[TYPO3-mvc] extbase update a root object updates foreign child objects

[Claus Due]

hi Matthias,

If you use 1:n relations then the child objects are moved (field value on child record pointing to parent record uid gets overwritten). With a m:n relation what you describe should work (mm-table is updated with new relations and existing references from/to other parent objects are preserved).

Cheers,
Claus

On Sep 9, 2011, at 2:25 PM, Matthias Schubert wrote:

> Hello,
> 
> I have an issue concerning extbase and the update() method.
> 
> I got an existing root object which already was in the repository with no child objects. What I do is adding many child objects to the transient root object und persist it to the repository with update($root).
> 
> What now happens is, that older child objects from other root objects are updated and so deleted for the other root. Why is this happening? Is there a failure in the model? How can I avoid this?
> 
> I will be very thankfull for any suggenstions.
> 
> Regards,
> 
> Matthias
> 
> 
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