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Mongoose delete other objects after update

I'm having trouble with my update query on mongoose. I'm not sure why other objects get deleted after I update a specific object. the code works when I update but after that, the rest of the objects inside the array are getting deleted/removed. Literally, all of the remaining objects get deleted after the update request.
export const updateProduct = async (req,res) => {
const { id } = req.params;
try {
if(!mongoose.Types.ObjectId.isValid(id)) return res.status(404).json({ message: 'Invalid ID' });
await OwnerModels.findOneAndUpdate({'_id': id, store:{$elemMatch: {productname: req.body.store[0].productname }}},
{$set:
{
store:
{
productname: req.body.store[0].productname,
price: req.body.store[0].price,
quantity: req.body.store[0].quantity,
categoryfilter: req.body.store[0].categoryfilter,
description: req.body.store[0].description,
timestamp: req.body.store[0].timestamp
}
}
}, // list fields you like to change
{'new': true, 'safe': true, 'upsert': true});
} catch (error) {
res.status(404).json(error)
} }

I'm not sure why other objects get deleted after I update a specific object.
Because you are updating the whole object and it will replace the existing store array of object in the database,
You need to use arraFilters, and upsert is not effective in array of object updated, so i have commented,
await OwnerModels.findOneAndUpdate(
{
'_id': id,
store:{
$elemMatch: {
productname: req.body.store[0].productname
}
}
},
{
$set: {
store: {
"store.$[s].productname": req.body.store[0].productname,
"store.$[s].price": req.body.store[0].price,
"store.$[s].quantity": req.body.store[0].quantity,
"store.$[s].categoryfilter": req.body.store[0].categoryfilter,
"store.$[s].description": req.body.store[0].description,
"store.$[s].timestamp": req.body.store[0].timestamp
}
}
},
{
'arrayFilters': [
{ "s.productname": req.body.store[0].productname }
],
'new': true,
'safe': true,
// 'upsert': true
}
);

Mongodb, Delete one object from an array of objects using javascript

I am trying to remove one object from an array of my collection, which looks like this. It s a collection in Mongodb
Before deleting a specific object based on chartId, I need to check the userId and the name of the array. Then I need to delete the object.
I have written this code, but its not working. someone will tell me what exactly I am missing in this code.
delChartObj.updateOne(
{ 'userId': userId },
{ $pull: { "Color": { "chartId": req_chart_id } } },
{ safe: true, multi: true}, function (err, obj) {
if (err) { res.send.err }
res.status(200).send({ msg: "Deleted Sucessfully" });
});
In my case, userId = ADAM, array = "Color" and chartID = time
I am using mongoose for performing action
delChartObj is an object of model
const UserSchema = mongoose.Schema({
userId: { type: String, required: true, unique: true },
charts: { type: Object },
});

You should do findOneAndUpdate, the syntax will be something like:
Model.findOneAndUpdate(
< condition>,
{ $pull: { "Color.$.chartId": req_chart_id } } }, // The actual Query
{ new: true }
)

try this in pull
{ $pull: { "Chart.Color.$.chartId": req_chart_id } } },

MongoDB - set nested field using name from variable

I want to create new field in my document, lets call it "shelf", it will be an object.
Next I want to make two $set operations - I want to put arrays named "Tom" and "Anna" into my "shelf".
The problem is that I can't match correct query to do that.
I'm using nodejs MongoDB driver.
var myid = 'Tom-Anna'
var TomArray = ["Tom"]
var AnnaArray = ["Anna"]
await db.collection('people').updateOne(
{ pairid: myid },
{ $set: { shelf: TomArray } },
{ upsert: true }
)
await db.collection('people').updateOne(
{ pairid: myid },
{ $set: { shelf: AnnaArray } },
{ upsert: true }
)
Finally, the "shelf" document containing only "AnnaArray", because it's overwriting previously added "TomArray".
I can't add "Tom" and "Anna" array to "shelf" at the same time because content of arrays are generated separately.
I was trying this code:
var name = 'Tom'
var array = ['Tom']
await db.collection('people').updateOne(
{ pairid: myid },
{ $set: { shelf[name]: array } },
{ upsert: true }
)
But it's throwing following error:
{ $set: { shelf[name]: array } },
^
SyntaxError: Unexpected token [
My goal is to set my field like JSON:
"shelf": { "Tom": ["Tom"], "Anna": ["Anna"] }

