Many thanks Ken, that was it ! I've added all back-pointing relationships (no need to generate attributes for them) and prefetch works, even on the parent entity (A in my example), that's a great improvement !
Cheers, Alex 2013/12/9 Alexis Tual <[email protected]> > Yes it's referencing A in my example. Do I have to reference all > subentities of A ? I'll try tomorrow at the office. > > Thanks > > Alex > > > 2013/12/9 Ken Anderson <[email protected]> > >> Is the back pointing relationship referencing the superclass? You need >> to create multiple relationships, specifically naming all the subclasses. >> >> On Dec 9, 2013, at 5:41 PM, Alexis Tual <[email protected]> wrote: >> >> Hi Ken, >> >> thanks for your suggestion, but I already have the backpointing >> relationship... >> I'll try to do a simple projet to isolate the issue. >> >> Alex >> >> >> >> 2013/12/6 Ken Anderson <[email protected]> >> >>> In ancient times… (and I mean like, 15 years ago) >>> >>> A back pointing relationship from the subclasses of B to the abstract A >>> (where the to-many relationship ‘toB' is) was necessary for all the >>> plumbing to hook things up when the EOs came back from the prefetch. >>> >>> Ken >>> >>> On Dec 5, 2013, at 3:08 PM, Alexis Tual <[email protected]> wrote: >>> >>> > Hi, >>> > >>> > I have 2 single table hierarchies : >>> > - B1 inherits from B >>> > - A1 inherits from A (abstract), A1 has a to-many relationship to B, >>> let's call it toBs >>> > >>> > is it possible to prefetch this relationship ? >>> > >>> > We can't manage to get it work, I'll past the obscure exception >>> tomorrow but can anyone confirm that this kind of prefetch works with EOF ? >>> > I've also tried ERXBatchFetchUtilities which seems promising "This >>> works much like prefetching with fetch specifications, however this >>> implementation is able to work around inheritance where prefetching fail", >>> but no luck :/ >>> > >>> > Thanks >>> > >>> > Alex >>> > >>> > _______________________________________________ >>> > Do not post admin requests to the list. They will be ignored. >>> > Webobjects-dev mailing list ([email protected]) >>> > Help/Unsubscribe/Update your Subscription: >>> > >>> https://lists.apple.com/mailman/options/webobjects-dev/kenlists%40anderhome.com >>> > >>> > This email sent to [email protected] >>> >>> >> >> >
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