couchdb with multiple linked documents in one doc - javascript

As a complete newbie to the concept of NoSQL it is giving me a hard time figuring out how to achieve something like a join with multiple linked documents.
I got a Data-Structure for a Congress in a CouchDB which is replicated to a PouchDB on a Client like:
Sessions:
"_id": "1",
"type": "session",
"Title": "Title of Session",
}
Persons:
"_id": "2",
"type": "Person",
"mail": "mail#mail.com",
"Names": {
"FirstName": "Horst",
"LastName": "Muller"
}
"_id": "3",
"type": "Person",
"mail": "mail2#mail.com",
"Names": {
"FirstName": "Mark",
"LastName": "Webber"
}
Talks:
"_id": "4",
"type": "presentation",
"Sessions": [
"1"
],
"PresentationTitle": "Title of Talk",
"files": [
{
"Filename": "presentationfile.pptx",
}
],
"Speakers": [
"2",
"3"
]
What I tried to achieve was an output where the documents are retrieved as if putting the doc of the linked document in the result like
"_id": "4",
"type": "presentation",
"Sessions": [
"Title of Session"
],
"PresentationTitle": "Title of Talk",
"files": [
{
"Filename": "presentationfile.pptx",
}
],
"Speakers": [
{
"FirstName": "Mark",
"LastName": "Webber"
},
{
"FirstName": "Horst",
"LastName": "Muller"
}
]
or something similar without denormalizing the data. I tried with map/reduce, Mango and pouchdb-find, but without luck.
Is that even possible in a NoSQL-World?

There is actually a really neat feature in CouchDB called Linked Documents which allows you to effectively do joins.
The gist is that if you emit an object with a _id property as a value, then the behavior of include_docs=true will fetch the linked document instead of the source document. (the docs I linked to above have a detailed example of this)

