Develop Reference

How to use couchdb _find request with a number of selectors?

I'm trying to get documents for different selectors in one _find request. How is this possible to implement?
"selector": {
"$or": [
{"author": "007177e3-6719-4237-8903-fb397977889f"},
{"writers": {"$regex": "007177e3-6719-4237-8903-fb397977889f"}},
{"readers": {"$regex": "007177e3-6719-4237-8903-fb397977889f"}}
]
},
"use_index": "_design/5e0c1e3422759aefaa2aa14ed5a8323ba33f06e3",
"sort": [{"title": "asc"}],
"fields": ["_id", "_rev", "id", "title","author", "writers", "readers"]
Index used in request
{
"ddoc": "_design/5e0c1e3422759aefaa2aa14ed5a8323ba33f06e3",
"name": "title-json-index",
"type": "json",
"partitioned": false,
"def": {
"fields": [
{
"title": "asc"
}
]
}
},
In the response I only get document there author is "007177e3-6719-4237-8903-fb397977889f". Other selectors (writers, readers) are ignored.
Doc sample:
{
"_id": "scheme-44b2b6f6-9b42-40b5-86c3-6135cde2f99f",
"_rev": "6-bcbd906fd316e098fdd45eda3c11008f",
"id": "scheme-44b2b6f6-9b42-40b5-86c3-6135cde2f99f",
"title": "New scheme 25.02.2022",
"scope": "meta",
"created": "2022-02-25T05:43:45.546Z",
"modified": "2022-03-04T04:09:25.659Z",
"sharedUI": {
"schemeSharingLock": false,
"schemeRenameLock": false,
"schemeDeleteLock": false
},
"author": "007177e3-6719-4237-8903-fb397977889f",
"writers": "fff,007177e3-6719-4237-8903-fb397977889f,ccc",
"readers": "yyyy",
}
CouchDB version: 3.2.0

Javascript object nested filtering

I have an object parsed from JSON output.
I have to use only pure JS without any 3rd part libs. Can somebody suggest a working solution to filter a specific nested object by one of its key's value. In this sample I have a few "Fields" objects which contains also nested objects.
So is there a way to filter the whole nested object inside Fields using VName value as a filter criteria? For example use "VName": "oc_data" to filter the whole object inside Fields oc_data belongs to
[{
"Id": "0050560107dd",
"Name": "Demo Range",
"AllMup": false,
"Lines": [{
"Id": "0050560107dd",
"AllMup": false,
"Fields": [{
"Id": "0050560107dd",
"Name": "Some value here",
"VName": "oc_data",
"IsRequired": false,
"Format": {
"Type": "Dictionary",
"Dictionary": {
"Name": "Main stuff",
"SysName": "da3a45de77d1",
"ValuesUrl": "https://mysityurl.com",
"Id": "0050560107dd",
},
"CalForm": []
}
}]
},
{
"Id": "0050560107dd",
"AllMup": false,
"Fields": [{
"Id": "0050560107dd",
"Name": "Some value again",
"VName": "task_stat",
"IsRequired": false,
"Format": {
"Type": "Dictionary",
"Dictionary": {
"Name": "Task stuff",
"SysName": "Tasks.TaskState",
"ValuesUrl": "https://mysecondurl.com",
"Id": "ac1f6b17f99d",
},
"CalForm": []
}
}]
}
]
},
{
"Id": "0050560107dd",
"Name": "Demo Range",
"AllMup": false,
"Lines": [{
"Id": "0050560107dd",
"AllMup": false,
"Fields": [{
"Id": "0050560107dd",
"Name": "Category",
"IsRequired": false,
"Format": {
"Type": "Dictionary",
"Dictionary": {
"Name": "Some category",
"SysName": "LitigationCategory",
"ValuesUrl": "https://myempty.com",
"Id": "902b343a9588",
},
"CalForm": []
}
}]
}]
}
]

