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Update a field in nested array of objects containing another array of objects in mogoDb (JavaScript)

I have the following structure of Student collection in MongoDb:
{
"_id": "st1",
"student_courses": [
{
"_id": "c1",
"course_name": "Node",
"image": [
{
"_id": "c1img1",
"image": "img1.jpeg"
}
]
},{
"_id": "c2",
"course_name": "React",
"image": [
{
"_id": "c2img2",
"image": "img2.jpeg"
}
]
}
],
}
Now, I want to update the image name of img1.jpeg in all the documents that have same image name. So what I am doing is this:
Student.updateMany(
{ "student_courses._id": "c1"},
{
$set: {
"student_courses.$.course_name": "Node Crash Course",
"student_courses.$.image[0].image": complete_image_name,
},
}
);
Unexpectedly, this is updating course_name field but image. I have tried using $ positional argument instead of [0] but got the error Too many positional arguments ...... I don't know how to do that. My expected output should look like this:
{
"_id": "st1",
"student_courses": [
{
"_id": "c1",
"course_name": "Node Crash Course",
"image": [
{
"_id": "c1img1",
"image": "complete_image_name.jpeg"
}
]
},
:::::::::::::::::::
:::::::::::::::::::
],
}
{
"_id": "st2",
"student_courses": [
{
"_id": "c1",
"course_name": "Node Crash Course",
"image": [
{
"_id": "c1img1",
"image": "complete_image_name.jpeg"
}
]
},
:::::::::::::::::::
:::::::::::::::::::
],
}
Moreover, I have implemented almost every method posted in similar questions. Thanks in advance for any help.

Try to change the way you are referring to the first element in the array:
Student.updateMany(
{ "student_courses._id": "c1"},
{
$set: {
"student_courses.$.course_name": "Node Crash Course",
"student_courses.$.image.0.image": complete_image_name,
},
}
);

Why GraphQL is not detecting a new field in a JSON object

I'm new in Gatsby Development, in my website I'm using a community theme and modifying it in some things.
My problem started when I modified a JSON file called 'settings.json', where I added a field in the siteConfiguration object, the original file was this:
{"siteConfiguration": {
"logo": { "text": "chrisley"},
"navigation": {
"header": [
{ "label": "About", "url": "/#about" },
{ "label": "Blog", "url": "/blog" },
{ "label": "Features", "url": "/#features" },
{ "label": "Github", "url": "/#github" }
],
"ctaButton": {
"openNewTab": true,
"label": "Resume",
"url": "/resume.pdf"
},
"footer": [
{ "label": "Privacy", "url": "/privacy" },
{ "label": "Imprint", "url": "/imprint" }
]
},
"featureToggles": {
"useDarkModeAsDefault": false,
"useDarkModeBasedOnUsersPreference": true,
"useCookieBar": false
}
}
}
And the one where I added the field 'img' inside "logo" is the following:
{"siteConfiguration": {
"logo": { "text": "chrisley","img":"/content/images/logo-dark.png"},
"navigation": {
"header": [
{ "label": "About", "url": "/#about" },
{ "label": "Blog", "url": "/blog" },
{ "label": "Features", "url": "/#features" },
{ "label": "Github", "url": "/#github" }
],
"ctaButton": {
"openNewTab": true,
"label": "Resume",
"url": "/resume.pdf"
},
"footer": [
{ "label": "Privacy", "url": "/privacy" },
{ "label": "Imprint", "url": "/imprint" }
]
},
"featureToggles": {
"useDarkModeAsDefault": false,
"useDarkModeBasedOnUsersPreference": true,
"useCookieBar": false
}
}
}
And when I trying to get the img field in GraphQL with this Query:
query SiteConfiguration {
allSettingsJson: allContentJson {
settings: nodes {
siteConfiguration {
logo {
text
img
}
}
}
}
}
I get the next error:
{
"errors": [
{
"message": "Cannot query field \"img\" on type \"Logo\".",
"locations": [
{
"line": 7,
"column": 11
}
],
"extensions": {
"stack": [
"GraphQLError: Cannot query field \"img\" on type \"Logo\".",
" at Object.Field (/Users/chrisley/Documents/Development/Gatsby/chrisley_dev_website/node_modules/graphql/validation/rules/FieldsOnCorrectTypeRule.js:48:31)",
" at Object.enter (/Users/chrisley/Documents/Development/Gatsby/chrisley_dev_website/node_modules/graphql/language/visitor.js:323:29)",
" at Object.enter (/Users/chrisley/Documents/Development/Gatsby/chrisley_dev_website/node_modules/graphql/utilities/TypeInfo.js:370:25)",
" at visit (/Users/chrisley/Documents/Development/Gatsby/chrisley_dev_website/node_modules/graphql/language/visitor.js:243:26)",
" at validate (/Users/chrisley/Documents/Development/Gatsby/chrisley_dev_website/node_modules/graphql/validation/validate.js:69:24)",
" at graphqlMiddleware (/Users/chrisley/Documents/Development/Gatsby/chrisley_dev_website/node_modules/express-graphql/index.js:98:38)",
" at processTicksAndRejections (node:internal/process/task_queues:95:5)"
]
}
}
]
}
Hope you can help me guys, as always haha 😅

