Apple

On Nov 22, 2006, at 10:49 AM, Alexander Spohr wrote:

Am 22.11.2006 um 09:39 schrieb Fabrice Pipart:

Is it me that asked for that in the Qualifier or that's a mistake of EOF ?

It's EOF’s mistake.
EOF makes sure that you get your persons. So it needs to join them with the employee and the employer tables. Therefore the AND. It has no notion that you wanted to different joins - and those connected by OR.

You are right. This is what you want:
(T1.COMPANY_FID = ? AND T0.ID = T1.PERSON_FID) OR (T2.COMPANY_FID = ? AND T0.ID = T2.PERSON_FID)
But EOF can not create that for you, as it tries to qualify one result set, that fits the given qualifier. You want two result-sets in one select statement.

Ah !

Good to hear !

I was wondering if I was mad or that bad in SQL ;-)

Solution: Do two fetches.

I can do that, now that I know there is no mistake on my side.

Something like :

EOQualifier qual = new EOKeyValueQualifier("employer.company", EOQualifier.QualifierOperatorEqual, playlist);

EOSortOrdering nameOrdering = EOSortOrdering.sortOrderingWithKey("name", EOSortOrdering.CompareAscending);

NSMutableArray ordering = new NSMutableArray();

ordering.addObject(nameOrdering);

EOFetchSpecification fs = new EOFetchSpecification("Media", qual, ordering, true, false, null);

NSArray mediaList = ec.objectsWithFetchSpecification(fs);

EOQualifier qual = new EOKeyValueQualifier("employee.company", EOQualifier.QualifierOperatorEqual, playlist);

EOSortOrdering nameOrdering = EOSortOrdering.sortOrderingWithKey("name", EOSortOrdering.CompareAscending);

NSMutableArray ordering = new NSMutableArray();

ordering.addObject(nameOrdering);

EOFetchSpecification fs = new EOFetchSpecification("Person", qual, ordering, true, false, null);

NSArray mediaList = ec.objectsWithFetchSpecification(fs);

And use EOKeyValueQualifier and EOOrQualifier, thats cleaner and faster.

.... what do you mean there ?

Ok I can create EOOrQualifier filter = new EOOrQualifier(new NSArray(new Object[] { employerFilter, employeeFilter }));

But then, how can that help me ?

I suppose you're talking about in memory operations but I can't see how to do this...

Please note that I need distincts objects because some will be common between the two fetches

I am absolutely sorry if the question is stupid :-(

Fabrice

good luck,
atze

Freeport & Soliversum
Alexander Spohr
email@hidden
www.freeport.de