salvadr / json-aggregate Goto Github PK
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License: MIT License
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json-aggregate's Issues
Avg operator cache shouldn't persist across runs
Feature Request: Ability to use custom formulas in addition to standard operators like sum, avg, etc.
For eg., lets say three keys in the object a,b,c where c = a/b. After grouping the array of objects, final c value must by aggregated value of a / aggregated value of b. Is it possible? Btw, nice work.
Why didn't anyone find so cool a thing here?
Only 9 stars here？
Support For $project?
Is there any support for $project operator?
Avg operator should support multiple fields
@salvadr BTW, I've forked this project since I'm finding more issues and I need to fix them to use it my project. I wouldn't mind contributing to this project if you want to invite me as a contributor.
Support functions wherever string paths are supported
Feature request:
[{ company: "a", employeeCount: 45, category: 1, product: "Product A", price: 120 },
{ company: "a", employeeCount: 45, category: 1, product: "Product B", price: 80 },
{ company: "a", employeeCount: 45, category: 2, product: "Product C", price: 105 },
{ company: "a", employeeCount: 45, category: 2, product: "Product D", price: 95 },
{ company: "b", employeeCount: 30, category: 1, product: "Product A", price: 40 },
{ company: "b", employeeCount: 30, category: 1, product: "Product B", price: 100 },
{ company: "b", employeeCount: 30, category: 2, product: "Product C", price: 60 },
{ company: "b", employeeCount: 30, category: 2, product: "Product D", price: 130 }] collection.group({
id: (c) => c.company.toUpperCase(),
lowestPrice: { $min: (c) => c.price * 2}
})
.exec() output
[{ id: 'A', lowestPrice: 160 },
{ id: 'B', lowestPrice: 80 }] GroupId should support number based id
GROUP method with JSON Numbers
Thanks for you project!
I was wondering if you had any idea on how to make it possible to use the "group" method with Numbers? I've attached an example here so the goal would be to perform SUM based on the "actor_id" attribute. Here, the result would be 3.
groupBysum() {
const jsonAggregate = require('json-aggregate')
const arr = [
{
"actor_id": 1,
"film_id": 1,
"last_update": "2006-02-15 05:05:03"
}, {
"actor_id": 1,
"film_id": 23,
"last_update": "2006-02-15 05:05:03"
}, {
"actor_id": 1,
"film_id": 25,
"last_update": "2006-02-15 05:05:03"
} ]
const collection = jsonAggregate.create(JSON.stringify(arr))
collection.group({ id: 'actor_id', count: { $sum: 1 }})
console.log('Result=',collection);
}
This gives the following error: TypeError: Cannot read property 'data' of undefined. It works fine with "last_update" instead of "actor_id".
sum operator only works on integers?
json-aggregate/lib/operators.js
Line 41 in 972891c
nested oject unwind or group
i have below object...
var myJsonData=
[
{ company: "e", employeeCount: 45,
scoreRange:[
{value:110,exception:[{ifCounter:10,shouldCounter:3},{ifCounter:10,shouldCounter:3}]},
{value:50,exception:[{ifCounter:10,shouldCounter:1},{ifCounter:10,shouldCounter:4}]},
{value:10,exception:[{ifCounter:10,shouldCounter:1},{ifCounter:10,shouldCounter:7}]},
{value:10,exception:[{ifCounter:10,shouldCounter:3},{ifCounter:10,shouldCounter:8}]},
] },
{ company: "a", employeeCount: 45, scoreRange:[
{value:110,exception:[{ifCounter:10,shouldCounter:3},{ifCounter:10,shouldCounter:2}]},
{value:50,exception:[{ifCounter:10,shouldCounter:1},{ifCounter:10,shouldCounter:1}]},
{value:10,exception:[{ifCounter:10,shouldCounter:1},{ifCounter:10,shouldCounter:1}]},
{value:10,exception:[{ifCounter:10,shouldCounter:3},{ifCounter:10,shouldCounter:2}]},
] },
{ company: "b", employeeCount: 45, scoreRange:[
{value:110,exception:[{ifCounter:10,shouldCounter:3},{ifCounter:10,shouldCounter:2}]},
{value:50,exception:[{ifCounter:10,shouldCounter:1},{ifCounter:10,shouldCounter:1}]},
{value:10,exception:[{ifCounter:10,shouldCounter:1},{ifCounter:10,shouldCounter:1}]},
{value:10,exception:[{ifCounter:10,shouldCounter:3},{ifCounter:10,shouldCounter:2}]},
] },
{ company: "c", employeeCount: 45, scoreRange:[
{value:110,exception:[{ifCounter:10,shouldCounter:3},{ifCounter:10,shouldCounter:2}]},
{value:50,exception:[{ifCounter:10,shouldCounter:1},{ifCounter:10,shouldCounter:1}]},
{value:10,exception:[{ifCounter:10,shouldCounter:1},{ifCounter:10,shouldCounter:1}]},
{value:10,exception:[{ifCounter:10,shouldCounter:3},{ifCounter:10,shouldCounter:2}]},
] },
];i want to unwind by exception array...
collection
.unwind("scoreRange")
.unwind("scoreRange.exception")
.exec();
but it doesnt work
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