Ahhh . . . now I just feel silly! Thanks. Ian
On Thursday, March 15, 2012 4:57:58 PM UTC-4, rochacbruno wrote: > > You cannot perform a query to a Virtual Field, queries run on database > level, virtual fields runs on app level. > > You can just fetch a subset of rows then use .find() to fiter that rows. > > On Thu, Mar 15, 2012 at 5:55 PM, monotasker wrote: > >> I had a nice query set up and working that looked for any match between >> items in a list and records in a list-reference field: >> >> catXtags = [2,4,6,7,9] >> curr_loc.id = 6 >> >> db((db.paths.tags.contains(catXtags)) & (db.paths.locations.contains( >> curr_loc.id)) >> >> I changed db.paths.tags to be a virtual field that constructs the same >> list of foreign id's dynamically. But now when I run the query I get this >> error: >> >> <type 'exceptions.KeyError'> 'tags' >> The weird thing is that when I print db.paths.tags in the preceding line >> I get a nice list of integers. So the key 'tags' does seem to exist in >> db.paths.fields and the data should be the right format. I'm really not >> sure what I'm doing wrong! >> >> Any help is much appreciated. For reference, the full error traceback is >> below. >> >> Traceback (most recent call last): >> File "/home/ian/web/web2py/gluon/restricted.py", line 204, in restricted >> >> >> exec ccode in environment >> File "/home/ian/web/web2py/applications/paideia/controllers/exploring.py" >> <http://127.0.0.1:8000/admin/default/edit/paideia/controllers/exploring.py>, >> line 104, in <module> >> >> >> File "/home/ian/web/web2py/gluon/globals.py", line 172, in <lambda> >> >> >> self._caller = lambda f: f() >> >> >> File "/home/ian/web/web2py/gluon/tools.py", line 2533, in f >> >> >> return action(*a, **b) >> File "/home/ian/web/web2py/applications/paideia/controllers/exploring.py" >> <http://127.0.0.1:8000/admin/default/edit/paideia/controllers/exploring.py>, >> line 95, in index >> >> >> return step_init() >> File "/home/ian/web/web2py/applications/paideia/controllers/exploring.py" >> <http://127.0.0.1:8000/admin/default/edit/paideia/controllers/exploring.py>, >> line 21, in step_init >> >> >> path_result = path.pick() >> File "applications/paideia/modules/paideia_exploring.py", line 196, in pick >> >> >> p = self.find_paths(cat, curr_loc) >> >> >> File "applications/paideia/modules/paideia_exploring.py", line 232, in >> find_paths >> >> >> catXpaths = db((db.paths.tags.contains(catXtags)) >> >> >> File "/home/ian/web/web2py/gluon/dal.py", line 5542, in __getattr__ >> >> >> return self[key] >> File "/home/ian/web/web2py/gluon/dal.py", line 5482, in __getitem__ >> >> >> return dict.__getitem__(self, str(key)) >> >> KeyError: 'tags' >> >> >> > > > -- > > Bruno Rocha > [http://rochacbruno.com.br] > >
