I am new to mongodD. Although i have wrote correct logic to push object inside cardsData bankCardsArray, but i am not able to make logic to edit a card.
**I have following Data in MongoDB, **
UserData = {
"_id": "63b43ab32fc8d3c100cafecc",
"name": "Praveen Lohar",
"email": "pr********#gmail.com",
"password": "$2b$12$3nwifHakrBu94BwLXAC4Nu16Kw0.xyW8vAIPTMSgY7cYttVklDIZq",
"loginIdsArray": [
{
"title": "Airtel App",
"logoIndex": 3,
"category": "Finance",
"app": "Airtel Thanks",
"username": "p******#gmail.com ",
"password": "xxxxxxx",
"isFavourite": false,
"_id":"63b440ee738a50fc333df3ca"
}
],
"cardsData": {
"bankCardsArray": [
{
"title": "SBI CC",
"logoIndex": 72,
"category": "Bank",
"cardHolder": "Prsscscs",
"cardNumber": "524xxxxxxxx20xx",
"expiry": "23/54",
"cvv": "00",
"isFavourite": false,
"_id": "63b974adb9acaa24a4ebec8b"
},
{
"title": "AXIS CC",
"logoIndex": 85,
"category": "Bank",
"cardHolder": "blsllslss",
"cardNumber": "524xxxxxxxx20xx",
"expiry": "23/54",
"cvv": "00",
"isFavourite": false,
"_id": "63b974adb9acaa24a4ebe5f"
}
],
"identityCardsArray": [
{
"title": "Aadhar Card",
"logoIndex": 98,
"category": "Identity",
"cardHolder": "Name_1",
"cardNumber": "54*******455454",
"issueDate": "2012",
"dob": "23/05",
"isFavourite": false,
"_id":"63b974e6bd0d03c116955f67"
}
],
"licenseCardsArray": [
{
"title": "Two Wheeler License",
"logoIndex": 0,
"category": "License",
"cardHolder": "Klaus Michealson",
"licenseNumber": "RJ/22/ADL-542/474/01",
"expiry": "2036",
"dob": "13/06",
"isFavourite": false,
"_id":"63b97535bd0d03c116955f69"
}
]
}
}
I want to find the user with _id
Then for that user i want to got to cardsData object
Then in cardsData object i want to got to bankCardsArray
Then in bankCardsArray , i want to update fields of a card with particular id
Const res = findOneAndUpdate(
{ 'cardsData.bankCardsArray._id':card_id },
{ $set{ 'cardsData.bankCardsArray.$.title': req.body.title });
Use "." operator to access nested fields.
Refer these mongodb documentation
query-array-of-documents
query-embedded-documents.
Hope this helps.
Related
I'm making an API Rest with node, express, typescript and mongoose. I have a method GET that return this result:
{
"success": true,
"status": 200,
"message": "categories listed",
"data": [
{
"_id": "612650e55fe1ce0de138e2af",
"products": [
{
"_id": "612650e55fe1ce0de138e2b0",
"productID": {
"reviews": [
"611e61ba8cb43f7454787ebb",
"611e62008cb43f7454787ebc"
],
"_id": "610b18f3e2244a187b36f2d7",
"title": "PS4",
"description": "La mejor consola del mercado del mundo, mundial",
"photo": "https://amazon-clone-jparrot.s3.amazonaws.com/1628123519052",
"price": 400,
"stockQuantity": 23,
"__v": 0,
"category": "60fc6454b68717acc239cc6a",
"owner": "610b9ed8763da4308223aae0",
"averageRating": null,
"id": "610b18f3e2244a187b36f2d7"
},
"quantity": 1,
"price": 400
}
],
"owner": {
"_id": "611d2d39dfcc705972c1ccb8",
"name": "Jaume",
"email": "jaumeparrot2#gmail.com",
"password": "$2a$10$Rv9Rzrff6578feCdDjyeKuarKCSHYRqKp5n5wTi2IWtcLBOupvPgu",
"__v": 0,
"address": "611e9ccdf47c7a7a9cb1d5d9"
},
"estimatedDelivery": "Wednesday September 1st",
