Hard to say without seeing your code, but it definitely works for me.
On Saturday, March 30, 2019 at 2:37:27 PM UTC-4, João Matos wrote:
>
> How can I use the fields argument without a db?
> I tried
> fields=['sn']
> but it returns an KeyError.
>
>
> sábado, 30 de Março de 2019 às 18:27:11 UTC, Anthony escreveu:
>>
>> I don't see any advantage in using the fields parameter because the
>>> change I found
>>> form.element('#no_table_sn')['_readonly'] = 'readonly'
>>> and the suggestion you made
>>> widget=lambda f, v: SQLFORM.widgets.string.widget(f, v, _readonly=True)
>>> only change 1 line, and using the fields would make me change all the
>>> Fields lines (if I'm not mistaken).
>>>
>>
>> No, "fields" is an argument of SQLFORM:
>>
>> form = SQLFORM.factory(..., fields=['field1', 'field2', ...])
>>
>> Anyway, setting the _readonly attribute of the input widget and setting
>> writable=False in the Field() definition do two different things. The
>> former makes the input element read-only in the UI but is less secure
>> because it does not prevent writes on the server. The latter does not use
>> an input element to display the data in the UI, and it also prevents writes
>> on the server.
>>
>> Anthony
>>
>
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