Develop Reference

Show JSON in VUE.js

I made an API on Node.js, If I send some params I get the response, it's the same person but different language info, I would like to present it like in the second example I haven't been able to figure it out.
How I'm getting the data
[
{
"Id": 1,
"ced": "123",
"Name": "Andres",
"NativeLanguage": 1,
"Level": 100,
"NameLang": "spanish",
},
{
"Id": 1,
"ced": "123",
"Name": "Andres",
"NativeLanguage": 1,
"Level": 100,
"NameLang": "english",
}
]
how I want to see it
[
{
"Id": 1,
"ced": "123",
"Name": "Andres",
}
"Idiomas":
[
{
"NativeLanguage": 1,
"Level": 100,
"NameLang": "spanish",
},
{
"NativeLanguage": 1,
"Level": 100,
"NameLang": "spanish",
}
]
]
export default {
el: "myFormPerson",
data() {
return {
results:[],
ced:'',
}
},
methods: {
submitForm() {
axios.get('http://localhost:8080/person/' + this.ced)
.then((response) => {
this.results = response.data;
//console.log(this.results);
})
.catch(function (error) {
console.log(error);
})
.finally(function () {
});
//console.log(this.ced);
},
}
}
How I see it right now [1]: https://i.stack.imgur.com/ezHgH.png

Rather than pointlessly trying to get the format you want in the MySQL result (not possible) - work with the JSON to convert it to what you want
this.results=Object.values(response.data.reduce((acc,{Id,ced,Name,...rest})=>(acc[Id]||={Id,ced,Name,Idiomas:[]},acc[Id].Idiomas.push({...rest}),acc),{}));
working example
const have = [{
"Id": 1,
"ced": "123",
"Name": "Andres",
"NativeLanguage": 1,
"Level": 100,
"NameLang": "spanish",
},
{
"Id": 1,
"ced": "123",
"Name": "Andres",
"NativeLanguage": 1,
"Level": 100,
"NameLang": "english",
}
];
const want = Object.values(have.reduce((acc,{Id,ced,Name,...rest}) => (acc[Id]||={Id,ced,Name,Idiomas:[]},acc[Id].Idiomas.push({...rest}),acc),{}));
console.log(want);

How to update a object value when matched from an array in one mongodb document?

I have created a complex MongoDB document like this :
{
"_id": {
"$oid": "6354129e0f5b15991649fd10"
},
"orderId": "NEK-2209-06215614-79553",
"user": {
"$oid": "634d11565f254092fd666fd1"
},
"shippingAddress": {
"$oid": "6353aaf0fa6a1b0124c22532"
},
"billingAddress": {
"$oid": "6353aaf0fa6a1b0124c22532"
},
"productInfo": [
{
"seller": {
"$oid": "634d784c723ee32fc178aa7a"
},
"products": [
{
"productId": {
"$oid": "6353951e001ff50ea1a92602"
},
"quantity": 2,
"variation": "M",
"tax": 111
}
],
"price": 850,
"status": "Pending"
},
{
"seller": {
"$oid": "6354112f0f5b15991649fcfc"
},
"products": [
{
"productId": {
"$oid": "635411940f5b15991649fd02"
},
"quantity": 2,
"variation": "M",
"tax": 111
}
],
"price": 850,
"status": "Pending"
}
],
"total": 1671,
"shippingFees": 60,
"couponDiscount": 10,
"subtotal": 1721,
"paymentInfo": {
"paymentType": "Cash on Delivery"
},
"paymentMethod": "Home Delivery",
"createdAt": {
"$date": {
"$numberLong": "1666454174641"
}
},
"updatedAt": {
"$date": {
"$numberLong": "1666454174641"
}
},
"__v": 0
}
Here you can see that ProductInfo is an array. My Document structure is
id: "id"
productInfo: [
{seller: "id", ....},
{seller: "id", ....},
]
Now I have two things- id and seller
Actually here I want to do this- first, find by id, then filter productInfo by seller and update status to this particular seller. How can I do that ?
mydocument.findByIdAndUpdate(id,
//Here I have to write an update value to a particular seller from productInfo array.
, {new: true})
Please help me to do this. Can anyone help me?
**Note: Here I want to update only status value from a particular seller when matched find by document id.

