You need to initialize the form variable in the so when request.vars is
null you have something pass to return.
See - form = None in the code below.
-Jim
On Monday, November 21, 2016 at 9:42:54 AM UTC-6, Hugo wrote:
>
>
> Hello,
>
> I am facing an error when using web2py sqlform.grid that I am not
> understanding why.
>
> I have the controller where I define the form:
>
> def search_records():
>
> form = None
> if request.vars:
> selectable = request.vars.z
> DBconn = db._uri
>
> name = searchtable(selectable)
>
> try:
> form = SQLFORM.grid(query=name, orderby=None, searchable=True,
> sortable=True, paginate=20, deletable=True,
> editable=True, details=True, selectable=None,
> user_signature=False, create=True, csv=False,
> links=None, links_in_grid=True,
> maxtextlength=100, sorter_icons=('[^]', '[v]'),
> ui='jquery-ui', showbuttontext=True,
> _class="web2py_grid", formname='web2py_grid',
> search_widget='default', ignore_rw=True)
>
> response.view = 'default/search_records.html'
>
> except:
> redirect(URL('default', 'index'))
>
>
> return dict(form=form, selectable=selectable)
>
>
> the function searchtable returns the table to present in the grid, so the
> variable name is spmething like: db.TABLE_TO_PRESENT
>
> The view page returns what is expected with the respective links "add
> record", "view", "edit" and "delete. The error comes when I use the link
> "add record" or "edit". After opining the correct page to insert the data,
> when clicking submit it shows the error:
>
> 1.
> 2.
> 3.
> 4.
> 5.
> 6.
> 7.
> 8.
> 9.
> 10.
>
> Traceback (most recent call last):
> File "...\web2py\gluon\restricted.py", line 227, in restricted
> exec ccode in environment
> File ".../applications/Mappings/controllers/search_records.py"
> <http://127.0.0.1:8000/admin/default/edit/Mappings/controllers/search_records.py>,
> line 44, in <module>
> File "...\web2py\gluon\globals.py", line 417, in <lambda>
> self._caller = lambda f: f()
> File ".../web2py/applications/Mappings/controllers/search_records.py"
> <http://127.0.0.1:8000/admin/default/edit/Mappings/controllers/search_records.py>,
> line 36, in search_records
> return dict(form=form, selectable=selectable)
> UnboundLocalError: local variable 'form' referenced before assignment
>
>
> So it seems that it loses the information relative to that form that was
> previously loaded.
>
> I am trying to understand the reason for this but I can't get to any
> conclusion. Can anyone help me?
>
> Thank you.
>
>
>
>
--
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