I'll be answering myself because I found the problem hahaha.
The problem was that I was missing updating the Schema of the theme, in particular of this theme was the file gastby/node/createSchemaCustomization.js
So.. after updating the file with this lines:
module.exports = ({ actions }) => {
actions.createTypes(`
...
type Logo {
text: String
img: String
}
...
`);
};
GraphQL detected my new field 'img' of the 'logo' object.

After some research I'm assuming you are using the following starter: https://github.com/konstantinmuenster/gatsby-theme-portfolio-minimal/tree/main/gatsby-theme-portfolio-minimal
Have you tried stopping your development process and cleaning Gatsby cache by:
gatsby clean
Or manually deleting the .cache folder.

Want to filter the json objects

I am having json objects with parent and child combination. I need to filter only the keys which matches the condition in child key/value pair.
response json is below,
I tried by using lodash filter and pickup and some more thing and result is only getting the child objects. But i need the output with including parent objects as well
"custom": {
"url": "",
"version": ""
},
"apple": {
"path": "www.testing.com",
"version": "4.5"
},
"mango": {
"path": "www.mango.com",
"version": "4.5"
},
"pineapple": {
"path": "www.pineapple.com",
"version": "4.4"
},
"jackfruit": {
"path": "www.jackfruit.com",
"version": "4.3"
}
Here, i need to filter only the objects which has version=4.5 and version="".
i need to filter the above json like below,
"custom": {
"url": "",
"version": ""
},
"apple": {
"path": "www.testing.com",
"version": "4.5"
},
"mango": {
"path": "www.mango.com",
"version": "4.5"
},
Please let me know how to make this possible.

Your question is ambiguity. According to your input/output sample, I guess code below is what you need:
let data = { "custom": {
"url": "",
"version": ""
},
"apple": {
"path": "www.testing.com",
"version": "4.5"
},
"mango": {
"path": "www.mango.com",
"version": "4.5"
},
"pineapple": {
"path": "www.pineapple.com",
"version": "4.4"
},
"jackfruit": {
"path": "www.jackfruit.com",
"version": "4.3"
}}
let result = _.pickBy(data,(v,k)=>v.version === "4.5" || v.version ==="" )
console.log(result)
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>

