Is there a way to add or remove documents from an embedded array, and update existing documents
in an embedded array?
e.g. Given
{
"_id" : ObjectId("547dd21f6e04d152fccedf1b"),
"intF" : 0,
"arrayD" : [
{
"name" : "baz",
"contents" : "baz contents"
}
}
trying
db.dummy.update(
// query
{
"_id" : ObjectId("547dd21f6e04d152fccedf1b")
},
// update
{
$set : { "arrayD.0.contents": "no contents" },
$push : { arrayD : { $each : [ { name : "bam", contents : null } ] }
}
},
// options
{
"multi" : false, // update only one document
"upsert" : false // insert a new document, if no existing document match the query
}
);
gives error
Cannot update 'arrayD.0.contents' and 'arrayD' at the same time
The options I see are
Use $set and write whole array
Use multiple updates, one for $set to modify existing entries, one for $push/$pull to add/remove entries.
is there a better way?
Related
I have the current mongo collection and need to find and specific id inside an array and update its value.
{
"_id" : ObjectId("111fe6813abdeb1505f5111"),
"objectIdUser" : ObjectId("111fe6813abdeb1505f5111"),
"objectIdClasses" : [
{
"objectIdClass" : ObjectId("111fe6813abdeb1505f5111")
}
],
}
I tried to use the following query but It never updates.
db.classes.findOneAndUpdate(
{
objectIdUser: ObjectId("111fe6813abdeb1505f5111"),
"objectIdClasses.objectIdClass": ObjectId('111fe6813abdeb1505f5111')
},
{
$set:
{
"objectIdClasses.$.objectIdClass": ObjectId('111fe6813abdeb1505f5111')
}
}
);
The records exists, but I always get a null value and the value is never updated.
Follow the below steps carefully;
db.<collectionName>.updateOne(filter, updateDoc, options);
the filter go defines the document you want to change, just like the find.
the updateDoc defines the new changes
the options instruct the method to create a document if no documents match the filter
Example:
I have a database of shop collection with the following data in a products collection
{ "_id" : 1, "name" : "Pen", "price" : 1.2 }
If I want to change the "price" to of "Pen" to 5.0 then:
db.products.updateOne({name: "Pen"}, {$set: {price: 5.0}}, {upsert: true});
Note: all your changes should be inside the <$set> object
I have a collection with the documents like this with 25 documents
{
"_id" : ObjectId("<some id>"),
"code" : "1111",
"myArray" : ["Choocolate"]
},
{
"_id" : ObjectId("<some id>"),
"code" : "2222"
"myArray" : ["Choocolate"]
},
{
"_id" : ObjectId("<some id>"),
"code" : "3333",
"myArray" : ["Choocolate"]
},
{
"_id" : ObjectId("<some id>"),
"code" : "4444",
"myArray" : ["Choocolate"]
}
and so on
I want to add an item to an myArray only fore certain documents based on a condition. so I tried this
db.mycollection.update
({ "code":
{
"$nin": ["1111","2222"]
},
{
$push: { "myArray": "Coffee" }
}
)
I expect 'Coffee' to be added to myArray in all documents except the ones with code 1111 or 2222. But only it is added to an array only in one document.
How to I add an item to anArray in multiple documents based on a condition against a field in a document?
Based on the documentation update updates only a single element:
By default, the db.collection.update() method updates a single document. Include the option multi: true to update all documents that match the query criteria.
https://docs.mongodb.com/manual/reference/method/db.collection.update/
To update more use updateMany:
https://docs.mongodb.com/manual/reference/method/db.collection.updateMany/
I have a document like myPortCollection
{
"_id" : ObjectId("55efce10f027b1ca77deffaa"),
"_class" : "myTest",
"deviceIp" : "10.115.75.77",
"ports" : {
"1/1/x1" : {
"portId" : "1/1/x1",
healthState":"Green"
I tried to update
db.myPortCollection.update({
{ deviceIp:"10.115.75.77"},
{ "chassis.ports.1/1/x10.rtId":"1/1/x10" },
{ $set: { "chassis.ports.1/1/x10.healthState" : "Red" }
})
But I am getting error that attribute names mentioned is wrong,.Please help in specifying the syntax properly for embedded map document update.
