Django Haystack random errors using Whoosh - django

Question

I am using django-haystack and Whoosh on my Ubuntu server and finding that certain search queries just raise an error page, and I have no idea why this is happening...
I am using the following ones
Whoosh==2.4.0
django-haystack==1.2.7
And I also run python manage.py update_index once every hour
Example traceback
Traceback (most recent call last):
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 111, in get_response
response = callback(request, *callback_args, **callback_kwargs)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/newrelic-1.2.0.246/newrelic/hooks/framework_django.py", line 430, in __call__
return self.__wrapped(*args, **kwargs)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/haystack/views.py", line 50, in __call__
return self.create_response()
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/haystack/views.py", line 145, in create_response
return render_to_response(self.template, context, context_instance=self.context_class(self.request))
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/shortcuts/__init__.py", line 20, in render_to_response
return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/loader.py", line 188, in render_to_string
return t.render(context_instance)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 123, in render
return self._render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/newrelic-1.2.0.246/newrelic/api/function_trace.py", line 82, in __call__
return self._nr_next_object(*args, **kwargs)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 117, in _render
return self.nodelist.render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 744, in render
bits.append(self.render_node(node, context))
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 757, in render_node
return node.render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 127, in render
return compiled_parent._render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/newrelic-1.2.0.246/newrelic/api/function_trace.py", line 82, in __call__
return self._nr_next_object(*args, **kwargs)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 117, in _render
return self.nodelist.render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 744, in render
bits.append(self.render_node(node, context))
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 757, in render_node
return node.render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/newrelic-1.2.0.246/newrelic/hooks/framework_django.py", line 622, in __call__
return self.__wrapped(*args, **kwargs)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 64, in render
result = block.nodelist.render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 744, in render
bits.append(self.render_node(node, context))
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 757, in render_node
return node.render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/defaulttags.py", line 311, in render
return self.nodelist_true.render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 744, in render
bits.append(self.render_node(node, context))
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 757, in render_node
return node.render(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/defaulttags.py", line 227, in render
nodelist.append(node.render(context))
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 915, in render
resolved_vars = [var.resolve(context) for var in self.vars_to_resolve]
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 653, in resolve
value = self._resolve_lookup(context)
File "/home/fundedbyme/.virtualenvs/fundedbyme/local/lib/python2.7/site-packages/django/template/base.py", line 692, in _resolve_lookup
raise VariableDoesNotExist("Failed lookup for key [%s] in %r", (bit, current)) # missing attribute
VariableDoesNotExist: Failed lookup for key [object] in u'None'
<WSGIRequest
GET:<QueryDict: {u'q': [u'stockholm']}>,

Answer 1

Could you please put here your view and your template code? If this is happening with just some queries and not all of them, it could be the parameters you are passing to the view.
Here's the code of the view I'm using to make search queries using Haystack 2.0 and Whoosh 2.3.2 in a project of my own:
def search(request):
sqs = SearchQuerySet().filter(content=AutoQuery(request.GET['q']))
return render_to_response('search.html', {'sqs': sqs,})
and this works perfectly fine. I guess you should consider using the latest version of Haystack, because I was experiencing a lot of bugs with the old stable ones. And I recommend you to use the "rebuild_index" once in a while too, just in case.