"__v": 0
}
]
}
The problem is that I need to retrieve the object "owner", that is, I need to recover this json:
{
"success": true,
"status": 200,
"message": "categories listed",
"data": [
{
"_id": "612650e55fe1ce0de138e2af",
"products": [
{
"_id": "612650e55fe1ce0de138e2b0",
"productID": {
"reviews": [
"611e61ba8cb43f7454787ebb",
"611e62008cb43f7454787ebc"
],
"_id": "610b18f3e2244a187b36f2d7",
"title": "PS4",
"description": "La mejor consola del mercado del mundo, mundial",
"photo": "https://amazon-clone-jparrot.s3.amazonaws.com/1628123519052",
"price": 400,
"stockQuantity": 23,
"__v": 0,
"category": "60fc6454b68717acc239cc6a",
"owner": {
"_id": "611d2d39dfcc705972c1ccb8",
"name": "Jaume",
"about": "My na is Jaume",
"__v": 0
},
"averageRating": null,
"id": "610b18f3e2244a187b36f2d7"
},
"quantity": 1,
"price": 400
}
],
"owner": {
"_id": "611d2d39dfcc705972c1ccb8",
"name": "Jaume",
"email": "jaumeparrot2#gmail.com",
"password": "$2a$10$Rv9Rzrff6578feCdDjyeKuarKCSHYRqKp5n5wTi2IWtcLBOupvPgu",
"__v": 0,
"address": "611e9ccdf47c7a7a9cb1d5d9"
},
"estimatedDelivery": "Wednesday September 1st",
"__v": 0
}
]
}
For generate this JSON, I'm using this method:
https://github.com/jparrot92/amazon-clone-back/blob/master/src/controllers/order.ts
To retrieve you should use data.owner. This will give owner details as object.
This is the solution:
const products = await Order.find({ owner: req.user._id })
.populate('owner')
.populate({
path: 'products.productID',
populate: {
path: 'owner',
model: 'Owner',
},
})
.exec();
I'm new to mongodb and I've been trying to query this doc for awhile now.
Im trying to query all the rooms that have a room name of 100.
json
{
"count": 3,
"reviews": [
{
"_id": "5f9d42a0a8e71e004643f584",
"user": {
"_id": "5f7308cde0a4a7a66bc3d184",
"name": "Guest"
},
"room": {
"_id": "5f98f9321fd5bb0045b3d886",
"name": "100",
},
"rating": 4,
},
{
"_id": "5f9d431ea8e71e004643f585",
"user": {
"_id": "5f7308cde0a4a7a66bc3d184",
"name": "Guest",
},
"room": {
"_id": "5f98f9321fd5bb0045b3d886",
"name": "100",
},
"rating": 5,
},
{
"_id": "5f9e74fea6c06a0046d3cae2",
"user": {
"_id": "5f7308cde0a4a7a66bc3d184",
"name": "Guest",
},
"room": {
"_id": "5f98fa8b1fd5bb0045b3d88a",
"name": "300",
},
"rating": 5,
}
]}
what I've tried
1. find({},{"reviews.room.name": {$eq: "100"}}) // getting a projection error
2. find({"reviews.room.name": "100"}) // getting null
Any help to the right direction would be greatly appreciated.
Check out the docs about how to use find:
https://docs.mongodb.com/manual/reference/method/db.collection.find/
and try this
db.reviews.find({
"room.name": "100"
})
Here is the playground with your example: https://mongoplayground.net/p/dPfH5fSOePq
did u try this ? const response = await Room.find({name: "100"})
I need to filter some users according to some fixed criteria. I have a user collection and a talent collection. The talent collection holds the reference to a master category collection.
What I need is to filter these users according to the category in the talent collection and some keys from the user collection.