You can use dot notation to specify nested key name:
var name = 'Tom'
var array = ['Tom']
db.people.update({ pairid: 1 }, { $set: { [`shelf.${name}`]: array } })

delete object from document array in mongodb collection using mongoose

I try to remove an element from an array attribute of my object.
This is my schema :
const userSchema = new mongoose.Schema({
userID: {
type: Number
},
name: {
type: String
},
names: [
{
text: { type: String, required: true },
order: {
type: Number,
required: true
}
}
]
});
this is my mongoose function :
User.findOne({ userID: Number(req.params.id) })
.then((user) => {
user.names.remove({text: "john", order: 3});
recipe.save(() => {
res.json(recipe);
});
})
I don't understand why it's not good :/

As per documentation of mongoose remove method remove operation is only executed when a callback is passed. To force execution without a callback, you must first call remove() and then execute it by using the exec() method.
Since you are trying to delete from array of objects then better would be to use pull operator. You don't have to do find and remove, you can simply use update method.
As per documentation of $pull operator you can either specify a value or a condition
i.e.
{ $pull: { <field1>: <value|condition>, <field2>: <value|condition>, ... } }
In your scenario you need to either specify complete value of one or more names item object or an condition that matches one or more names item
Add the condition where you match id of names item or if you don't know that then you can use elemMatch to match on few fields i.e.
Use following pull condition to solve the issue:
User.update(
{ _id: Number(req.params.id) },
{ $pull: { 'names': { $elemMatch: { 'text': "john", 'order': 3 }} } },
(error, success) => {
if (error) console.log(error);
console.log(success);
}
);

To Remove Element from array in document please follow as below
User.update(
{
userID: Number(req.params.id),
},
{
$pull: { names: { $elemMatch: { text: "john", order: 3 } } }
},
{
multi: false
}
).lean().then((Status) => {
console.log("Status-->", Status);
res.json('Removed Successfully');
})
Refer $pull operator at link

Add snapshot.val & snapshot.key to an array while I´m subscribed

I´m gonna break my head with a stone ^^"
I have this code:
this.af.database.list('/Documentos', { preserveSnapshot: true })
.subscribe(snapshots => {
snapshots.forEach(snapshot => {
console.log(snapshot.key, snapshot.val());
});
})
With that I extract all the data correctly, but now I want to add to an object array or something like that (I started few weeks ago with Firebase + Angular2).
I wanna fill that array to load the [ng2 smart table] and if I´m thinking partially well with a properly well-formed array I will fill the table but I don´t know how. Hope anyone can help.

If you want an map (object) with key: value, you can easily do this with Array.prototype.reduce():
const map = snapshots.reduce((map, snapshot) => {
map[snapshot.key] = snapshot.val();
}, {});

Well, according to the example : https://akveo.github.io/ng2-smart-table/#/examples/using-filters ...
(You can find the source code here: https://github.com/akveo/ng2-smart-table/blob/master/src/app/pages/examples/filter/basic-example-source.component.ts)
... you have to put your data in a JSON object :
settings = {
columns: {
id: {
title: 'ID',
filter: false,
},
name: {
title: 'Full Name',
filter: false,
},
username: {
title: 'User Name',
filter: false,
},
email: {
title: 'Email',
filter: false,
}
}
};
data = [
{
id: 1,
name: 'Leanne Graham',
username: 'Bret',
email: 'Sincere#april.biz',
},
{
id: 2,
name: 'Ervin Howell',
username: 'Antonette',
email: 'Shanna#melissa.tv',
}
];
"settings" contain your columns names and "data" must match the columns from "settings".
It would be easier if we knew a bit more of your code (columns of your table + data returned by your service), but I assume something like that would work :
data = [];
this.af.database.list('/Documentos', { preserveSnapshot: true })
.subscribe(snapshots => {
snapshots.forEach(snapshot => {
data.push(
{ [snapshot.key]: snapshot.val() }
);
});
})
Please note that this will create a JSON array with only one key/val per row. We do need to know more about your data to give you a propre answer.

Ok, I found the solution with a simple Array() x)
this.af.database.list('/Documentos', { preserveSnapshot: true })
.subscribe(snapshots => {
snapshots.forEach(snapshot => {
let length = todo.documentos.push(snapshot.val()); // documentos is an array in the class
todo.source.load(todo.documentos);
});
});