On Wednesday, September 21, 2016 at 9:36:14 AM UTC-4, Scott Hunter wrote:
>
> Here's a simple controller using an SQLFORM.grid w/ selectable:
>
> def open_requests():
> print 'Req: %r' % request.vars
> query = ...
> form = SQLFORM.grid(query, csv=False, details=False, deletable=
> False, editable=False, searchable=False, create=False,
> selectable = lambda ids : None)
> return locals()
>
> This, as expected, puts a checkbox on each row. If I select two rows and
> hit Submit, I get the following printed from the server:
>
> Req: <Storage {'records': ['142', '196'], '_formkey':
> '0720df2b-6449-43c8-a6b7-6c89dfdebcd3', '_signature':
> 'cbc73b5fbdc8e5961830efbe3f672f35a41d6771', '_formname': 'web2py_grid'}>
> Req: <Storage {'_signature': 'cbc73b5fbdc8e5961830efbe3f672f35a41d6771'}>
>
> The section of the online book about this says the lambda in the
> selectable should be a redirect; when it was, I still got 2 requests, but
> the second had an added var w/ the selected IDs.
>
The book doesn't say the callback should do a redirect -- that's just an
example. In any case, if your callback doesn't do a redirect, then the grid
code itself will do a redirect back to the original URL. This is by design
(maybe so reloading the page or leaving and returning don't trigger a
browser warning and subsequent re-posting of the selected rows).
Anthony
--
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- http://web2py.com/book (Documentation)
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