def do_weight_matrix(self):
for o in RentList.get_priority1():
w = RentAllocationMatrix.calculate_weight(o)
debug('Allocation weight for %s - %s %s (%s): %s (old: %s)', o.id, o.item, o.item.category, o.user, w, o.weight)
if w != o.weight:
o.weight = w
o.save()