For example I need to search for a user whose gender is 'male' and education 'BTech' and will have talents as a programmer and tester
my user collection is like,
{
"_id": "5f1939239bd35429ac9cd78f",
"isOtpVerified": "false",
"role": "user",
"adminApproved": 1,
"status": 0,
"languages": "Malayalam, Tamil, Telugu, Kannada",
"name": "Test user",
"email": "test#email.com",
"phone": "1234567890",
"otp": "480623",
"uid": 100015,
"bio": "Short description from user",
"dob": "1951-09-07T00:00:00.000Z",
"gender": "Male",
"education": "Btech",
"bodyType": "",
"complexion": "",
"height": "",
"weight": "",
"requests": [],
"location": {
"place": "place",
"state": "state",
"country": "country"
},
"image": {
"avatar": "5f1939239bd35429ac9cd78f_avatar.jpeg",
"fullsize": "5f1939239bd35429ac9cd78f_fullsize.png",
"head_shot": "5f1939239bd35429ac9cd78f_head_shot.jpeg",
"left_profile": "5f1939239bd35429ac9cd78f_left_profile.png",
"right_profile": "5f1939239bd35429ac9cd78f_right_profile.png"
},
"__v": 42,
"createdAt": "2020-07-23T07:15:47.387Z",
"updatedAt": "2020-08-18T18:54:22.272Z",
}
Talent collection
[
{
"_id": "5f38efef179aca47a0089667",
"userId": "5f1939239bd35429ac9cd78f",
"level": "5",
"chars": {
"type": "Fresher",
},
"category": "5f19357b50bcf9158c6be572",
"media": [],
"createdAt": "2020-08-16T08:35:59.692Z",
"updatedAt": "2020-08-16T08:35:59.692Z",
"__v": 0
},
{
"_id": "5f3b7e6f7e322948ace30a2c",
"userId": "5f1939239bd35429ac9cd78f",
"level": "3",
"chars": {
"type": "Fresher",
},
"category": "5f19359250bcf9158c6be573",
"media": [
{
"adminApproved": 0,
"status": 0,
"_id": "5f3c22573065f84a48e04a14",
"file": "id=5f1939239bd35429ac9cd78f&dir=test&img=5f1939239bd35429ac9cd78f_image_undefined.jpeg",
"description": "test",
"fileType": "image",
"caption": "test file"
},
{
"adminApproved": 0,
"status": 0,
"_id": "5f3c2d7a8c7f8336b0bfced2",
"file": "id=5f1939239bd35429ac9cd78f&dir=test&img=5f1939239bd35429ac9cd78f_image_1.jpeg",
"description": "this is a demo poster for testing",
"fileType": "image",
"caption": "A Test Poster"
}
],
"createdAt": "2020-08-18T07:08:31.532Z",
"updatedAt": "2020-08-18T19:35:22.899Z",
"__v": 2
}
]
And the category in the above document is a separate one populated to this. the category collection as,
[
{
"_id": "5f19359250bcf9158c6be573",
"status": true,
"title": "Testing",
"description": "Application tester",
"code": "test",
"characteristics": [],
"createdAt": "2020-07-23T07:00:34.221Z",
"updatedAt": "2020-07-23T07:00:34.221Z",
"__v": 0
},
{
"status": true,
"_id": "5f29829a705b4e648c28bc88",
"title": "Designer",
"description": "UI UX Designer",
"code": "uiux",
"createdAt": "2020-08-04T15:45:30.125Z",
"updatedAt": "2020-08-04T15:45:30.125Z",
"__v": 0
},
{
"_id": "5f19357b50bcf9158c6be572",
"status": true,
"title": "programming",
"description": "Java programmer",
"code": "program",
"createdAt": "2020-07-23T07:00:11.137Z",
"updatedAt": "2020-07-23T07:00:11.137Z",
"__v": 0
}
]
So my filter terms will be;
{
categories: ["5f19359250bcf9158c6be573", "5f19357b50bcf9158c6be572"],
minAge: 18,
maxAge: 25,
minHeight: 5,
maxHeight: 6,
minWeight: 50,
maxWeight: 80,
complexion: "white",
gender: "male",
}
And the expected result will be a user have both the above talents and followed conditions,
{
users: { ..User details.. },
medias: { ...medias from the matching talents.. }
}
If there are two collections you need to join them either by primary key or _id with foriegn fields and you can use $lookup with $match to filter down.
Documentation
You need to use $lookup with pipeline,
$match you condition for category match
$lookup to join users collection
$match conditions for users collections fields
$match exclude documents that don't found matching users of criteria passed in conditions
db.talents.aggregate([
{
$match: {
category: { $in: ["5f19359250bcf9158c6be573", "5f19357b50bcf9158c6be572"] }
}
},
{
$lookup: {
from: "users",
as: "users",
let: { userId: "$userId" },
pipeline: [
{
$match: {
$expr: {
$and: [
{ $eq: ["$$userId", "$_id"] },
{ $eq: ["$gender", "Male"] },
{ $eq: ["$education", "Btech"] }
// ... add you other match criteria here
]
}
}
}
]
}
},
{ $match: { users: { $ne: [] } } }
])
Playground
Say I have a product collection like this:
{
"_id": "5a74784a8145fa1368905373",
"name": "This is my first product",
"description": "This is the description of my first product",
"category": "34/73/80",
"condition": "New",
"images": [
{
"length": 1000,
"width": 1000,
"src": "products/images/firstproduct_image1.jpg"
},
...
