Re: Create Entity, Delete Entity, Why does validation occur?
Re: Create Entity, Delete Entity, Why does validation occur?
- Subject: Re: Create Entity, Delete Entity, Why does validation occur?
- From: Chuck Hill <email@hidden>
- Date: Mon, 21 Jun 2010 15:12:37 -0700
On Jun 21, 2010, at 2:10 PM, James Cicenia wrote:
> Hello -
>
> I am doing this:
>
> if(att1.alertTarget()==null || att1.percentageOfAlert() == null ){
> currentMasterAlert.removeFromAlertThresholdTargetsRelationship(att1);
> currentMasterAlert.ctEditingContext().deleteObject(att1);
> att1 = null;
> }
>
>
> but get this:
>
> [2010-6-21 16:4:50 CDT] <WorkerThread8> Validation failed on an object [null] with keypath = att3.alertTarget and exception: The alertTarget property of AlertThresholdTarget must have a AlertTarget assigned
You probably don't need the removeFromAlertThresholdTargetsRelationship, the model is probably doing that for you.
> Yet it does delete the entity:
Does it save the delete?
> Why does it want to run validation during a delete?
Validating Before an Operation
The EOValidation methods -- validateForInsert, validateForUpdate, validateForSave, and validateForDelete -- validate an entire object to see if it's valid for a particular operation. These methods are invoked automatically by the Enterprise Objects Framework when the associated operation is initiated.
http://developer.apple.com/legacy/mac/library/documentation/MacOSXServer/Reference/WO54_Reference/com/webobjects/eocontrol/EOValidation.html
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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