Extract information from json

So I have the following object from my controller, which has a name, a list of beans and a list of operations:
{
"name": "Charge",
"beans": [
],
"operations": [
{
"name": "getSize",
"returnType": "java.lang.Integer",
"description": "empty description",
"parameters": [
]
},
{
"name": "truncate",
"returnType": "java.lang.Void",
"description": "empty description",
"parameters": [
]
},
{
"name": "count",
"returnType": "java.lang.Integer",
"description": "empty description",
"parameters": [
{
"name": "javaCode",
"type": "java.lang.String",
"value": null
}
]
},
{
"name": "update",
"returnType": "java.lang.Integer",
"description": "empty description",
"parameters": [
{
"name": "javaSelectCode",
"type": "java.lang.String",
"value": null
},
{
"name": "javaUpdateCode",
"type": "java.lang.String",
"value": null
}
]
},
{
"name": "delete",
"returnType": "java.lang.Integer",
"description": "empty description",
"parameters": [
{
"name": "javaCode",
"type": "java.lang.String",
"value": null
}
]
},
{
"name": "dump",
"returnType": "java.lang.Void",
"description": "empty description",
"parameters": [
{
"name": "javaSelectCode",
"type": "java.lang.String",
"value": null
},
{
"name": "destinationPath",
"type": "java.lang.String",
"value": null
}
]
},
{
"name": "select",
"returnType": "java.lang.String",
"description": "empty description",
"parameters": [
{
"name": "javaCode",
"type": "java.lang.String",
"value": null
}
]
}
],
"$$hashKey": "object:620"
}
Basically I want to display all the operations from this object in a dropdown menu.
So I was thinking of having something like:
<div ng-repeat="operation in object.operations">
{{operation.name}}
</div>
Except the code above doesn't display anything on the screen, no errors in the console, nothing.
Any help would be much appreciated!
EDIT:
Javascript service:
app.controller('selectAll', ['$http', '$scope' , '$rootScope', function ($http, $scope, $rootScope) {
$scope.response;
$scope.operations;
$rootScope.$on("invokeSelectAll", function(){
$scope.invokeSelectAll();
});
$scope.invokeSelectAll = function(){
$scope.response = $http.post('/invoke/selectAll/', $rootScope.dataObj);
$scope.object = JSON.stringify($rootScope.object);
console.log(" object operation from selectAll " + $scope.object);
$scope.response.then(function(data) {
$scope.responses = data.data ? data.data : "Select Operation not supported on this bean";
});
}
}]);
Screenshot of dev console:
https://imgur.com/a/8WAAL

Use JSON.stringify() to create a JSON string from a JavaScript object.
Use JSON.parse() to parse a JSON string to a JavaScript object.
In your case, you need to use JSON.parse() because you get a JSON string from the server and want to parse it to a JavaScript object.
$scope.object = JSON.parse($rootScope.object);

you are using JSON.stringify which is used to change javascript object to string and store it as a string only.
You should Parse the data with JSON.parse(), and the data becomes a JavaScript object. and you can easily use that in ng-repeat.
Try it ,It will work fine

Iterate through nested Javascript Objects from API response

I've tried 100 different things, and spend days looking through Google and Stackoverflow, but I can't find a solution to this problem. Everything I call after the body of this API response returns undefined!
The response from Facebook SDK looks like this:
[
{
"body": "[
"data": [
{
"name": "Larry Syid Wright",
"administrator": false,
"id": "xxx"
}, {
"name": "Melissa Long Jackson",
"administrator": false,
"id": "xxx"
}, {
"name": "Charlotte Masson",
"administrator": false,
"id": "xxx"
}
],
"paging": {
"next": "url"
}
]"
},{
"body": "{
"data": [
{
"id": "xxx_xxx",
"message": "In honor of Halloween, how many of you have your own ghost stories? Who believes in ghosts and who doesn't?",
"type": "status",
"created_time": "2014-10-31T20:02:01+0000",
"updated_time": "2014-11-01T02:52:51+0000",
"likes": {
"data": [
{
"id": "xxx",
"name": "Joe HerBatman Owenby Jr."
}
],
}
"paging": {
"cursors":
{
"after": "xxx",
"before": "xxx"
}
}
}
},{
"id": "xxx_xxx",
"from": {
"id": "xxx",
"name": "Jessica Starling"
},
"message": "Watching the "Campaign" and I can't help but notice what a fantastic job they did (Will ferrell and all) with that North Carolina accent! Ya'll know we sound different than other southern states ;)",
"type": "status",
"created_time": "2014-11-01T02:36:21+0000",
"updated_time": "2014-11-01T02:36:21+0000",
"likes": {
"data": [
{
"id": "xxx",
"name": "Scott Williams"n
}
]
}
}
],
"paging": {
"previous": "xxx",
"next": "xxx"
}
}"
}
]
This response is from a batch call. If I call them separately, I can easily iterate through the responses, and get everything from them. When I call them in the batch though, I can't get past "body", and I need to use a batch call.
console.log(response[0].body); will return the object inside the body of the first part of the response, but console.log(response[0].body.data); returns undefined. I just don't get it. This should be simple but it's like there's a lock on the door and I don't have the right key.
I normally have no issue iterating through objects, so I don't need a generalized answer. I need help seeing whatever it is here that I don't see. Why does the console show undefined when I call anything after the body, and what do I need to be doing to get any of these values?

That JSON contains nested JSON. body seems to be a string. Use
var body = JSON.parse(response[0].body);

The values from the body are just strings.which are embedded as json.So firstly you would need to parse them using JSON.parse.
The code would be like
var body = JSON.parse(response[0].body);