On Jul 27, 2010, at 9:44 AM, James Cicenia wrote:

> Hello
> 
> I am using the following pattern. Upon creation of an object I also 
> instantiate three related objects.
> Upon saving, I then delete the related objects that have null data as so:
> 
>               if(att1.alertTarget()==null || att1.percentageOfAlert() == null 
> ){
>                       
> currentMasterAlert.removeFromAlertThresholdTargetsRelationship(att1);
>                       
> currentMasterAlert.ctEditingContext().deleteObject(att1);

IMO, better to remove it from both sides (unless 
removeFromAlertThresholdTargetsRelationship is doing that) OR to delete it and 
let the delete rules handle removing it.  Doing both may confuse EOF.

Chuck


>                       att1  = null;
>               }
> 
> Which throws the validation exception.
> 
> [2010-7-27 8:50:50 CDT] <WorkerThread7> Validation failed on an object [null] 
> with keypath = att2.alertTarget and exception: The alertTarget property of 
> AlertThresholdTarget must have a AlertTarget assigned
> [2010-7-27 8:50:50 CDT] <WorkerThread7> Validation failed on an object [null] 
> with keypath = att3.alertTarget and exception: The alertTarget property of 
> AlertThresholdTarget must have a AlertTarget assigned
> 
> What am I missing here or doing that is making a validation rule affect the 
> delete?
> 
> Thanks
> James
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-- 
Chuck Hill             Senior Consultant / VP Development

Practical WebObjects - for developers who want to increase their overall 
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