[FIXED] Ticket #4453 - Problem to removing references in a PropertyLinkListGlobal

[walpa]

HI,

I don't know if it's a bug or I'm doing something wrong.

When trying to clear the property links, the exception is generated:
<Exception> type must be 'DocumentObject' or list of 'DocumentObject', not NoneType
And the link persists.

The attached script shows the situation:
- copy the script to the ./FreeCAD/Macro folder
- open the FC
- run the script
- create the link in the "Operates On" property
- try removing this link

phpBB [video]

OS: Linux Mint 19.3 (X-Cinnamon/cinnamon)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22611 (Git) AppImage
Build type: Release
Branch: master
Hash: 7eeec7a5990cc786723225ca8de16ca3186545b3
Python version: 3.8.5
Qt version: 5.12.9
Coin version: 4.0.0
OCC version: 7.4.0
Locale: Portuguese/Brazil (pt_BR)

Please, guide me!
Thank you for your help!

[vocx]

When trying to clear the property links, the exception is generated:
<Exception> type must be 'DocumentObject' or list of 'DocumentObject', not NoneType

This looks like a bug.

It works fine from the Python console, so the error is only triggered when trying to clear the property by the property editor and Link dialog.

Code: Select all

App.ActiveDocument.test.SomeProperty = []

ping

[walpa]

Thanks @vocx and @wmayer for the quick response.

Created ticket 0004453 in bug tracker.

I look forward to the solution.

[Kunda1]

Linking to ticket: issue #4453 + added ticket number to thread title

[chennes]

Linking to ticket: issue #4453 + added ticket number to thread title

I think I got this fixed with https://github.com/FreeCAD/FreeCAD/pull/4036. Just a one-liner, converting an empty link list from "None" to "[]".

ETA: For posterity's sake, that turned out to not be the fix after all, but @yorikvanhavre and @wwmayer got me straightened out .

[Kunda1]

git commit 031619db
Marked thread as [FIXED]
Thank you @chennes