Related

Google Sheets not receiving json data properly from Woocommerce Webhook

I hope you guys are having a wonderful day.
I have set up a webhook in my woocommerce that sends JSON data to Google sheets. The webhook has been working great for months now, just today, I am having some trouble with it. I have tracked the issue to be in google sheets receiving the JSON data, but I don't know why this is happening.
Let me explain.
https://docs.google.com/spreadsheets/d/18G-yVDjYeccl6kznpZgSuRTysRMAu57pwY2oGf6-KWI/edit?usp=sharing
This is the google sheet, when it gets Woocommerce JSON data, it populates a new row.
The problem
Sometimes google sheets doesn't populate the row upon receiving a new order. The problem doesn't lie with woocommerce, because I have checked woocommerce with reqbin and the webhook fires with every order.
Furthermore, when I send requests from reqbin.com to my sheet, the sheet performs the operation successfully 5-6 out of 10 times. Other times it shows an error.
The Error
The error is due to google sheets not being able to parse JSON data, because the JSON data it receives 5 out of 10 times is not proper JSON data. Other 5 times, it is just as it should be. I have put a catch statement if the sheet is unable to parse JSON. Instead of appending new row with the parsed data, it appends the raw received data to the sheet.
It is clear now that there is some issue with google sheets handling that JSON data because when the same data is sent from reqbin.com to webhook.site, it is perfectly as it should be 10/10 times.
How to reproduce the issue
Open this google sheet. https://docs.google.com/spreadsheets/d/18G-yVDjYeccl6kznpZgSuRTysRMAu57pwY2oGf6-KWI/edit?usp=sharing
Open reqbin.com and webhook.site, and send the following JSON from reqbin.com to webhook.site 10 times to see if any kind of error occurs.
{ "id": 47222, "parent_id": 0, "status": "processing", "currency": "PKR", "version": "5.1.0","prices_include_tax": false, "date_created": "2021-06-10T01:23:46", "date_modified": "2021-06-10T01:23:46", "discount_total": "0", "discount_tax": "0", "shipping_total": "150", "shipping_tax": "0", "cart_tax": "0", "total": "1850", "total_tax": "0", "customer_id": 0, "order_key": "wc_order_7gIuR7px6MX9C", "billing": { "first_name": "Name", "last_name": "", "company": "", "address_1": "Address", "address_2": "", "city": "City", "state": "", "postcode": "", "country": "PK", "email": "email#email.com", "phone": "1234" }, "shipping": { "first_name": "Name", "last_name": "", "company": "", "address_1": "Address", "address_2": "", "city": "City", "state": "", "postcode": "", "country": "Country" }, "payment_method": "cod", "payment_method_title": "Cash on delivery", "transaction_id": "", "customer_ip_address": "8.8.8.8", "customer_user_agent": "Mozilla/5.0 (Linux; Android 11; M2102J20SG) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.88 Mobile Safari/537.36", "created_via": "checkout", "customer_note": "", "date_completed": null, "date_paid": null, "cart_hash": "64d834c72eecc8e32b9d83fd67d10d9c", "number": "47222", "meta_data": [ { "id": 869388, "key": "_shipping_calculator", "value": "" }, { "id": 869389, "key": "is_vat_exempt", "value": "no" }, { "id": 869391, "key": "_wfacp_report_data", "value": { "wfacp_total": "0.00" } }, { "id": 869392, "key": "_woofunnel_cid", "value": "4" }, { "id": 869393, "key": "_wfacp_post_id", "value": "24852" }, { "id": 869394, "key": "_wfacp_source", "value": "https://website.com/checkouts/checkout-page/" }, { "id": 869395, "key": "_wfacp_timezone", "value": "Asia/Karachi" }, { "id": 869396, "key": "order_comments", "value": "" }, { "id": 869412, "key": "_new_order_email_sent", "value": "true" }, { "id": 869424, "key": "_woofunnel_custid", "value": "4" }, { "id": 869425, "key": "_pys_purchase_event_fired", "value": "1" }, { "id": 869426, "key": "_wfob_stats_ids", "value": [] }, { "id": 869427, "key": "_wfocu_thankyou_visited", "value": "yes" } ], "line_items": [ { "id": 35114, "name": "MTECH Ultra Resilient Knife", "product_id": 11074, "variation_id": 0, "quantity": 1, "tax_class": "", "subtotal": "1700", "subtotal_tax": "0", "total": "1700", "total_tax": "0", "taxes": [], "meta_data": [], "sku": "", "price": 1700, "parent_name": null } ], "tax_lines": [], "shipping_lines": [ { "id": 35115, "method_title": "Fast Shipping (2-4 Days)", "method_id": "flat_rate", "instance_id": "1", "total": "150", "total_tax": "0", "taxes": [], "meta_data": [ { "id": 275053, "key": "Items", "value": "MTECH Ultra Resilient Knife × 1", "display_key": "Items", "display_value": "MTECH Ultra Resilient Knife × 1" } ] } ], "fee_lines": [], "coupon_lines": [], "refunds": [], "date_created_gmt": "2021-06-09T20:23:46", "date_modified_gmt":"2021-06-09T20:23:46", "date_completed_gmt": null, "date_paid_gmt": null, "currency_symbol": "₨","_links": { "self": [ { "href": "https://website.com/wp-json/wc/v3/orders/47222" } ],"collection": [ { "href": "https://website.com/wp-json/wc/v3/orders" } ] } }
Now send the same data to the following google sheet to see if it appends the row correctly each time.
https://script.google.com/macros/s/AKfycbxupm9bje86F4PQQkyys_LWtXs_kj279R0ipgnZ-cLd7aiEADf1AN_prhk28vOPW9JsRQ/exec
How do I solve the issue? Please let me know if you need any more information. Thanks.
Edit:
Instead of getting a full JSON body like mentioned above, the google sheets seems to be getting the following JSON.
{contextPath=, queryString=, parameter={}, postData=FileUpload, parameters={}, contentLength=3981.0}
I would like to know why the google sheets default parameter (e) contains this instead of a full JSON body sent to it.
Edit # 2
I would like to know why the google sheets default parameter (e) contains this instead of a full JSON body sent to it.
This is because (e) has a body which will always contain those parameters. The error is due to Google Sheets receiving an empty JSON body. I am still unable to understand why this happens. When I send the same JSON to API testing sites, they always receive full JSON body. Google sheets, in some cases, does not. Why is that?
I managed to solve the issue with some trial and error. For anyone facing the same issue in the future, here is what worked for me.
I was using e.postData.contents to get the JSON body but this seems to have stopped working, which was causing the JSON body to be empty. I tried e.postData.getDataAsString(); which seems to be working just fine and the issue has been resolved.

MongoDB aggregate function is not returning the value of collection joined using JavaScript

