On Sep 25, 2008, at 11:31 AM, Joe Little wrote:

On Thu, Sep 25, 2008 at 11:26 AM, Chuck Hill <[EMAIL PROTECTED] village.net> wrote:
Hi joe,


On Sep 25, 2008, at 11:17 AM, Joe Little wrote:

I'm in the midst of doing some archival code. Once my objects are
copied off into their archival EOs, I then run this line:

ec.deleteObject(thisApplicant);

I get tons of exceptions based on NSValidationErrors, as various
foreign keys won't be satisfied. Example:

An Exception occured while trying to save the information:
com.webobjects.foundation.NSValidation$ValidationException: The
applicant property of Eval must have a Applicant assigned

My various delete rules in my model are all nullify. I'm presuming
that I need CASCADE instead to resolve the foreign key management? Or
is it simply a matter of changing the optionality to Optional from
Mandatory?

If deleting those objects is OK, then a CASCADE rule is what you want. Otherwise, make the relationships optional. You will probably need to
update the nullity of the database columns too.


Well, I changed to cascade to test out that theory, and it seems to
get past those steps, but I'm getting a more esoteric error now for
each delete. Does this sound familiar?

<low whistle>
Um, no.  That is (happily) not familiar at all.


An Exception occured while trying to save the information:
com.webobjects.eoaccess.EOGeneralAdaptorException: The attribute
NeededByEOF0 should be assigned a Number, but the value was the String
"20"

Its always the same line with simply String "20 switching to "56" "14"
"66" "29" etc.


Any idea what this value is? A PK/FK? Some data? NeededByEOF0 is usually EOF creating temporary things it needs to walk the object graph. Do you have any exposed (class property) FK attributes?

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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