I currently have a Mongo DB database with one collection ('locations') with one document:
{
"_id" : ObjectId("5875653b89513c8328416522"),
"name" : "Starcups",
"address" : "125 High Street, Reading, RG6 1PS",
"rating" : 3,
"facilities" : [
"Hot drinks",
"Food",
"Premium wifi"
],
"coords" : [
-0.9690884,
51.455041
],
"openingTimes" : [
{
"days" : "Monday - Friday",
"opening" : "7:00am",
"closing" : "7:00pm",
"closed" : false
},
{
"days" : "Saturday",
"opening" : "8:00am",
"closing" : "5:00pm",
"closed" : false
},
{
"days" : "Sunday",
"closed" : true
}
],
"reviews" : [
{
"author" : "Simon Holmes",
"id" : ObjectId("5875663389513c8328416523"),
"rating" : 5,
"timestamp" : ISODate("2013-07-15T23:00:00Z"),
"reviewText" : "What a great place. I can't say enough good things about it."
}
]
}
I need to alter the field "id" (part of the subdocument reviews) to "_id". I have tried, using other similar examples on StackExchange, the following code to no avail:
db.locations.update({}, {$rename:{"reviews.id":"reviews._id"}}, false, true);
But I receive the following error:
WriteResult({
"nMatched" : 0,
"nUpserted" : 0,
"nModified" : 0,
"writeError" : {
"code" : 16837,
"errmsg" : "cannot use the part (reviews of reviews.id) to traverse the element ({reviews: [ { author: \"Simon Holmes\", id: ObjectId('5875663389513c8328416523'), rating: 5.0, timestamp: new Date(1373929200000), reviewText: \"What a great place. I can't say enough good things about it.\" } ]})"
}
})
I get the same error when I try to alter any other field. Could someone point me in the right direction?
Update:
This seems to be a problem assessing the subdocument field as the following code executes fine:
db.locations.update({}, {$rename:{"name":"names"}}, false, true);
I have also tried searching through the relevant documentation: https://docs.mongodb.com/manual/reference/operator/update/rename/
That's because Reviews is an Array
You cannot $rename to do that , instead you need to $set the new name and $unset the old one
Related
I have this JSON:
{
"totalMemory" : 12206567424,
"totalProcessors" : 4,
"version" : "0.4.1",
"agent" : {
"reconnectRetrySec" : 5,
"agentName" : "1001",
"checkRecovery" : false,
"backPressure" : 10000,
"throttler" : 100
},
"logPath" : "/eq/equalum/eqagent-0.4.1.0-SNAPSHOT/logs",
"startTime" : 1494837249902,
"status" : {
"current" : "active",
"currentMessage" : null,
"previous" : "pending",
"previousMessage" : "Recovery:Starting pipelines"
},
"autoStart" : false,
"recovery" : {
"agentName" : "1001",
"partitionInfo" : { },
"topicToInitialCapturePosition" : { }
},
"sources" : [ {
"dataSource" : "oracle",
"name" : "oracle_source",
"captureType" : "directOverApi",
"streams" : [ ],
"idlePollingFreqMs" : 100,
"status" : {
"current" : "active",
"currentMessage" : null,
"previous" : "pending",
"previousMessage" : "Trying to init storage"
},
"host" : "192.168.191.5",
"metricsType" : { },
"bulkSize" : 10000,
"user" : "STACK",
"password" : "********",
"port" : 1521,
"service" : "equalum",
"heartbeatPeriodInMillis" : 1000,
"lagObjective" : 1,
"dataSource" : "oracle"
} ],
"upTime" : "157 min, 0 sec",
"build" : "0-SNAPSHOT",
"target" : {
"targetType" : "equalum",
"agentID" : 1001,
"engineServers" : "192.168.56.100:9000",
"kafkaOptions" : null,
"eventsServers" : "192.168.56.100:9999",
"jaasConfigurationPath" : null,
"securityProtocol" : "PLAINTEXT",
"stateMonitorTopic" : "_state_change",
"targetType" : "equalum",
"status" : {
"current" : "active",
"currentMessage" : null,
"previous" : "pending",
"previousMessage" : "Recovery:Starting pipelines"
},
"serializationFormat" : "avroBinary"
}
}
I trying using Jmeter to extract out the value of agentID, how can I do that using Jmeter, what would be better ? using extractor or json extractor?
what I am trying to do is to extract agentID value in order to use it on another http request sample, but first I have to extract it from this request.
thanks!
