Looks like a bug. Feel free to open a Github issue.

Anthony

On Sunday, April 15, 2018 at 6:47:46 AM UTC-4, mweissen wrote:
>
> Yes, that is possible.
>
> def t():
>     db.tt.f.readable = False
>     form = SQLFORM.grid(db.tt)
>     return dict(form=form)
>
>
>
> But now there is the next problem. I try to use the Export "CSV" button 
> and I get another eooror:
>
> Ticket ID
>
> 194.118.190.134.2018-04-15.12-45-01.b4d5db05-e1e0-40b8-9233-47f2a2b37cca
> <type 'exceptions.KeyError'> '"tt"."ff"'Version
> web2py™ Version 2.15.4-stable+timestamp.2017.09.02.04.02.22
> Python Python 2.7.12: /usr/local/bin/uwsgi (prefix: /usr/local)Traceback
>
> 1.
> 2.
> 3.
> 4.
> 5.
> 6.
> 7.
> 8.
> 9.
> 10.
> 11.
> 12.
> 13.
> 14.
> 15.
> 16.
>
> Traceback (most recent call last):
>   File "/home/www-data/web2py/gluon/restricted.py", line 219, in restricted
>     exec(ccode, environment)
>   File "/home/www-data/web2py/applications/gridtest/controllers/default.py" 
> <https://sx.infosms.org/admin/default/edit/gridtest/controllers/default.py>, 
> line 100, in <module>
>   File "/home/www-data/web2py/gluon/globals.py", line 414, in <lambda>
>     self._caller = lambda f: f()
>   File "/home/www-data/web2py/applications/gridtest/controllers/default.py" 
> <https://sx.infosms.org/admin/default/edit/gridtest/controllers/default.py>, 
> line 14, in t
>     form = SQLFORM.grid(db.tt)
>   File "/home/www-data/web2py/gluon/sqlhtml.py", line 2601, in grid
>     raise HTTP(200, oExp.export(), **response.headers)
>   File "/home/www-data/web2py/gluon/sqlhtml.py", line 3648, in export
>     self.rows.export_to_csv_file(s, represent=True)
>   File "/home/www-data/web2py/gluon/packages/dal/pydal/objects.py", line 
> 2582, in export_to_csv_file
>     field = fieldmap[col]
> KeyError: '"tt"."ff"'
>
>
> It seems that the export function does not find the virtual field.
> Is there any workaround?
>
> Martin
>
>
> 2018-04-15 8:43 GMT+02:00 Anthony 
>>
>> But with the *field argument* I get an error:
>>>
>>> def t():
>>>     form = SQLFORM.grid(
>>>             db.tt,
>>>             *fields=[**db.tt.ff]*
>>>         )
>>>     return dict(form=form)
>>>
>>>
>> What happens if you remove the "fields" argument and instead limit which 
>> fields display by setting their "readable" attributes to False?
>>
>> Anthony
>>
>> -- 
>> Resources:
>> - http://web2py.com
>> - http://web2py.com/book (Documentation)
>> - http://github.com/web2py/web2py (Source code)
>> - https://code.google.com/p/web2py/issues/list (Report Issues)
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>
>
>
>

-- 
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- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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