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Re: Inheritance and relationships
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Re: Inheritance and relationships


  • Subject: Re: Inheritance and relationships
  • From: Chuck Hill <email@hidden>
  • Date: Fri, 8 Aug 2008 09:27:53 -0700


On Aug 8, 2008, at 9:22 AM, Guido Neitzer wrote:

On 08.08.2008, at 06:31, Guido Neitzer wrote:

But I think, there must be something funky with my models from the refactoring. Right now, I can't even do a

NSArray result = Person.fetchAllPersons(editingContext, null);

It craps out with a similar illegal state exception.

Something is really broken here and I haven't found, where.

When I do the following:

NSArray result = EOUtilities .objectsForEntityNamed(editingContext,BaseUser.ENTITY_NAME);

I get the same problem. It fetches the rows:

SELECT <All Attributes> FROM contacts t0 WHERE (t0.inheritance_type = 'BaseUser' OR t0.inheritance_type = 'EventsUser')

Isn't AppUser a subclass of BaseUser too? Where is the qualifier for that?



...
10:11:00 -- ERXNSLogLog4jBridge -- :46 DEBUG - 4 row(s) processed

But it crashes when interpreting the results:

10:11:00 -- ERXDatabaseContextDelegate -- :153 INFO - Database Exception occured: java.lang.IllegalStateException: initializeObject: No snapshot for gid _EOIntegralKeyGlobalID[EventsUser (java.lang.Long)10049]

Is the row with PK 10049 and EventsUser?


On a reduced test case I can't reproduce the problem. I'm at a loss at the moment. Any ideas where I can look?


.Net?  :-P

It sounds like the snapshots are not getting created correctly. Other than that, no. I fear you are in for some hard work.



Chuck


-- Chuck Hill Senior Consultant / VP Development

Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
http://www.global-village.net/products/practical_webobjects







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  • Follow-Ups:
    • Re: Inheritance and relationships
      • From: Guido Neitzer <email@hidden>
References: 
 >Inheritance and relationships (From: Guido Neitzer <email@hidden>)
 >Re: Inheritance and relationships (From: Lachlan Deck <email@hidden>)
 >Re: Inheritance and relationships (From: Guido Neitzer <email@hidden>)
 >Re: Inheritance and relationships (From: Guido Neitzer <email@hidden>)

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