How to deep merge objects in react js

{"activities": [
{
"actor": {
"id": 409,
"avatar": "",
"first_name": "Sakthi",
"last_name": "Vel",
"headline": null,
"is_online": false,
},
"foreign_id": "post.UsPost:253",
"id": "ed50e218-f3e8-11e8-8080-800132d8e9c0",
"object": {
"id": 253,
"comments": 0,
"likes": 0,
"files": [
{
"id": 112,
"file": "",
"content_type": "video/mp4",
"file_type": "video",
"created_at": "2018-11-29T15:10:38.524836Z"
}
],
"post_type": "post",
"is_bookmarked": false,
"is_liked": false,
"link": "/post/api/v1/253/",
"target": "post.UsPost:253",
"foreign_id": "post.UsPost:253",
"actor": {
"id": 409,
"avatar": "",
"first_name": "Sakthi",
"last_name": "Vel",
"headline": null,
"is_online": false,
},
"text": "#Multiple video (.mp4) test. Far far away, behind the word mountains, far from the countries Vokalia and Consonantia, there live the blind texts. Separated they live in Bookmarksgrove right at the coast of the Semantics, a large language ocean.",
"skills": [
"VFX"
],
"created_at": "2018-11-29T15:10:37.426332Z",
"is_link": true,
"view_count": 0,
"created_by": 409
},
"origin": "user:409",
"target": "",
"time": "2018-11-29T15:10:37.426332",
"type": "post",
"verb": "posted"
}
{
"activities": [
{
"actor": {
"id": 64,
"last_name": "",
"headline": "Learning is my Passion",
"is_online": false,
"username": "Uchenna1"
},
"foreign_id": "post.UsPost:183",
"id": "447f6710-eb08-11e8-8080-8001369e78cd",
"object": {
"id": 183,
"comments": 1,
"likes": 1,
"files": [
{
"id": 87,
"content_type": "image/jpg",
"file_type": "image",
"created_at": "2018-11-18T08:02:18.759309Z"
}
],
"post_type": "post",
"is_bookmarked": false,
"is_liked": false,
"link": "/post/api/v1/183/",
"target": "post.UsPost:183",
"foreign_id": "post.UsPost:183",
"actor": {
"id": 64,
"first_name": "Uchenna",
"last_name": "",
"headline": "Learning is my Passion",
"is_online": false,
"username": "Uchenna1"
},
"text": "This is codigo",
"skills": [
"Javascript"
],
"created_at": "2018-11-18T08:02:17.626600Z",
"is_link": true,
"view_count": 10,
"created_by": 64
},
"origin": "user:64",
"target": "",
"time": "2018-11-18T08:02:17.626600",
"type": "post",
"verb": "posted"
}
],
"activity_count": 1,
"actor_count": 1,
"created_at": "2018-11-18T08:02:18.647108",
"group": "posted_2018-11-18",
"id": "451b1eab-eb08-11e8-8080-80007915e2b6.posted_2018-11-18",
"is_read": false,
"is_seen": true,
"updated_at": "2018-11-18T08:02:18.647108",
"verb": "posted"
}
I am facing issue in merging two object. Below is the snap of two object and result.
Here in the above image I wan to merge Old Data and new Data
but after merging getting wrong output i.e new updated data.
I am using command to do it.
let newData = { ...a , ...b }
console.log('new updated data: ',newData)
also I am performing this operation in redux action before dispatching.
Here {"activities": [....],....} is one object and I want to merge with the below one.

Can you clarify do your objects have a child that are objects or arrays and if you mean it's not merging those things or is it not merging anything at all?
for e.g:
let oldData = {
key: value,
key1: { childkey1: value1 }
}
if you have something like this and the problem is like I explained. It's because javascript doesn't do deep merge. it does a shallow merge.
Easiest option would be use a library like lodash that has a function for deep merge.

