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Re: Core Data and unique IDs
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Re: Core Data and unique IDs


  • Subject: Re: Core Data and unique IDs
  • From: Mike Zornek <email@hidden>
  • Date: Sun, 30 Jul 2006 15:37:00 -0400

On 7/30/06 12:09 AM, "email@hidden" <email@hidden> wrote:

> Just make a common super entity that has a uuid field that holds a
> string value.
> In the awakeFromInsert method, set the value of the uuid field using
> CFUUID and its string uuid method.
> It will then persist in all sub entities (and as long as they
> subclass from that class)
>
> You can then use it sort of like a globally unique-primary key of sorts.
> Its very useful in my opinion.

This is exactly what I do and it works fine. Originally, I was using the
built in uuid field in Core Data but the problem with that is it is not set
until an object is saved to the store.

~ Mike
--
Work: http://ClickableBliss.com
Play: http://MikeZornek.com


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