You can do it with positional operator - $:
db.collection.update({
_id: ObjectId("6354129e0f5b15991649fd10"),
"productInfo.seller": ObjectId("6354112f0f5b15991649fcfc"),
},
{
"$set": {
"productInfo.$.status": "New status"
}
})
Working example

Find user is registered to a Event in MongoDb (aggregation)

I tried to find users who are registered for that event.
So I join multiple collections shown below -
Events.aggregate([
{ $match: { category: "group_event" } },
// collection where events are scheduled
{
$lookup: {
from: "group_events",
let: { eventId: "$eventID" },
pipeline: [
{
$match: {
$expr: {
$and: [
{ $eq: ["$_id", "$$eventId"] },
{ $gt: ["$time", new Date()] },
],
},
},
},
// register user collection
{
$lookup: {
from: "register_events",
let: { eventId: "$_id" },
pipeline: [
{ $match: { $expr: { $eq: ["$eventId", "$$eventId"] } } },
],
as: "registerUsers",
},
},
],
as: "events",
},
},
{ $unwind: "$events" },
])
and the output is now comingout -
[
{
"_id": "614d6dfd82cb36be231083c9",
"trainerId": "61488dc36b7ccedbc884d20a",
"category": "group_event",
"eventID": "614d6dfc82cb36be231083c7",
"createdAt": "2021-09-24T06:19:41.268Z",
"updatedAt": "2021-09-24T06:19:41.268Z",
"__v": 0,
"events": {
"_id": "614d6dfc82cb36be231083c7",
"groupName": "group name 4",
"category": "sdfsdf",
"time": "2021-09-27T07:44:58.762Z",
"description": "description",
"day": "sunday",
"platform": "zoom",
"notes": "22",
"skills_to_learn": [
"demo"
],
"status": "pending",
"trainerId": "61488dc36b7ccedbc884d20a",
"meetingLink": "https://us05web.zoom.us/j/81660534858?pwd=cGZaODVjdWJUQWNtN243MlNiVUN0UT09",
"type": "group_event",
**isUserRegisted : true / false,**
"createdAt": "2021-09-24T06:19:41.000Z",
"updatedAt": "2021-09-24T06:19:41.000Z",
"__v": 0,
"registerUsers": [
{
"_id": "614ed6b4b8a545acb8517e85",
"userId": "614d59371d11becb8e23f536",
"eventId": "614d6dfc82cb36be231083c7",
"question": "",
"createdAt": "2021-09-25T07:58:44.939Z",
"updatedAt": "2021-09-25T07:58:44.939Z",
"__v": 0
}
]
}
}
]
which is ok for me bu just wanted to add a key: value, heighlited on obove section
isUserRegisted : true / false
i tried with $addFields but can't came up with any solution. Basically I need to retrieve arrays from registerUsers - collection and on the same time match the userId

I was able to figure out this issue.
simply I need to use $project and $filter to get the data if available and at last use $cond to return true or false
{
$project: {
root: "$$ROOT",
userFound: {
$filter: {
input: "$registerUsers",
as: "ac",
cond: {
$eq: ["$$ac.userId", mongoose.Types.ObjectId(userId)],
},
},
},
},
},
{
$project: {
_id: 0,
document: "$$ROOT",
userFound: {
$cond: {
if: { $isArray: "$userFound" },
then: {
$cond: {
if: {
$gt: [{ $size: "$userFound" }, 0],
},
then: true,
else: false,
},
},
else: false,
},
},
},
},
// merging nested object with parents
{
$replaceRoot: {
newRoot: {
$mergeObjects: [
"$document.root",
{ isUserRegistered: "$userFound" },
],
},
},
},

How to compare two arrays and get matching output?

