I got this kind of document
{
"_id" : "5339be1d9a703ab8708b45675339bed39aac7",
"description" : "data",
"name" : "data",
"members" : [
{
"user" : {
"$ref" : "users",
"$id" : ObjectId("5339be1d9a703ab8708b4567"),
"$db" : "someDb"
},
"type" : "Principal"
},
{
"user" : {
"$ref" : "users",
"$id" : ObjectId("5339c0c59a703a5d1f8b4569"),
"$db" : "someDb"
},
"type" : "Regular"
}
],
"owner" : "5339be1d9a703ab8708b4567",
}
And I'm trying to pull an element from the array members, finding it by the $id in user object.
I'm using Mongoose ODM.
This is my function:
> var conditions = {"_id" : data.guildId},
> update =
> {
> $pull :
> {
> 'members.user.$id' : new mongoose.Types.ObjectId(data.userId)
> }
> };
> var options = {upsert:false};
>
> Guild.update(conditions, update, options, leaveRoom);
There are no errors reported in my node js server or in the mongo log file, but the document remains unaffected.
The pull syntax you have is wrong. $pull takes an array, which in your case is "members".
You want this update instead:
{ "$pull" : { "members" : { "user.$id" : <your-condition> } }
Related
I'm kindly requesting your help for this query that I need to do and I'm not very proficient yet in MongoDB. My data structure looks like this:
db.getCollection('EventDateValidation').find({}):
/* 1 */
{
"_id" : ObjectId("5b7b2e3ae5e2100007717d81"),
"_class" : "com.overwatch.common.model.EventDateValidation",
"caseNo" : "OW000002269122201810201135",
"loanNo" : "000002269122",
"eventType" : "BREACLETTR",
"validationStepData" : [
{
"startDate" : {
"isChecked" : "Y",
"comments" : "",
"auditedBy" : "Mahalakshmi M",
"auditedDate" : "2018-12-12"
}
},
{
"completedDate" : {
"isChecked" : "Y",
"comments" : "",
"auditedBy" : "Mahalakshmi M",
"auditedDate" : "2018-12-13"
}
},
{
"deadlineDate" : {
"isChecked" : "Y",
"comments" : "",
"auditedBy" : "Mahalakshmi M",
"auditedDate" : "2018-12-13"
}
}
]
}
/* 2 */
{
"_id" : ObjectId("5b7c11095c2b4d0007bc8c54"),
"_class" : "com.overwatch.common.model.EventDateValidation",
"caseNo" : "OW000000854076201808181158",
"loanNo" : "000000854076",
"eventType" : "FORSALAPPR",
"validationStepData" : [
{
"startDate" : {
"comments" : ""
}
},
{
"completedDate" : {
"comments" : "Received Date = 8/4/2017"
}
},
{
"deadlineDate" : {
"comments" : ""
}
}
]
}
/* 3 */
{
"_id" : ObjectId("5b7ad05d5c2b4d0007bc8631"),
"_class" : "com.overwatch.common.model.EventDateValidation",
"caseNo" : "OW000000873954201810201235",
"loanNo" : "000000873954",
"eventType" : "HUDNOTIFCA",
"validationStepData" : [
{
"startDate" : {
"isChecked" : "Y",
"comments" : "",
"auditedBy" : "Brett Scott",
"auditedDate" : "2018-09-25"
}
},
{
"completedDate" : {
"isChecked" : "Y",
"comments" : "",
"auditedBy" : "Brett Scott",
"auditedDate" : "2018-09-25"
}
},
{
"deadlineDate" : {
"isChecked" : "Y",
"comments" : "",
"auditedBy" : "Brett Scott",
"auditedDate" : "2018-09-25"
}
}
]
}
From this collection, I need to find the documents that have an "auditedDate" in the "deadlineDate". In this example, I would find the documents 1 and 3. Please help me as I'm stuck on this one.
I have tried
db.getCollection('EventDateValidation').find({"validationStepData.deadlineDate.auditedDate":{$exists:true}})
But doesn't seem to work. Help please!
Just for clearing things up: the query in the question works well. I chatted with #Gabriel, and the problem was that Robomongo added hidden non-printable unicode characters to the query.
All in all, for any interested nomads, here are few ways to query an array of objects:
1) Implicit $elemMatch / simple dot notation on an array:
db.getCollection('EventDateValidation').find({"validationStepData.deadlineDate.auditedDate": {$exists:true}})
2) Explicit $elemMatch (we can have multiple query criteria):
db.getCollection('EventDateValidation').find({"validationStepData": { $elemMatch: {"deadlineDate.auditedDate" : {$exists:true} }}})
3) Array dot notation with an index position (when we know the exact position of an element inside an array):
db.getCollection('EventDateValidation').find({"validationStepData.2.deadlineDate.auditedDate": {$exists:true}})
Dot notation wouldn't work since you have an array of objects within validationStepData. You could use $elemMatch to apply your query conditions to the array elements that match your expression.
db.getCollection('EventDateValidation').find({"validationStepData" : { $elemMatch: {"deadlineDate.auditedDate" : {$exists:true} }}})
I am trying to get only the ObjectId's from One specific Document that is embedded in the projects Array.
