I want to update a collection called SMUProfiles, through a method called classroom.delete. I want to pull out the classroom_id from 2 places inside SMUProfiles i.e. one inside classrooms.owner which has an array of codes, and the other inside array classrooms.students.
I have successfully one the $set part, and now trying to add the $pull, but $pull doesn't seem to work.
Can we do the $set and $pull in such way?
/* Method for deleting Classroom */
'classroom.delete'(classroom_id) {
if (!this.userId) {
throw new Meteor.Error('not-authorised');
}
Classrooms.remove(classroom_id)
let classids = Classrooms.find({ owner: this.userId }).fetch().map(function(classrooms){
return classrooms._id })
//console.log(classids);
SMUProfiles.update({
owner: this.userId,
}, {
$set: {
'classrooms.owner': classids
},
$pull: {
'classrooms.students': classroom_id
}
}
)
}
You're trying to $set and $pull on the same field in the same update - the two operations conflict; so no, you can't use these operators in this way.
You could easily split this into two:
SMUProfiles.update(
{ owner: this.userId },
{ $set: { 'classrooms.owner': classids },
);
SMUProfiles.update(
{ owner: this.userId },
{ $pull: { 'classrooms.students': classroom_id },
);
See e.g. this answer
Related
I just want to Publish the relational Data for a Publication to client, but the issue is my Relational Data field is array of ID's of a Different Collection, I tried Different Packages but all works with single Relational ID but not working with Array of relational ID's, let assume I have two Collection Companies and Meteor.users below is my Company Document Looks like
{
_id : "dYo4tqpZms9j8aG4C"
owner : "yjzakAgYWejmJcuHz"
name : "Labbaik Waters"
peoples : ["yjzakAgYWejmJcuHz", "yjzakAgYWejmJcuHz"],
createdAt: "2019-09-18T15:33:29.952+00:00"
}
here you can see peoples field contains the user ID's as Array, so How I publish this userId's as user Documents, as for example I tried the most popular meteor package named publishComposit, when I tried Loop in Children's find, I got undefined in children i.e below
publishComposite('compoundCompanies', {
find() {
// Find top ten highest scoring posts
return Companies.find({
owner: this.userId
}, {sort: {}});
},
children: [
{
find(company) {
let cursors = company.peoples.forEach(peopleId => {
console.log(peopleId)
return Meteor.users.find(
{ _id: peopleId },
{ fields: { profile: 1 } });
})
//here cursor undefined
console.log(cursors)
return cursors
}
}
]
});
and if I implement async loop in children's find I got error like below code
publishComposite('compoundCompanies', {
find() {
// Find top ten highest scoring posts
return Companies.find({
owner: this.userId
}, {sort: {}});
},
children: [
{
async find(company) {
let cursors = await company.peoples.forEach(peopleId => {
console.log(peopleId)
return Meteor.users.find(
{ _id: peopleId },
{ fields: { profile: 1 } });
})
//here cursor undefined
console.log(cursors)
return cursors
}
}
]
});
the error occured in above code is Exception in callback of async function: TypeError: this.cursor._getCollectionName is not a function
I don't know what I am exactly doing wrong here, or implementing package function not as intended any help will be greatly appropriated
EDIT: my desired result should be full user documents instead of ID no matter it mapped in same peoples array or as another fields I just want as below
{
_id: "dYo4tqpZms9j8aG4C",
owner: "yjzakAgYWejmJcuHz",
name: "Labbaik Waters",
peoples: [
{
profile: {firstName: "Abdul", lastName: "Hameed"},
_id: "yjzakAgYWejmJcuHz"
}
],
createdAt: "2019-09-18T15:33:29.952+00:00"
}
I ran into a similar problem couple of days ago. There are two problems with the provided code. First, using async; it's not needed and rather complicates things. Second, publishComposite relies on receiving one cursor not multiple within its children to work properly.
Below is a snippet of the code used to solve the problem I had, hopefully you can replicate it.
Meteor.publishComposite("table.conversations", function(table, ids, fields) {
if (!this.userId) {
return this.ready();
}
check(table, String);
check(ids, Array);
check(fields, Match.Optional(Object));
return {
find() {
return Conversation.find(
{
_id: {
$in: ids
}
},
{ fields }
);
},
children: [
{
find(conversation) {
// constructing one big cursor that entails all of the documents in one single go
// as publish composite cannot work with multiple cursors at once
return User.find(
{ _id: { $in: conversation.participants } },
{ fields: { profile: 1, roles: 1, emails: 1 } }
);
}
}
]
};
});
I trying to pass data that is fetched from the server to a popup.I tried doing something like this but its not working.Please help-
{
path:'/merchant/:id',
beforeEnter: function (routeTo, routeFrom, resolve, reject) {
console.log(routeTo.params.id);
Meteor.call('getOne',routeTo.params.id,(error,result) => {
if (result) {
resolve(
{
popup: {
el:document.querySelector('#sample-popup')
}
},
// Custom template context
{
context: {
users: result,
},
}
)
}
});
} ,
},
According to the docs, you use resolve callback wrong !
