>Have you looked at django.core.validators? There's one in there called >RequiredIfOtherFieldNotGiven that might do what you want. You'd want >to make both fields blank=True and add that validator to >validator_list
Keep in mind that cross-field-validators only work on the main record, not on possibly edit_inline'ed records. That's because they use the field names to access them through all_data, but inlined records get different field names (with the model they come from and a running number attached to the field name). There is a patch with a hackish fix for that problem in the ticket system. bye, Georg