Basically I am trying to make a database that will have users and each user will have there own projects.
Thank you !
db.users.find().pretty()
{
"_id" : ObjectId("5762c0cf2b9a78006373a684"),
"name" : "seq",
"pass" : "seq",
"projects" : [
{
"pid" : ObjectId("5762c0ba2b9a78006373a682"),
"name" : "aaa"
},
{
"pid" : ObjectId("5762c0ba2b9a78006373a683"),
"name" : "bbb"
}
]
}
{
"_id" : ObjectId("5762c28d2b9a78006373a687"),
"name" : "leq",
"pass" : "leq",
"projects" : [
{
"pid" : ObjectId("5762c2892b9a78006373a685"),
"name" : "ccc"
},
{
"pid" : ObjectId("5762c2892b9a78006373a686"),
"name" : "ddd"
}
]
}
let say we want two pids
{"pid" : ObjectId("5762c0ba2b9a78006373a682")} and
{"pid" : ObjectId("5762c2892b9a78006373a686"),}
and only inner documents
so required response should look like:
{
"_id" : ObjectId("5762c0ba2b9a78006373a682"),
"name" : "aaa"
},{
"_id" : ObjectId("5762c2892b9a78006373a686"),
"name" : "ddd"
}
Aggregation framework can manipulate documents, match only needed ones and transform inner structure by project phase:
var match = {
$match : {
"projects.pid" : {
$in : [ObjectId("5762c0ba2b9a78006373a682"),
ObjectId("5762c2892b9a78006373a686")]
}
}
}
var unwind = {
$unwind : "$projects"
};
// now move array objet as top level object
var project = {
$project : {
_id : "$projects.pid",
name : "$projects.name",
// list other fields here
}
}
db.vic.aggregate([match, unwind, match, project])
I'm using Meteor with MongoDB and can't seem to figure out how to access a single field from the objects in an object array.
My documents:
{
"_id" : "p6c4cSTb3cHWaJqpG",
"createdAt" : ISODate("2016-05-11T11:30:11.820Z"),
"username" : "admin",
"contacts" : [
{
"when" : ISODate("2016-05-11T11:30:32.350Z"),
"who" : "4YBufbE9PByJBkasy"
},
{
"when" : ISODate("2016-05-25T11:52:49.745Z"),
"who" : "z792kEEYbxyzyEAKp"
},
{
"when" : ISODate("2016-05-26T13:47:43.439Z"),
"who" : "4YBufbE9PByJBkasy"
},
{
"when" : ISODate("2016-05-26T13:48:22.828Z"),
"who" : "4YBufbE9PByJBkasy"
}
]
}
I want to check if a userId is in any of the objects, specifically in the who fields.
My Server-side code:
var me = Meteor.userId();
var findMe = Meteor.users.findOne(me);
if (_.include(findMe.contacts, {who: 4YBufbE9PByJBkasy})){
console.log("found in array");
}else{
console.log("Not found in array");
}
}
I have tried this several different ways, but came up with nothing.
When I console.log(findMe.contacts);, it returns the whole array like it should. but when I try to console.log(findMe.contacts.who);, it returns undefined.
Just need some direction on how to access the field of the object array. Thanks!
Looping through an array to see whether it contains a value is easily
done with Array.prototype.some:
var data = {
"_id" : "p6c4cSTb3cHWaJqpG",
"createdAt" : "2016-05-11T11:30:11.820Z",
"username" : "admin",
"contacts" : [
{
"when" : "2016-05-11T11:30:32.350Z",
"who" : "4YBufbE9PByJBkasy"
},
{
"when" : "2016-05-25T11:52:49.745Z",
"who" : "z792kEEYbxyzyEAKp"
},
{
"when" : "2016-05-26T13:47:43.439Z",
"who" : "4YBufbE9PByJBkasy"
},
{
"when" : "2016-05-26T13:48:22.828Z",
"who" : "4YBufbE9PByJBkasy"
}
]
};
var hascontact = function(contacts, id){
return contacts.some(function(contact){
return contact.who === id;
});
};
console.log(hascontact(data.contacts,'4YBufbE9PByJBkasy'));
console.log(hascontact(data.contacts,'z792kEEYbxyzyEAKp'));
console.log(hascontact(data.contacts,'asdfasdfasdfasdfa'));
I want to display content using a flat relational data structure (similar to that of Firefeed). Everything is working the way it should, except I can't figure out how to display the actual content. I'm struggling for a while now and I think I'm almost there actually, but something is still missing.
