On Apr 8, 2009, at 3:28 , Aristedes Maniatis wrote:
> On 08/04/2009, at 11:03 AM, Joseph Schmidt wrote:
>>> * write the record to database, fetch it back again and
>>> then you'll have the primary key
>> Than this is not the same transaction :(.
> Correct. This is a limitation of how databases work, not Cayenne.
> You can't have a primary key until you write the record, unless you
> do something tricky like using a nanosecond timestamp hashed with
> the MAC address of your machine and the number you first thought of.
UUID is a good alternative.
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