[TYPO3-mvc] RFT (Request For Tests): support for TCA group fields (hurry to probably get it into 1.3.0)

[Franz Koch]

Hey Kevin,

> thanks for the hint. After adding $newItem->addPortal($portal); my
> relation isn't deleted anymore and also the count is fine.

strange thing is, that I was not able to reproduce the behavior you 
mentioned (also not without the back reference). So I wonder what's the 
cause of this in your case.
I assume it's because the portal as aggregate root gets persisted first 
and is creating the reference. Then the new item is processed and the 
same relation is processed again from the opposite side, first wiping 
all existing relations (which is intended) and then recreates it. And in 
case you haven't created a back reference there is no relation to 
recreate which would be correct from the point of the new item itself, 
but of course not for your intention. Question is here, is this really a 
bug in Extbase or expected behavior due to the missing back reference in 
the item? For me it's expected behavior and is/was more a bug in your 
extension. But I'm open for discussion and concepts to solve this issue 
- currently I can't think of a automated solution for this because how 
should extbase know which of the objects is holding the more recent 
state of that specific relation?.

-- 
kind regards,
Franz Koch