How to insert values of matching JSON Keys between 2 JSON files

I have 2 JSON files:
A Template JSON
A JSON output (from awscli)
The template is a small JSON file as below:
{
"DryRun": true,
"ImageId": "",
"KeyName": "",
"SecurityGroups": [
""
],
"InstanceType": "",
"Monitoring": {
"Enabled": false
},
"SubnetId": "",
"DisableApiTermination": true,
"PrivateIpAddress": "",
"IamInstanceProfile": {
"Arn": "",
"Name": ""
},
"EbsOptimized": true,
"TagSpecifications": [{
"ResourceType": "",
"Tags": [{
"Key": "",
"Value": ""
}]
}]
}
The original file is the output of aws ec2 describe-instances:
{
"Reservations": [{
"OwnerId": "123456789012",
"ReservationId": "r-12345678",
"Groups": [],
"Instances": [{
"Monitoring": {
"State": "disabled"
},
"PublicDnsName": "ec2-12-34-56-78.ap-southeast-1.compute.amazonaws.com",
"RootDeviceType": "ebs",
"State": {
"Code": 16,
"Name": "running"
},
"EbsOptimized": false,
"LaunchTime": "2016-02-09T03:06:21.000Z",
"PublicIpAddress": "12.34.56.78",
"PrivateIpAddress": "172.31.1.2",
"ProductCodes": [],
"VpcId": "vpc-1a2b3c4d",
"StateTransitionReason": "",
"InstanceId": "i-abcd1234",
"ImageId": "ami-1234abcd",
"PrivateDnsName": "ip-172-31-1-2.ap-southeast-1.compute.internal",
"KeyName": "tempKey",
"SecurityGroups": [{
"GroupName": "somegroup1",
"GroupId": "sg-ZZZZZ"
},
{
"GroupName": "somegroup2",
"GroupId": "sg-YYYYY"
}
],
"ClientToken": "NutKc123456789012",
"SubnetId": "subnet-00001234",
"InstanceType": "t2.medium",
"NetworkInterfaces": [{
"Status": "in-use",
"MacAddress": "02:AA:BB:CC:DD:EE",
"SourceDestCheck": true,
"VpcId": "vpc-1a2b3c4d",
"Description": "",
"Association": {
"PublicIp": "12.34.56.78",
"PublicDnsName": "ec2-12-34-56-78.ap-southeast-1.compute.amazonaws.com",
"IpOwnerId": "123456789012"
},
"NetworkInterfaceId": "eni-XXXXXXXX",
"PrivateIpAddresses": [{
"PrivateDnsName": "ip-172-31-1-2.ap-southeast-1.compute.internal",
"Association": {
"PublicIp": "1.2.3.4",
"PublicDnsName": "ec2-12-34-56-78.ap-southeast-1.compute.amazonaws.com",
"IpOwnerId": "123456789012"
},
"Primary": true,
"PrivateIpAddress": "172.31.1.2"
}],
"PrivateDnsName": "ip-172-31-1-2.ap-southeast-1.compute.internal",
"Attachment": {
"Status": "attached",
"DeviceIndex": 0,
"DeleteOnTermination": true,
"AttachmentId": "eni-attach-XXXXXXXX",
"AttachTime": "2016-01-13T08:33:37.000Z"
},
"Groups": [{
"GroupName": "somegroup1",
"GroupId": "sg-ZZZZZZ"
},
{
"GroupName": "somegroup2",
"GroupId": "sg-YYYYYY"
}
],
"Ipv6Addresses": [],
"SubnetId": "subnet-00001234",
"OwnerId": "123456789012",
"PrivateIpAddress": "172.31.1.2"
}],
"SourceDestCheck": true,
"Placement": {
"Tenancy": "default",
"GroupName": "",
"AvailabilityZone": "ap-southeast-1b"
},
"Hypervisor": "xen",
"BlockDeviceMappings": [{
"DeviceName": "/dev/xvda",
"Ebs": {
"Status": "attached",
"DeleteOnTermination": true,
"VolumeId": "vol-33221100",
"AttachTime": "2016-01-13T08:33:39.000Z"
}
}],
"Architecture": "x86_64",
"StateReason": {
"Message": "Client.UserInitiatedShutdown: User initiated shutdown",
"Code": "Client.UserInitiatedShutdown"
},
"RootDeviceName": "/dev/xvda",
"VirtualizationType": "hvm",
"Tags": [{
"Value": "SomeValue",
"Key": "SomeKey"
},
{
"Value": "AnotherValue",
"Key": "Name"
}
],
"AmiLaunchIndex": 0
}]
}]
}
I want to copy the values of the Keys in the original JSON file to the template file.
For example, KeyName is a common key between the 2 JSON files. The corresponding value tempKey is replaced in the template file.
The main use case of this is: I am trying to migrate a number of servers on AWS from 1 region to another. This is a part of migration process which will remove tons of manual clicking and configuration on AWS Console.
Note: I use BASH command line.

