defaultValue: null - Cannot read property 'parent' of undefined

[damsorian]

Description
In the version 5.10.1 when the defaultValue is null the ngx-formly-core.js breaks

I think the problem is this logic changed related to the defaultValue v5.10.0...v5.10.1#diff-9b2d3151ef7629725cd42759a64296adR99

handle-error.service.ts:51 TypeError: Cannot read property 'parent' of undefined
    at assignFieldValue (ngx-formly-core.js:92)
    at CoreExtension.initFieldOptions (ngx-formly-core.js:3299)
    at CoreExtension.onPopulate (ngx-formly-core.js:3199)
    at ngx-formly-core.js:719
    at Array.forEach (<anonymous>)
    at FormlyFormBuilder._buildForm (ngx-formly-core.js:715)
    at ngx-formly-core.js:725
    at Array.forEach (<anonymous>)
    at FormlyFormBuilder._buildForm (ngx-formly-core.js:721)
    at ngx-formly-core.js:725

Minimal Reproduction

Only set a defaultValue to null in any component

I don't know why I can't reproduce the issue on stackblitz but in local with a minimal stack, it throws that error and breaks the app

Your Environment

• Angular version: 10.1.0
• Formly version: 5.10.1

[aitboudad]

could you please provide a reproduction example, thanks!

[damsorian]

@aitboudad I don't know why I can't reproduce the issue on stackblitz but in local with a minimal stack, it throws the error Cannot read property 'parent' of undefined

I think the problem is this logic changed related to the defaultValue v5.10.0...v5.10.1#diff-9b2d3151ef7629725cd42759a64296adR99

[aitboudad]

This issue has been fixed and released as part of v5.10.2 release.

Please let us know, in case you are still encountering a similar issue/problem.
Thank you!

[damsorian]

gracias!!

[miko-engr]

@aitboudad - I am experiencing similar issue on my end with data-table integration. Just added a screenshot for reference.
Please let me know if you have any solution for it. Thanks!

[aitboudad]

@miko-engr I think there is a bug somewhere but I need a reproduction scenario/example 🙏 in order to fix it also make sure you're using the latest version of Formly.

[bandman0226]

I am getting the same issue. I am trying to use the latest next version with primeng. It happens when clicking the datepicker.
https://stackblitz.com/edit/ngx-formly-flex-layout-6ksvaw?file=src%2Fapp%2Fapp.component.ts

[aitboudad]

@bandman0226 the mentioned stackblitz is working for me, could you please check it again or maybe I'm missing something 🤔.

[bandman0226]

My apologies. It was not working but I got it working after messing with the stackblitz for the datepicker code from the formly site. There were some things missing to run the demo code for that datepicker in stackblitz so I fixed the same on the original one I had trouble with.

Thanks again for taking the time to look at it!