Do you lambda is more complicated than what you show? If all the field required for the lambda to compute are not available it failed silently.
For example : db.tab.field_computed.compute=lambda record: record.field1+record.field2 If field1 or field2 is not available the computation will not work. Richard On Fri, May 25, 2012 at 4:45 PM, peter <[email protected]> wrote: > Thanks I should have used update_record. However still no compute, and > compute does not work when editing also. > Peter > > > On Friday, May 25, 2012 6:50:33 PM UTC+1, peter wrote: >> >> I am using web2py 1.99.7 >> >> I have a compute as >> >> db.image.thumb.compute=lambda r:THUMB(r['file']) >> >> >> I update the whole database >> >> def update_images(): >> rows=db(db.image).select() >> for row in rows: >> row.update(title=row.title) >> db.commit() >> >> >> Yet, the computes have not occurred. >> >> Similarly if I edit a record and submit, no compute. Yet if I add a >> record, the compute does take place. >> >> Anyone any ideas why? >> >> Thanks >> Peter >> >