I believe using JSON Extractor is the best way to get this agentID value, the relevant JsonPath query will be as simple as $..agentID
Demo:
See the following reference material:
JsonPath - Getting Started - for initial information regarding JsonPath language, functions, operators, etc.
JMeter's JSON Path Extractor Plugin - Advanced Usage Scenarios - for more complex scenarios.
I have this JSON structure:
{
"groups" : {
"-KBxo9-RoY0eowWKeHkU" : {
"author" : "rsenov",
"members" : {
"-KBxo7ZU6McsmDOxyias" : true,
"-KBxo8_TUTW6NZze6xcd" : true,
"rsenov" : true
},
"name" : "Prueba 3"
}
},
"users" : {
"-KBxo7ZU6McsmDOxyias" : {
"avatar" : "owl2",
"groups" : {
"-KBxo9-RoY0eowWKeHkU" : true
},
"isUser" : false,
"name" : "Pepa"
},
"-KBxo8_TUTW6NZze6xcd" : {
"avatar" : "monkey",
"groups" : {
"-KBxo9-RoY0eowWKeHkU" : true
},
"isUser" : false,
"name" : "Lolas"
},
"rsenov" : {
"avatar" : "guest",
"groups" : {
"-KBxo9-RoY0eowWKeHkU" : true
},
"isUser" : true,
"name" : "Ruben",
}
}
}
and the security&rules file is:
{
"rules": {
".read": true,
".write": true,
"users": {
".indexOn": ["email", "groups"]
},
"groups": {
".indexOn": ["author", "name"]
}
}
}
I'm trying to run a query in order to get the ChildChanged snapshot:
DataService.dataService.USERS_REF.queryOrderedByChild("groups").queryEqualToValue(currentGroup.groupKey).observeEventType(.ChildChanged, withBlock: {snapshot in
print(snapshot)
})
DataService.dataService.USERS_REFcorresponds to the url that point to the "users" key, and currentGroup.groupKeyis equal to -KBxo9-RoY0eowWKeHkUin this case.
According to this query, I should get the snapshot of the child that has changed. For example, if I replace the user name "Pepa" to "Test", I should get the snapshot:
"-KBxo7ZU6McsmDOxyias" : {
"avatar" : "owl2",
"groups" : {
"-KBxo9-RoY0eowWKeHkU" : true
},
"isUser" : false,
"name" : "Test"
}
but this query never get's called...
Is there something wrong in my query?
"I'm trying to run a query in order to get the ChildChanged snapshot:" is a little odd.
You can query for data, or observe a node via ChildChanged.
If you just want to be notified of changes within the users node, add an observer to that node and when Pepa changes to Test, your app will be notified and provided a snapshot of the user node that changed.
var ref = Firebase(DataService.dataService.USERS_REF)
ref.observeEventType(.ChildChanged, withBlock: { snapshot in
println("the changed user is: \(snapshot.value)")
})
Oh, and no need for queryOrderedByChild since the snapshot will only contain the single node that changed.
I have a JSON schema that looks like this:
{
"_id" : ObjectId("5692a3e124de1e0ce2dfda22"),
"title" : "A Decade of Decadence, Pt. 2: Legacy of Dreams",
"year" : 2013,
"rated" : "PG-13",
"released" : ISODate("2013-09-13T04:00:00Z"),
"runtime" : 65,
"countries" : [
"USA"
],
"genres" : [
"Documentary"
],
"director" : "Drew Glick",
"writers" : [
"Drew Glick"
],
"actors" : [
"Gordon Auld",
"Howie Boulware Jr.",
"Tod Boulware",
"Chen Drachman"
],
"plot" : "A behind the scenes look at the making of A Tiger in the Dark: The Decadence Saga.",
"poster" : null,
"imdb" : {
"id" : "tt2199902",
"rating" : 8,
"votes" : 50
},
"awards" : {
"wins" : 0,
"nominations" : 0,
"text" : ""
},
"type" : "movie"
}
I am trying to find a movie released in 2013, that is rated PG-13 and has won no awards. I tried the following query in my Mongo Shell but no luck:
db.movieDetails.find({rated: "PG-13", year:2013, awards: { wins : 0}})
Any ideas?