You can also read this understand how to achieve this
Bit of a noob question. I'm using meteor-native-mongo on the server to access the aggregate function in MongoDB, however, I'm not sure how I return and access the results on the client side. In the past subscribing and then accessing the collections on the client was pretty straightforward using the collection.find({}) function, however, I don't understand how to do it with the aggregate function. Can someone please explain.
Meteor.publish('companies', function(limit) {
db.collection('companies').aggregate([{ $group: { _id: { location: "$google_maps.geometry_location" }, companies: { $addToSet: { name: "$company_name" } }, count: { $sum: 1} } }, { $match: { count: { $gt: 1 } } }]).toArray((err, result) => {
console.log(result);
return result;
});
});
Use this.added, this.changed, this.removed from https://docs.meteor.com/api/pubsub.html#Subscription-added ...
Meteor.publish('companies', function(limit) {
var subscription = this;
db.collection('companies').aggregate([{ $group: { _id: { location: "$google_maps.geometry_location" }, companies: { $addToSet: { name: "$company_name" } }, count: { $sum: 1} } }, { $match: { count: { $gt: 1 } } }]).toArray((err, result) => {
subscription.added('companies-aggregate', 'geometry-grouping', {result: result});
});
});
// On the client:
var CompaniesAggregate = new Mongo.Collection('companies-aggregate');
// Inside a reactive context, like a helper
var result = CompaniesAggregate.findOne('geometry-grouping').result;
Naturally, to make it reactive, you'd have to know when the results of the aggregations would change. There is no automatic way to do that--you would have to resolve that logically, with your own code.
The best way to do that is to save the subscription variable in an array somewhere in a higher scope, and called changed on all the subscriptions for 'companies' for the geometry-grouping document, computing an updated result.
The commenter's solution won't be realtime; in other words, if one user makes a change to the e.g. company name or location, another user won't see those changes.
Forms of this question have been asked a few times, but I've been unable to find a solution:
I have a schema like this (simplified):
StatusObject = new SimpleSchema({
statusArray: [statusSchema]
});
where statusSchema is
{
topicId:{
type: String,
optional: true
},
someInfo:{
type: Number,
optional: true,
decimal: true
},
otherInfo:{
type: Number,
optional: true
}
}
I am trying to upsert - with the following meteor method code:
var upsertResult = BasicInfo.update({
userId: this.userId,
statusArray: {
$elemMatch: { topicId : newStatus.topicId }
}
}, {
$set: {
"statusArray.$.topicId": newStatus.topicId,
"statusArray.$.someInfo": newStatus.someInfo,
"statusArray.$.otherInfo": newStatus.otherInfo
}
}, {
multi: true,
upsert: true
});
But I keep getting an error: statusArray must be an array
I thought by adding the $, I was making sure it is recognized as an array? What am I missing?
It seems (after your clarification comments), that you want to find a document with particular userId and modify its statusArray array using one of these scenarios:
Update existing object with particular topicId value;
Add a new object if the array doens't have one with particular topicId value.
Unfortunately, you can't make it work using just one DB query, so it should be like this:
// try to update record
const updateResult = BasicInfo.update({
userId: this.userId,
'statusArray.topicId': newStatus.topicId
}, {
$set: {
"statusArray.$": newStatus
}
});
if (!updateResult) {
// insert new record to array or create new document
BasicInfo.update({
userId: this.userId
}, {
$push: {
statusArray: newStatus
},
$setOnInsert: {
// other needed fields
}
}, {
upsert: true
});
}
Your code is treating StatusArray as an object,
Before you do the upsert, build the status array first, assuming that your current value is currentRecord
newStatusArray = currentRecord.statusArray
newStatusArray.push({
topicId: newStatus.topicId,
someInfo : newStatus.someInfo,
otherInfo: newStatus.otherInfo
})
and in the upsert, simply refer to it like this
$set: { statusArray: newStatusArray}
I'm publishing this user information (as a test FYI, not going to reveal all this information in production)
Meteor.publish('user.private', function userPrivate() {
if (!this.userId) {
return this.ready();
}
return Meteor.users.find({
_id: this.userId
}, {
fields: {
'services.microsoft': 1,
'services.google': 1
}
});
});
I'm subscribing like this:
Template.App_body.onCreated(function appBodyOnCreated() {
this.subscribe('user.private');
});
I've confirmed that this exact query works and returns data using meteor mongo, yet this information does not appear in the Meteor.user() call on the client. What am I doing wrong?
try changing the publication name to null to make it automatically publish.
Meteor.publish(null, function () {
return Meteor.users.find(this.userId, {
fields: { /** ... fields here */ }
});
});