Anthony, thanks for your response, the only inconvenience that I see is
that the 'update_date' Field will be updated if there's a change in the
whole Row, instead of a particular Cell. How can we specify to update if a
particular Cell changed?
On Friday, October 31, 2014 10:24:15 PM UTC-4, Anthony wrote:
>
> Does this work:
>
> db.define_table('dogs', ...,
> Field('creation_date', 'datetime', default=now),
> Field('update_date', 'datetime', default=None, update=now
> ))
>
> Then in your update_or_insert, don't explicitly specify either of those
> fields and let the default/update attributes handle it.
>
> Anthony
>
> On Friday, October 31, 2014 5:47:41 PM UTC-4, Luis Ramos wrote:
>>
>> I'm currently using this method to insert new elements. How can I update
>> the 'update_date' field only if there's an update and only insert the
>> 'creation_date' one time?
>>
>> import datetime
>>
>> now = datetime.datetime.now()
>>
>> db.define_table('dogs', Field('name'),
>> Field('owner'),
>> Field('address'),
>> Field('creation_date', 'datetime'),
>> Field('update_date', 'datetime'))
>>
>>
>> q1 = db.dogs.name == 'Paco'
>> q2 = db.dogs.owner == 'Rob'
>>
>> db.dogs.update_or_insert((q1) & (q2), name='Paco', owner='Rob',
>> creation_date=now)
>>
>
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