Re: ec.deleteObject() and NSValidationErrors caused by the delete
Re: ec.deleteObject() and NSValidationErrors caused by the delete
- Subject: Re: ec.deleteObject() and NSValidationErrors caused by the delete
- From: Chuck Hill <email@hidden>
- Date: Thu, 25 Sep 2008 11:38:45 -0700
On Sep 25, 2008, at 11:31 AM, Joe Little wrote:
On Thu, Sep 25, 2008 at 11:26 AM, Chuck Hill <chill@global-
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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