I had a similar issue and using the latest master branch fixed it for me
(after the release of 2.16.1)
On Saturday, April 14, 2018 at 10:52:10 PM UTC+2, mweissen wrote:
>
> I have a model with a virtual field:
>
> db.define_table("tt",
> Field("f"),
> Field("gg"),
> Field.Virtual("ff", lambda r:r.tt.f)
> )
>
>
> And a grid:
>
> def t():
> form = SQLFORM.grid(
> db.tt,
> )
> return dict(form=form)
>
>
> Works fine.
> But with the *field argument* I get an error:
>
> def t():
> form = SQLFORM.grid(
> db.tt,
> *fields=[**db.tt.ff]*
> )
> return dict(form=form)
>
>
> Error ticket for "gridtest"
> Ticket ID
>
> 194.118.190.134.2018-04-14.22-40-01.bc6da3b6-bd21-4dbe-8c78-f50c4a349fec
> <type 'exceptions.KeyError'>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.
>
> 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 105, 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 16, in t
> db.tt.ff,
> File "/home/www-data/web2py/gluon/sqlhtml.py", line 2886, in grid
> value = row[str(field)]
> File "/home/www-data/web2py/gluon/packages/dal/pydal/objects.py", line 84,
> in __getitem__
> raise KeyError
> KeyError
>
> What is wrong?
>
>
> Regards Martin
>
>
>
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