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ERXEOControlUtilities.objectCountForToManyRelationship for new objects fails?
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ERXEOControlUtilities.objectCountForToManyRelationship for new objects fails?


  • Subject: ERXEOControlUtilities.objectCountForToManyRelationship for new objects fails?
  • From: OC <email@hidden>
  • Date: Wed, 13 Apr 2016 19:12:48 +0200

Hi there,

with ERXEOControlUtilities.objectCountForToManyRelationship I have bumped into a weird problem — with newly created EOs it fails, yelling that “... is not a toMany relationship! Expected an NSArray, but got null” (exact copy below).

Now, perhaps I do something wrong, but it seems to me it is perfectly normal in EOF that all to-manys of a newly created EO are null? At the very least, whenever I checked, they were.

So far, the only fix I have found is to refault the newly created object immediately, which helps (fetch replaces those nulls by empty arrays), but it is pretty ugly:

===
        DBDataBlock bc=... create new EO and insert it into an EC ...
        ... set it up ...
        if (!ec.saveChanges()) return ERROR...
        bc.editingContext.refaultObject(bc) // <==== this helps. Without this line, to-manys are nulls now
===

Is there any better solution?

And what am I overlooking? To me, the check for null in objectCountForToManyRelationship looks like a bug.

Thanks a lot,
OC

===
18:53:43.124 WARN  <er.extensions.appserver.ERXComponentRequestHandler>: Exception occurred while handling request:
java.lang.IllegalArgumentException: The attribute named 'actions' in the entity named 'DBDataBlock' is not a toMany relationship! Expected an NSArray, but got null.       //log:NSLog [WorkerThread0]
[2016-4-13 18:53:43 CEST] <WorkerThread0> java.lang.IllegalArgumentException: The attribute named 'actions' in the entity named 'DBDataBlock' is not a toMany relationship! Expected an NSArray, but got null.
	at er.extensions.eof.ERXEOControlUtilities.objectCountForToManyRelationship(ERXEOControlUtilities.java:802)
...
===
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