Index out of range when displaying taskstate in djcelery admin with mongodb backend

[dryf]

Hi,

it is not possible to display celery task state when using django with MongoDB back end.

StackOverflow issue

Link to the stacktrace

Can you please fix it ?

[dpkimball]

Hi all, any luck on this? This is not specific to celery. More to MongoDB. I think it has to do more that collection is null. It's assuming there can be a cursor object. Here's the stack. Not sure where I should put this.

Request Method: GET
Request URL: http://127.0.0.1:8000/admin/someapp/someapp/

Django Version: 1.3.1
Python Version: 2.7.2
Installed Applications:
['django_mongodb_engine',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.admin',
'someapp',
'djangotoolbox',
'django_mongodb_engine']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')

Template error:
In template /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/contrib/admin/templates/admin/change_list.html, error at line 79
Caught IndexError while rendering: list index out of range
69 : {% endif %}

70 : {% endblock %}

71 : {% if cl.formset.errors %}

72 :

73 : {% blocktrans count cl.formset.errors|length as counter %}Please correct the error below.{% plural %}Please correct the errors below.{% endblocktrans %}

74 :

75 : {{ cl.formset.non_form_errors }}

76 : {% endif %}

77 :

78 : {% block search %}{% search_form cl %}{% endblock %}

79 : {% block date_hierarchy %} {% date_hierarchy cl %} {% endblock %}

80 :

81 : {% block filters %}

82 : {% if cl.has_filters %}

83 :

84 :

{% trans 'Filter' %}

85 : {% for spec in cl.filter_specs %}{% admin_list_filter cl spec %}{% endfor %}

86 :

87 : {% endif %}

88 : {% endblock %}

89 :

Traceback:
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response

1.                     response = callback(request, _callback_args, *_callback_kwargs)
   

   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/contrib/admin/options.py" in wrapper

2.             return self.admin_site.admin_view(view)(_args, *_kwargs)
   

   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view

3.                 response = view_func(request, _args, *_kwargs)
   

   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func

4.     response = view_func(request, _args, *_kwargs)
   

   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/contrib/admin/sites.py" in inner

5.         return view(request, _args, *_kwargs)
   

   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapper

6.         return bound_func(_args, *_kwargs)
   

   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view

7.                 response = view_func(request, _args, *_kwargs)
   

   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/decorators.py" in bound_func

8.             return func(self, _args2, *_kwargs2)
   

   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/contrib/admin/options.py" in changelist_view

9.     ], context, context_instance=context_instance)
   

   File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/shortcuts/init.py" in render_to_response

10. return HttpResponse(loader.render_to_string(_args, *_kwargs), **httpresponse_kwargs)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/loader.py" in render_to_string

11.     return t.render(context_instance)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in render

12.         return self._render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in _render

13.     return self.nodelist.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in render

14.             bits.append(self.render_node(node, context))
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/debug.py" in render_node

15.         result = node.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/loader_tags.py" in render

16.     return compiled_parent._render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in _render

17.     return self.nodelist.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in render

18.             bits.append(self.render_node(node, context))
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/debug.py" in render_node

19.         result = node.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/loader_tags.py" in render

20.     return compiled_parent._render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in _render

21.     return self.nodelist.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in render

22.             bits.append(self.render_node(node, context))
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/debug.py" in render_node

23.         result = node.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/loader_tags.py" in render

24.         result = block.nodelist.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in render

25.             bits.append(self.render_node(node, context))
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/debug.py" in render_node

26.         result = node.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/loader_tags.py" in render

27.         result = block.nodelist.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in render

28.             bits.append(self.render_node(node, context))
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/debug.py" in render_node

29.         result = node.render(context)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/base.py" in render

30.                 dict = func(*args)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/contrib/admin/templatetags/admin_list.py" in date_hierarchy

31.                                             last=models.Max(field_name))
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/models/query.py" in aggregate

32.     return query.get_aggregation(using=self.db)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/models/sql/query.py" in get_aggregation

33.     result = query.get_compiler(using).execute_sql(SINGLE)
    

    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django_mongodb_engine-0.4.0-py2.7.egg/django_mongodb_engine/compiler.py" in execute_sql

34.         result = cursor[0][alias] if alias else counts.pop(0)
    

Exception Type: TemplateSyntaxError at /admin/someapp/someapp/
Exception Value: Caught IndexError while rendering: list index out of range