I have two references:
var userFeedRef = new Firebase(FIREBASE_URL).child("users").child($rootScope.currentUser.$id).child("feed");
var uploadsRef = new Firebase(FIREBASE_URL).child("uploads");
The JSON looks like this:
{
"uploads" : {
"-KGkxzQj0FM2CMAXo5Em" : {
"author" : "87a8b6c8-7f72-45c2-a8c5-bb93fe9d320d",
"date" : 1462184179564,
"name" : "Zizazorro",
"reasonUpload" : "Test",
"startSec" : 80,
"uploadTitle" : "Kid Ink - Promise (Audio) ft. Fetty Wap"
},
"-KGlCoD7kEa1k3DaAtlG" : {
"author" : "87a8b6c8-7f72-45c2-a8c5-bb93fe9d320d",
"date" : 1462188328130,
"name" : "Zizazorro",
"reasonUpload" : "Test2",
"startSec" : 80,
"uploadTitle" : "Kid Ink - Show Me ft. Chris Brown"
}
},
"users" : {
"87a8b6c8-7f72-45c2-a8c5-bb93fe9d320d" : {
"date" : 1459369248532,
"feed" : {
"-KGkxzQj0FM2CMAXo5Em" : true,
"-KGlCoD7kEa1k3DaAtlG" : true
},
"firstname" : "Bob",
"followers" : {
"e3de536b-03a1-4fb4-b637-ebcebaae55c6" : true
},
"following" : {
"e3de536b-03a1-4fb4-b637-ebcebaae55c6" : true
},
"regUser" : "87a8b6c8-7f72-45c2-a8c5-bb93fe9d320d",
"uploads" : {
"-KGkxzQj0FM2CMAXo5Em" : true,
"-KGlCoD7kEa1k3DaAtlG" : true
},
"username" : "Zizazorro"
},
"e3de536b-03a1-4fb4-b637-ebcebaae55c6" : {
"date" : 1459369285026,
"feed" : {
"-KGkxzQj0FM2CMAXo5Em" : true,
"-KGlCoD7kEa1k3DaAtlG" : true
},
"firstname" : "Anna",
"followers" : {
"87a8b6c8-7f72-45c2-a8c5-bb93fe9d320d" : true
},
"following" : {
"87a8b6c8-7f72-45c2-a8c5-bb93fe9d320d" : true
},
"regUser" : "e3de536b-03a1-4fb4-b637-ebcebaae55c6",
"username" : "Sven8k"
}
}
}
The problem is: How can I display the actual content of the upload, when there is only a ID reference? I need a reference to the IDs for a user (userFeedRef) and a reference to the actual content of those specific IDs, not all uploads (uploadsRef).
How can I display this user ng-repeat in my html? So for example: ng-repeat {{feed.reasonUpload}} for user1 has to show:
Test
Test2
EDIT I've looked at this example, but I can't figure out how to render the content on the actual html feed in my case
var commentsRef =
new Firebase("https://awesome.firebaseio-demo.com/comments");
var linkRef =
new Firebase("https://awesome.firebaseio-demo.com/links");
var linkCommentsRef = linkRef.child(LINK_ID).child("comments");
linkCommentsRef.on("child_added", function(snap) {
commentsRef.child(snap.key()).once("value", function() {
// Render the comment on the link page.
));
});
You can do something like this:
$scope.finalData = (Object).values($scope.firebaseData.uploads);
//$scope.firebaseData is data what you retrieving from firebase.
Hope this plunker will help you.
I am trying to delete "virtualNumber" : "12345" in the following document:
{
"_id" : ObjectId("50a9db5bdc7a04df06000005"),
"billingInfo" : null,
"date" : "dsfdsfsdfsd",
"description" : "sdfsdff",
"pbx" : {
"_id" : ObjectId("50a9db5bdc7a04df06000006"),
"did" : {
"1234567890" : {
"inventoryId" : "509df7547e84b25e18000001",
"didcountry" : "india",
"didState" : "bangalore",
"routeType" : "CallForward",
"didNumber" : "1234567890",
"didVirtualNumbers" : [
{
"virtualNumber" : "12345"
},
{
"virtualNumber" : "56789"
}
],
"id" : ObjectId("50a9db9acdfb4f9217000002")
}
},
},
I am using node.js, so I constructed a query in JavaScript:
var query = {_id: ObjectId("50a9db5bdc7a04df06000005")};
var obj = {};
obj["pbx.did.1234567890.didVirtualNumbers.virtualNumber"]=12345;
//problem
collection.update(query,{$pull:obj});
You need to match the array element like:
{"$pull": {"pbx.did.7259591220.didVirtualNumbers": {"virtualNumber": "12345"}}}
So you should change your code to:
obj["pbx.did.7259591220.didVirtualNumbers"]={"virtualNumber": "12345"};
Please refer to http://www.mongodb.org/display/DOCS/Updating#Updating-%24pull
It mentions the pull field should be an array.