Hi,
On 2014-11-25, 2:15 PM, "OC" wrote:
Chuck,
===
... code as above ...
if (ocs_is_primary_key_constraint(exception) &&
adaptorOp.adaptorOperator()==EODatabaseOperation.AdaptorInsertOperator) {
NSArray pka=entity.primaryKeyAttributes()
EOQualifier
pkq=ERXEOAccessUtilities.qualifierFromAttributes(pka,adaptorOp.changedValues())
// contains the PK
EOFetchSpecification fs=new EOFetchSpecification(entityName,pkq,null)
fs.setRefreshesRefetchedObjects(YES)
NSArray objs=ec.objectsWithFetchSpecification(fs)
if (objs.count()==1) {
// OK, my code does get here, the object inserted by other instance is
fetched all right. But what now?!?
???
_saveTolerantlyChangesInEC(ec) // let's try again
... ...
===
Set the relationships for any other objects into the EC to the one fetched, not
the one just created and then ec.deleteObject(dupicate object))
Hmmm, there's one weird thing -- sometimes, I get from
ec.objectsWithFetchSpecification the VERY SAME object which is in
ec.insertedObjects?!?
Interesting. I think your setting of the PK is confusing EOF as it identifies
objects with a combination of Entity and PK. So you have one EO in memory
marked as "new, to be saved" and another one that has been fetched and is
obviously not new. I will assume that changing to not use a PK that you define
is not an option at this point in time.
I've tried to add
ec.fetchTimestamp=System.currentTimeMillis()
but it does not seem to help, still I keep getting the same object in the
insertedObjects array AND fetched. If this happens, I am sorta SOL, for
(a) if I do not delete the object, it gets inserted again, and the exception
repeats
(b) if I do delete it, not much surprisingly I'm in for a "cannot save changes:
Cannot obtain globalId for an object which is not registered in any
editingContext".
What if you do this when the exception arises:
1. Set relationships to this EO to null
2. Delete the object to get it out of inserted objects
3. Fetch the object
4. Set the relationships to the fetched object
5. Save again
Now I am investigating what might be the culprit (so far in vain). If you can
see a possible reason -- or at least a solution, let me please know.
The EOGlobalID is the same but the inserted state is captured in the EC. How
hard would it be to re-create the whole set of objects to be saved in a
different EC?
Chuck
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