],
"attributes": [
{
"name": "Material",
"value": "Synthetic"
},
...
],
"variation": {
"attributes": [
{
"name": "Color",
"values": ["Black", "White"]
},
{
"name": "Size",
"values": ["S", "M", "L"]
}
]
}
}
and a variation collection like this:
{
"_id": "5a748766f5eef50e10bc98a8",
"name": "color:black,size:s",
"productID": "5a74784a8145fa1368905373",
"condition": "New",
"price": 1000,
"sale": null,
"image": [
{
"length": 1000,
"width": 1000,
"src": "products/images/firstvariation_image1.jpg"
}
],
"attributes": [
{
"name": "Color",
"value": "Black"
},
{
"name": "Size",
"value": "S"
}
]
}
I want to keep the documents separate and for the purpose of easy browsing, searching and faceted search implementation, I want to fetch all the data in a single query but I don't want to do join in my application code.
I know it's achievable using a third collection called summary that might look like this:
{
"_id": "5a74875fa1368905373",
"name": "This is my first product",
"category": "34/73/80",
"condition": "New",
"price": 1000,
"sale": null,
"description": "This is the description of my first product",
"images": [
{
"length": 1000,
"width": 1000,
"src": "products/images/firstproduct_image1.jpg"
},
...
],
"attributes": [
{
"name": "Material",
"value": "Synthetic"
},
...
],
"variations": [
{
"condition": "New",
"price": 1000,
"sale": null,
"image": [
{
"length": 1000,
"width": 1000,
"src": "products/images/firstvariation_image.jpg"
}
],
"attributes": [
"color=black",
"size=s"
]
},
...
]
}
problem is, I don't know how to keep the summary collection in sync with the product and variation collection. I know it can be done using mongo-connector but i'm not sure how to implement it.
please help me, I'm still a beginner programmer.
you don't actually need to maintain a summary collection, its redundant to store product and variation summary in another collection
instead of you can use an aggregate pipeline $lookup to outer join product and variation using productID
aggregate pipeline
db.products.aggregate(
[
{
$lookup : {
from : "variation",
localField : "_id",
foreignField : "productID",
as : "variations"
}
}
]
).pretty()
Here i like to explain my problem.
How can i write a mongoose query to retrieve every subdocument from JSON without passing parent_id.
[
{
"_id": "56a320003fe17cc7363dd0d7",
"name": "Leanna Jacobson",
"gender": "female",
"friends": [
{
"id": 0,
"name": "Riley Case"
},
{
"id": 1,
"name": "Herman Carter"
},
{
"id": 2,
"name": "Pacheco Woodard"
}
]
},
{
"_id": "56a3200001501cfa1ea2641d",
"name": "Juliana Bonner",
"gender": "female",
"friends": [
{
"id": 0,
"name": "Keller Woodward"
},
{
"id": 1,
"name": "Fern Knight"
},
{
"id": 2,
"name": "Cain Richards"
}
]
},
{
"_id": "56a3200006864c78ecb1aeed",
"name": "Gena Stark",
"gender": "female",
"friends": [
{
"id": 0,
"name": "Kate Franco"
},
{
"id": 1,
"name": "Araceli Mcclure"
},
{
"id": 2,
"name": "Molly Nelson"
}
]
},
{
"_id": "56a320006d868155161038b6",
"name": "Eve Gonzalez",
"gender": "female",
"friends": [
{
"id": 0,
"name": "Pam Lang"
},
{
"id": 1,
"name": "Christy Marks"
},
{
"id": 2,
"name": "Donovan Warren"
}
]
},
{
"_id": "56a3200066b94852f5680568",
"name": "Coleman Wooten",
"gender": "male",
"friends": [
{
"id": 0,
"name": "Roberta Olson"
},
{
"id": 1,
"name": "Roseann Reid"
},
{
"id": 2,
"name": "Kerri Russell"
}
]
}
]
Here i need to retrieve every friends details from the subdocument array friends for every parent.
so how can i write query for this?????
Suppose the name of your schema is Person, try this one.
//find all document, only select `friends` field from every document
Person.find({}, 'friends', function (err, friends) {
// the return friends is the [[friends], [friends], ...]
});