I needed assistance in order to work out why the aggregate function is not responding the way I'd expect it to respond. This is a RESTful API service I've designed in which I am trying to connect collections with each other. Please note the following:
Collection: Season
{
"_id": {
"$oid": "5c0fc60bfb6fc04dd6ea4e9a"
},
"Season": "1",
"TotalEpisode": "15",
"Name": null,
"Description": "First season with no name for this drama",
"PlayID": "5c0fc4aafb6fc04dd6ea4d81"
}
Collection: Play
{
"_id": {
"$oid": "5c0fc4aafb6fc04dd6ea4d81"
},
"Name": "It was the first time",
"Description": "One of the best action heros in the entertainment industry until this day",
"ReleaseDate": "24/12/2010",
"EndingDate": "12/08/2012",
"Category": "Drama"
}
My implemented code in JavaScript
function getTestLookUp(db, collectionName, response, secondCollectionName){
console.log('First collection name: ' + collectionName + '\n' + 'Second collection name: ' + secondCollectionName);
db.collection(collectionName).aggregate([
{
$lookup:
{
from: secondCollectionName,
localField: 'PlayID',
foreignField: '_id',
as: 'requestedDetails'
}
}
]).toArray((err, res) => {
if(err){
console.log(err);
} else {
console.log(res);
response.status(200).json({
'Items': res
});
}
});
}
The response
{
"Items": [
{
"_id": "5c0fc60bfb6fc04dd6ea4e9a",
"Season": "1",
"TotalEpisode": "15",
"Name": null,
"Description": "First season with no name for this drama",
"PlayID": "5c0fc4aafb6fc04dd6ea4d81",
"requestedDetails": []
}
]
}
The things I've checked so far: the collection names are accurate, the ID is also accurate as I can search it up on the MLabs search feature. I don't understand as to why this is returning a empty 'requestedDetails' as I hoped it would return the item from the Play collection.
In addition to this, I would also appreciate if someone can point out how I can join multiple collections instead of 2.
I welcome any questions regarding this problem.
While still researching for this issue, I accidentally came across a another problem in which someone wrote a comment stating that "you might be comparing a String with ObjectID". This was the cause for this error as I obtain a String variable in return from the database and I am comparing the String variable with the _id which is expecting to see a ObjectID variable to complete the query. Therefore, meaning that my query/lookup is never matching these two variables.
The only way tackle this issue is to do a conversion (string to ObjectID) and then compare the values. However, since I'm using the version of ^3.1.10 of MongoDB, this functionality is not possible. Will need to update the version to 4.0 to be able to implement this functionality.
In order to rectify this issue, I managed to surround the foreign ID within $iod tags.
Before
{
"_id": {
"$oid": "5c0fc60bfb6fc04dd6ea4e9a"
},
"Season": "1",
"TotalEpisode": "15",
"Name": null,
"Description": "First season with no name for this drama",
"PlayID": "5c0fc4aafb6fc04dd6ea4d81"
}
After
{
"_id": {
"$oid": "5c0fc60bfb6fc04dd6ea4e9a"
},
"Season": "1",
"TotalEpisode": "15",
"Name": null,
"Description": "First season with no name for this drama",
"PlayID": {
"$oid": "5c0fc4aafb6fc04dd6ea4d81"
}
}
Response
{
"Items": [
{
"_id": "5c0fc60bfb6fc04dd6ea4e9a",
"Season": "1",
"TotalEpisode": "15",
"Name": null,
"Description": "First season with no name for this drama",
"PlayID": "5c0fc4aafb6fc04dd6ea4d81",
"Details": [
{
"_id": "5c0fc4aafb6fc04dd6ea4d81",
"Name": "It was the first time",
"Description": "One of the best action heros in the entertainment industry until this day",
"ReleaseDate": "24/12/2010",
"EndingDate": "12/08/2012",
"Category": "Drama"
}
]
}
]
}

Ember Difference between Restadapter vs Jsonapiadapter

Ember uses Restadapter & Jsonapiadapter for the adapters.
What are the exact differences between the 2 in terms of data formats for request/response ?
Any other things we need to ensure when using any of these 2.
The JSONAPIAdapter conforms to the JSONApi spec
Use RESTAdapter when you have an JSON API that follows a REST endpoint with pluralized object names and has a root node using the name of the object being returned.
Examples below:
Example JSONAPI spec object:
{
"data": [{
"type": "articles",
"id": "1",
"attributes": {
"title": "JSON API paints my bikeshed!"
},
"relationships": {
"author": {
"links": {
"self": "http://example.com/articles/1/relationships/author",
"related": "http://example.com/articles/1/author"
},
"data": { "type": "people", "id": "7" }
}
},
}],
"included": [{
"type": "people",
"id": "7",
"attributes": {
"name": "Dave",
"twitter": "kiwiupover"
}
}]
}
Example Rest json api object:
{
"posts": {
"id": 5,
"title": "An API that gets bikeshed for months ",
"author": "kiwiupover",
"comments": [1]
},
"comments": [{
"id": 1,
"name": "Dave",
}]
}
Ember Data provides straightforward methods for adapting your DS.adapter to your specific JSON API shape.
There is a third adapter from which the previously mentioned adapters are extended from.

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);

PouchDb - remove object inside document

I'm an Italian PouchDb and AngularJS Developer.
My json document is:
{
"_id": "6",
"_rev": "3-f7283d7683cd6fb15753f494aad1d49f",
"name": "Ivrea",
"owners": [
{
"owner_id": 1,
"name": "asdas",
"address": "asdas",
"gender": "Uomo",
"type": "Assente",
"notes": [
]
},
{
"owner_id": 2,
"name": "balbaba",
"address": "blabla",
"gender": "Uomo",
"type": "Assente",
"notes": [
]
}
]
}
and after an ng-click action, I will delete owner_id: 2 object inside _id: 6 document. In API reference I found only document delete action, but not how to delete object inside document.
Thanks for your reply!!
Alessandro
You just need to put() the main document back in the database after you remove an object from it. :)
db.get('foo').then(function (doc) {
delete doc.whatever;
return db.put(doc);
}).catch(function (err) { /* ... */ });

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