Hi Kevin,
On Jun 3, 2011, at 12:53 PM, Kevin Hinkson wrote:
> On 3 Jun 2011, at 15:10, Chuck Hill wrote:
>
>>> When one of my checks fail I do:
>>>
>>> throw new NSValidation.ValidationException("Please enter a valid email
>>> address.");
>>>
>>> In either case (with only one enabled at a time) validateForSave and
>>> validateEmail can be seen throwing an exception which I log but this is
>>> only thrown after the EO is inserted into the database which is done by
>>> saving the editing context.
>>
>> The EO is in the database when you get this error? That seems unlikely. It
>> should be thrown during ec.saveChanges() before getting written to the
>> database. Check the stack trace.
>
> It is, but not for the reason I thought. In validateEmail I was doing a
> lookup to ensure that the email was not already in the database.A better way is to use a unique constraint on the column in the database. The downside of that is that the database exception is harder to interpret and varies between databases. > Right after the EO is saved to the db, I have another EO being created, given > a relationship to the first EO and saved again, so the validateEmail is being > triggered on the second save. So I now exclude the current EO by matching on > it's primary key as well. > > Is there a better way to create new EOs that have relationships other than: > EO1 -> save. > EO2 -> init -> add relationship to EO1 -> save both. > > Is there a way to init EO1 and EO2, add the relationship and just have WO > take care of the rest? There is no need for the first save. Trust in EOF: > EO1 -> init > EO2 -> init > -> add relationship to EO1 > -> save both. Chuck -- Chuck Hill Senior Consultant / VP Development Come to WOWODC this July for unparalleled WO learning opportunities and real peer to peer problem solving! Network, socialize, and enjoy a great cosmopolitan city. See you there! http://www.wocommunity.org/wowodc11/
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
