Oops, forgetting the r. was a typo.
But it still looks to me like the compute function is only getting the
fields specified in update_record(). For example, here are logs of an update
in /appadmin and and update_record(drops=,duration=,start_date=):
2011-08-04 02:08:35,296 INFO 5_item.py 49 get_expire_date(): <Row
{'tax_state': '', 'status': 'active', 'shipping_method': 1, 'views': 0,
'image': '', 'flags': ['featured'], 'currency': 'USD', 'created_on':
datetime.datetime(2011, 8, 2, 14, 52, 35), 'tax_rate': None, 'created_by':
1, 'image_display': None, 'duration': 1, 'grouping': '', 'condition': '',
'description': '<br>', 'category': None, 'start_price': Decimal('11.00'),
'drops': 5, 'modified_by': 1, 'title': 'test', 'price_change':
Decimal('1.00'), 'shipping_amount': Decimal('0.00'), 'seller': 1,
'image_url': '', 'image_thumb': None, 'modified_on': datetime.datetime(2011,
8, 3, 18, 27, 48), 'start_date':
2011-08-04 02:08:52,925 INFO 5_item.py 49 get_expire_date(): <Row
{'duration': 1, 'drops': 5, 'start_date': datetime.datetime(2011, 7, 8, 14,
52)}>
