[eluser]OverZealous[/eluser]
[quote author="monkeyhouse" date="1256082415"]Is this a DMZ issue or something I did wrong?[/quote]
A few things, for future reference:
1) When posting errors, it helps if you post the error itself. That way we don't have to figure out what's wrong.
2) It helps to have the relevant portions of the model, such as parts of validation array.
That being said, I'm pretty sure you are using related validation rules, and it does appear to be a bug in DMZ in how it generates the related query.
I don't have the time to fix it and package it properly right now, but I threw together a possible fix. I've attached an updated version of the datamapper.php library that should fix this bug. Please test it out, and let me know.