From the documentation:
When the field holds an embedded document, a query can either specify an exact match on the embedded document or specify a match by individual fields in the embedded document using the dot notation
db.movieDetails.find( { "rated": "PG-13", "year": 2013, "awards.wins" : 0 } )
if this PG-13 rating query would work for you:
db.movieDetails.find({"rated": "PG-13"})
then i would try something like this:
db.movieDetails.find({$and: [{"rated": "PG-13"}, {"year": 2013}, {"awards": { "wins" : 0}}]} )
I have a mongo json object as follows
{
"_id" : new BinData(3, "RDHABb22XESWvP83FplqJw=="),
"name" : "NEW NODE",
"host" : null,
"aet" : null,
"studies" : ["1.3.12.2.1107.5.99.3.30000008061114424970500000589"],
"testcases" : [new BinData(3, "Zhl+zIXomkqAd8NIkRiTjQ==")],
"sendentries" : [{
"_id" : "1.3.12.2.1107.5.99.3.30000008061114424970500000589",
"Index" : 0,
"Type" : "Study"
}, {
"_id" : "cc7e1966-e885-4a9a-8077-c3489118938d",
"Index" : 1,
"Type" : "TestCase"
}]
}
The fields "Studies" and "TestCases" are now obsolete and I am now storing that information in a new field called SendEntries. I would like to get rid of the Studies and TestCases from the old entries and unmap those fields going forward. I want to know how I can update my current collections to get rid of the Studies and TestCases fields.
I'm just few weeks into Mongo.
You can use the $unset operator with update.
db.collection.update({},
{ $unset: {
"studies": "",
"testcases": ""
},
{ "upsert": false, "muti": true }
)
And that will remove all of the fields from all of your documents in your collection
Use $unset, there's a manual page e.g.
db.yourCollection.update( { },
{ $unset: {
Studies: "",
testcases: ""
}
},
{ multi: true }
)
[
{
"id" : 1,
"name" : "clevin",
"description" : "Version 1 : some desc",
"info" : [{
"id" : 2,
"name" : "abc",
"size" : "5 GB",
"used" : "25%"
},
{
"id" : 3,
"name" : "def",
"size" : "10 GB",
"used" : "15%"
},
{
"id" : 4,
"name" : "ghi",
"size" : "20 GB",
"used" : "5%"
}],
}]
This is my json file. When ever i mouse over "info.name"[abc, def, ghi] popover will display "name", "size" and "used".
but my issue is "abc" is the first value , when ever i mouseover it display value as expected. but when i mouseover "def" and "ghi" nothing is happened :(.
<ul type="none">
<li>
<label id="vol-label" class="muted">Info :</label>
{{#info}}
<span id="value"><a><u>{{name}}</u></a></span>
<span id="info-popover-title" class="hide">{{name}}</span>
<div id="info-popover-content" class="hide">
<p>Size : {{size}}</p> <p> Used : {{used}}</p><p> Status : {{status}}</p>
</div>
{{/info}}
</li>
</ul>
This is my template(mustache).
following is my view part(backbone.js)
events: {
"mouseenter #value" : "showDetails",
"mouseleave #value" : "hideDetails" ,
},
showDetails : function() {
this.$("#value").popover({
html : true,
title: function() {
return $("#info-popover-title").html();
},
content: function() {
return $("#info-popover-content").html();
}
});
this.$("#value").popover('show');
},
hideDetails : function() {
this.$("#value").popover('hide');
},
Please see my both screen shot to understand the issue. In fist screens hot see am getting all json info values "abc" "def" and "ghi" . in 2nd screen shot if i mouse over am getting "abc" values. but "def" and "ghi" value is not at all displaying. am not figure it out what is the issue :(.
I need to popove "def" and "ghi" values also. But i think something is wrong in my logic. Thanks in advance. This is really a rare issue for me might be others also.
If i use class insted of id following is the screen shot :(
2 things that you need to change here. First, is to use class to define for popovers instead of id. And the second is to abstract each <li> into its own view. Currently, you have one view that loops through the entire collection. All your events are currently tied to this one view. Doing those things I mentioned should fix this issue.
You can do something like this to have the become its own view which carries it's own sub-element. Just wrote this quickly and haven't tested but the idea is something like this. I'm not really sure which popover library you're using but the idea is generally the same.
Edit: Didn't realized you were using Mustache/Handlebars, so here's the JS Fiddle. Code
Now if you try to call each object it should work.
var abc =
{
"id" : 1,
"name" : "clevin",
"description" : "Version 1 : some desc",
"info" : {
"id" : 2,
"name" : "abc",
"size" : "5 GB",
"used" : "25%"
}
};
var def =
{
"id" : 3,
"name" : "def",
"size" : "10 GB",
"used" : "15%"
};
var ghi = {
"id" : 4,
"name" : "ghi",
"size" : "20 GB",
"used" : "5%"
};
var output =
{
show : function()
{
return abc["info"];
}
};
console.log(output.show());