written incorrect query.
You don't have yearSubstring and monthSubstring fields on this stage.
{
"$match":{
"yearSubstring":"2016",
"monthSubstring":"03",
"us_dealer_u_id":"1459169911J4gPxpYQ7A"
}
},
You should write as following:
.aggregate(
[
{
"$match":{
"us_dealer_u_id":"1459169911J4gPxpYQ7A"
}
},
{
"$project":
{
"yearSubstring":{"$substr":["$us_date",0,4]},
"monthSubstring":{"$substr":["$us_date",4,2]},
"daySubstring":{"$substr":["$us_date",6,2]}
}
},
{
"$match":{
"yearSubstring":"2016",
"monthSubstring":"03"
}
},
{
"$group":
{
"_id":{"monthSubstring":"$monthSubstring",
"yearSubstring":"$yearSubstring",
"daySubstring":"$daySubstring"
},
"daySubstring":{"$last":"$daySubstring"}
}
},
{"$sort":{"us_date":1}}
]
)
If you want to get other fields, you should include them into projection stage.