In my collection I have a category array as below.
I receive another array to my API like below
array = ['Chess','Rugby'];
I want to add a condition to my database query such that catName field from category objects exists in array.
currently I'm using the below code to get the results:
postSchemaModel.aggregate([{
"$geoNear": {
"near": { "type": "Point", "coordinates": [parseFloat(long), parseFloat(lat), ] },
"distanceField": "dist.calculated",
"maxDistance": parseInt(maxDistance),
"includeLocs": "dist.location",
"spherical": true
}
},
{ "$match": { "$or": [{ "typology": "post" }, { "typology": "chat_group" }] } },
{
"$match": {
"createdAt": {
"$gte": '2020-07-15 23:54:38.673665',
"$lt": '2020-06-15 23:54:38.673665'
}
}
},
{ "$limit": limit },
{ "$skip": startIndex },
{ "$sort": { "createdAt": -1 } },
{
"$lookup": {
"from": userSchemaModel.collection.name,
"localField": "user_id",
"foreignField": "_id",
"as": "user_id"
}
},
{
"$project": {
"post_data": 1,
"likes": 1,
"commentsCount": 1,
"post_img": 1,
"isUserLiked": 1,
"usersLiked": 1,
'exp_date': 1,
"has_img": 1,
"user_id": {
"img": "$user_id.img",
"_id": "$user_id._id",
"user_name": "$user_id.user_name",
"bday": "$user_id.bday",
"imagesource": "$user_id.imagesource",
"fb_url": "$user_id.fb_url",
},
"typology": 1,
"geometry": 1,
"category": 1,
"created": 1,
"createdAt": 1,
"updatedAt": 1,
}
},
]).then(async function(posts) {
//some code here
}
});
UPDATE : Sample Output
{
"_id": "5f0bd1b7d6ed4f0017e5177c",
"post_data": "bitch boy sudesh",
"likes": 2,
"commentsCount": 1,
"post_img": null,
"isUserLiked": true,
"usersLiked": [
"5f0bfa296ee76f0017f13787",
"5ef60bba10e9090017e2c935"
],
"exp_date": "2020-07-16T00:00:00.000Z",
"has_img": false,
"user_id": [
{
"img": [
"default-user-profile-image.png"
],
"_id": [
"5ef9a7a2922eba0017ce47e0"
],
"user_name": [
"Sudesh"
],
"bday": [
"1997-05-02T00:00:00.000Z"
],
"imagesource": [
"fb"
],
"fb_url": [
"https://platform-lookaside.fbsbx.com/platform/profilepic/?asid=1846836948784193&width=400&ext=1596011605&hash=AeRsB0QJQH7edpRT"
]
}
],
"typology": "post",
"geometry": {
"pintype": "Point",
"_id": "5f0bd1b7d6ed4f0017e5177d",
"coordinates": [
79.9200017,
6.7088167
]
},
"category": [
{
"_id": "5f0bd1b7d6ed4f0017e5177e",
"catID": "5eef80cc5de48230887f3aa8",
"catName": "Chess"
},
{
"_id": "5f0bd1b7d6ed4f0017e5177e",
"catID": "5eef80cc5de48230887f3aa8",
"catName": "Rugby"
}
],
"created": 1594610103626,
"createdAt": "2020-07-13T03:15:03.629Z",
"updatedAt": "2020-07-18T14:02:35.080Z"
}

You can use some method if you only want to get true/false result:
category.some(element => array.includes(element.catName))
If you want to get an array of all the category objects with cat names that also exist in the array then you can filter method:
category.filter(element => array.includes(element.catName))
If you have an object called array in your code and you want to find at array of categories where cat names are in the array then you can add the condition to your $match stage:
{ "$match": { "$or": [{ "typology": "post" }, { "typology": "chat_group" }] }, "category.catName": { $in: array } }

Using another $match with "$elemMatch" solved the problem
"$match": {
"category": { "$elemMatch": { "catName": "Rugby", "catName": "Carrom" } },
}

Mongoose: $sum if conditions

I have a query with find and aggregate that find in Schedule model, and calculate the sum of total of services and the sum of total value of services. But I need to make this sum (sum of totalServices) with a condition, where the ´status´ equal to 2. can i make this?
My query:
Schedule.find(findTerm)
.skip(req.body.page * req.body.limit)
.limit(Number(req.body.limit))
.select(
"service.name value scheduleStart scheduleEnd comissionValue status paymentMethod"
)
.exec((err, response) => {
if (err) res.status(500).send(err);
Schedule.find(findTerm)
.count()
.exec((error, count) => {
if (error)
res.status(500).send({
error,
code: 0,
message: "Erro."
});
Schedule.aggregate([{
$match: {
store: req.body.store,
}
},
{
$group: {
_id: {
id: "$store"
},
totalValue: {
$sum: "$value"
},
totalServices: {
$sum: {
$cond: [ {
$eq: [ "$status", 2 ]
}]
}
},
count: {
$sum: 1
}
}
}...
Result of my query:
...{
"service": {
"name": "CABELO + BARBA"
},
"comissionValue": 0,
"paymentMethod": 0,
"_id": "5bfec336c6f00d2e88f8d765",
"scheduleStart": "2018-11-28 14:35",
"scheduleEnd": "2018-11-28 15:45",
"status": 2,
"value": 75
},
{
"service": {
"name": "Barba"
},
"comissionValue": 0,
"paymentMethod": 0,
"_id": "5bfec3ffc6f00d2e88f8d766",
"scheduleStart": "2018-11-28 18:30",
"scheduleEnd": "2018-11-28 18:50",
"status": 2,
"value": 20
}
],
"count": 4299,
"group": [
{
"_id": {
"id": "5b16cceb56a44e2f6cd0324b"
},
"totalValue": 777780048281, //right value
"totalServices": 945, //wrong value
"count": 676
}
]
}
I need to filter the sum of totalServices to only objects if the status equal to 2 (I tried to use $cond but not worked).

You need to check the status conditionally($cond) i.e. if status is equal ($eq) to 2 then $sum the value field else pass 0
Schedule.aggregate([
{ "$match": { "store": req.body.store }},
{ "$group": {
"_id": { "id": "$store" },
"totalValue": { "$sum": "$value" },
"totalServices": {
"$sum": { "$cond": [{ "$eq": ["$status", 2] }, 1, 0] }
},
"count": { "$sum": 1 }
}}
])