The "query" portion is wrong as you have split conditions into two documents. It should be this:
db.myPortCollection.update(
{
"deviceIp":"10.115.75.77",
"chassis.ports.1/1/x10.rtId":"1/1/x10"
},
{ "$set": { "chassis.ports.1/1/x10.healthState" : "Red" } }
)
And as long as the query then matches ( valid data not shown in your question ) then the specified field will be set or added.
/* 0 */
{
"_id" : ObjectId("55addc2f8dab32aca87ce0bd"),
"partNum" : "part1",
"dest" : "First Part",
"sales" : [
"sale1",
"sale2",
"sale3"
],
"salesData" : {
"sale1" : {
"mcode" : "mc11",
"dtype" : [
"AAA",
"BBB"
]
}
}
}
/* 1 */
{
"_id" : ObjectId("55addc408dab32aca87ce0be"),
"partNum" : "part2",
"dest" : "Second Part",
"sales" : [
"sale1",
"sale2",
"sale3"
],
"salesData" : {
"sale1" : {
"mcode" : "mc22",
"dtype" : [
"AAA",
"BBB"
]
}
}
}
I am not that much efficient in writing mongo script. My requirement is to append one more value to "dtype" array wherever "mcode" is "mc11" in all of the documents inside the collection. Above is the two document output from my collection. I was using the below script to do it and its not working. Can anyone please help me
db.testingRD.find().forEach( function(myDocument)
{
db.testingRD.update({id: myDocument._id}, {$push : {"salesData.sale1.dtype" : "DDD"}});
});
To append one more value to "dtype" array wherever "mcode" is "mc11", use the following update where the query object is the selection criteria for the update and is the same query selector as in the find() method, the update object has the $push modifications to apply and then the options document which is optional. If that is set to true, it updates multiple documents that meet the query criteria:
var query = { "salesData.sale1.mcode": "mc11" },
update = {
"$push": { "salesData.sale1.dtype": "DDD" }
},
options = { "multi": true };
db.testingRD.update(query, update, options);
You had a typing mistake in the script (you forgot an underscore):
db.testingRD.find().forEach( function(myDocument)
{
db.testingRD.update({_id: myDocument._id}, {$push : {"salesData.sale1.dtype" : "DDD"}});
});
I always use a trick when an update seams to not working: I change the update with a printjson + find so that I can see if it is matching anything:
db.testingRD.find().forEach( function(myDocument) { printjson(db.testingRD.find({_id: myDocument._id})) } );
I have a set of mongodb documents with the following structure:
{
"_id" : NUUID("58fbb893-dfe9-4f08-a761-5629d889647d"),
"Identifiers" : {
"IdentificationLevel" : 2,
"Identifier" : "extranet\\test#test.com"
},
"Personal" : {
"FirstName" : "Test",
"Surname" : "Test"
},
"Tags" : {
"Entries" : {
"ContactLists" : {
"Values" : {
"0" : {
"Value" : "{292D8695-4936-4865-A413-800960626E6D}",
"DateTime" : ISODate("2015-04-30T09:14:45.549Z")
}
}
}
}
}
}
How can I make a query with the mongo shell which finds all documents with a specific "Value" (e.g.{292D8695-4936-4865-A413-800960626E6D} in the Tag.Entries.ContactLists.Values path?
The structure is unfortunately locked by Sitecore, so it is not an options to use another structure.
As your sample collection structure show Values is object, it contains only one Value. Also you must check for Value as it contains extra paranthesis. If you want to get Value from given structure try following query :
db.collection.find({
"Tags.Entries.ContactLists.Values.0.Value": "{292D8695-4936-4865-A413-800960626E6D}"
})