There's a way to do this with jq but it doesn't take a JSON template as input.
You'll have to modify it to become a query. This isn't the actual query you need, but something to get you started:
cat temp.json | jq '.Reservations[].Instances[] | { DryRun, ImageId, KeyName, SecurityGroups, InstanceType, Monitoring }'
Where temp.json is your output above that I placed into a file. For regular commands, just do something like aws ec2 describe-instances | jq ...
The output that gives me (keep in mind the restricted set I queried for) is:
{
"DryRun": null,
"ImageId": "ami-1234abcd",
"KeyName": "tempKey",
"SecurityGroups": [
{
"GroupName": "somegroup1",
"GroupId": "sg-ZZZZZ"
},
{
"GroupName": "somegroup2",
"GroupId": "sg-YYYYY"
}
],
"InstanceType": "t2.medium",
"Monitoring": {
"State": "disabled"
}
}
Hope this helps.

Display data from common topic in Freebase using jQuery

I am playing around with Freebase and have had some decent success, but have hit a wall. My MQL is below. I do not have any issue displaying name,latin name, etc, which I created in my base. I do not know how to display the article which is in a different base.
Here is the jQuery I am using to display data:
$('<div>',{text:this.name}).appendTo(document.body);
Thank you very much,
Todd
query : [
{
"/common/topic/article": {
"guid": null,
"limit": 1,
"optional": true
},
"/common/topic/image": {
"id": null,
"limit": 1,
"optional": true
},
"id": null,
"larval_food": [
{
"index": null,
"lang": "/lang/en",
"limit": 6,
"optional": true,
"sort": "index",
"type": "/type/text",
"value": null
}
],
"latin_name": [
{
"index": null,
"lang": "/lang/en",
"limit": 6,
"optional": true,
"sort": "index",
"type": "/type/text",
"value": null
}
],
"limit": 60,
"name": null,
"s0:type": [
{
"id": "/base/butterflies/butterfly",
"link": [
{
"timestamp": [
{
"optional": true,
"type": "/type/datetime",
"value": null
}
],
"type": "/type/link"
}
],
"type": "/type/type"
}
],
"sort": "-s0:type.link.timestamp.value",
"type": "/base/butterflies/butterfly"
}
]

Change
"type": "/base/butterflies/butterfly"
to the type of the thing you actually want to include.
As an aside, that looks like a query which was exported from one of the Freebase.com view pages. It can be greatly simplified and some of the stuff, like the sorting, you probably want removed altogether.
Here's your query simplied (I also recommend using the standard scientific name property instead of inventing your own "Latin name" property):
[{
"type": "/base/butterflies/butterfly",
"mid": null,
"name": null,
"/common/topic/article": [],
"/common/topic/image": ["mid":null,"optional":true],
"larval_food": [],
"latin_name": [],
"/biology/organism_classification/scientific_name" : [],
}]
Here's a version of the query which shows all organism classifications (species in this case) which have the tribe Danaini two levels up. It optionally decorates it with data (larval_food) from your base, if it exists:
[{
"type": "/biology/organism_classification",
"higher_classification": [{
"/biology/organism_classification/higher_classification": "Danaini"
}],
"mid": null,
"name": null,
"scientific_name": [],
"/common/topic/article": [],
"/common/topic/image": [{
"mid": null,
"optional": true
}],
"/base/butterflies/butterfly/larval_food": [],
}]
You can try it here: http://tinyurl.com/6wht7lx