Error with chart: Cannot read property 'reference' of undefined

[jblok]

Expected behaviour

I created a Repartition chart that for one of my models. The "Group By" is set to a field that, in my model is a ref to another model. The UI sends this in the body of the request

{
  aggregate:"Count"
  collection:"Recording"
  filters:[]
  group_by_field:"organisation:name"
  query:null
  time_range:null
  timezone:"+01:00"
  type:"Pie"
}

## Actual behaviour

I get an error response back from the API "Cannot read property 'reference' of undefined" with this stack

If I curl the request the UI makes, but change the body so that the field group_by_field equals organisation rather than organisation:name, it works! So not sure if the UI should change or the API.

Failure Logs

TODO: Please include any relevant log snippets, if necessary.

TypeError: Cannot read property 'reference' of undefined
    at getReference (/node_modules/forest-express-mongoose/services/pie-stat-getter.js:17:18)
    at PieStatGetter.perform (/node_modules/forest-express-mongoose/services/pie-stat-getter.js:35:32)
    at get (/node_modules/forest-express/dist/routes/stats.js:20:79)
    at Layer.handle [as handle_request] (/node_modules/forest-express/node_modules/express/lib/router/layer.js:95:5)
...

TODO: Please provide any relevant information about your setup.

• Package Version:2.9.0
• Express Version: 4.15.2
• Mongoose Version: 5.1.2
• MongoDB Version: 3.6

[jblok]

Hi, any update on tis bug?

[ItsMrAkhil]

I'm also facing the same issue. Maybe it's not related to versions of packages. It's been a year by now from the issue opened. :(