db.define_table('your_table',
#your other fields here
Field("added_on", 'datetime', default=request.now),
Field("updated_on", 'datetime', default=request.now,
update=request.now),
)and don't bother, just do inserts and updates
db.define_table('your_table',
#your other fields here
Field("added_on", 'datetime', default=request.now),
Field("updated_on", 'datetime', default=request.now,
update=request.now),
)and don't bother, just do inserts and updates