ResolvedOuterRef object has no attribute contains_aggregate.

[Dmitry Mugtasimov]

queryset.annotate(
                has_role=Exists(
                    JobTitle.objects.annotate(
                        title_vector=SearchVector(
                            OuterRef('title'),
                            config=SIMPLE_PG_SEARCH_CONFIGURATION)
                    ).filter(
                        title_vector=SearchQuery(
                            F('name'), config=SIMPLE_PG_SEARCH_CONFIGURATION)
                    )
                )
            )

results in

'ResolvedOuterRef' object has no attribute 'contains_aggregate'
Request Method:	GET
Request URL:	http://127.0.0.1:8000/admin/jobs/job/
Django Version:	2.2.2
Exception Type:	AttributeError
Exception Value:	
'ResolvedOuterRef' object has no attribute 'contains_aggregate'
Exception Location:	/usr/local/lib/python3.7/site-packages/django/db/models/expressions.py in <genexpr>, line 213
Python Executable:	/usr/local/bin/python
Python Version:	3.7.3
Python Path:	
['/code',
 '/code',
 '/usr/local/lib/python37.zip',
 '/usr/local/lib/python3.7',
 '/usr/local/lib/python3.7/lib-dynload',
 '/usr/local/lib/python3.7/site-packages']
Server time:	Mon, 22 Jul 2019 09:22:47 +0000

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/admin/jobs/job/

Django Version: 2.2.2
Python Version: 3.7.3
Installed Applications:
['core',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.sites',
 'django.contrib.postgres',
 'allauth',
 'allauth.account',
 'drf_yasg',
 'rest_auth',
 'rest_auth.registration',
 'rest_framework',
 'rest_framework.authtoken',
 'colorful',
 'gm2m',
 'explorer',
 'allauth.socialaccount',
 'accounts',
 'questions',
 'colleges',
 'geo',
 'jobs',
 'advices',
 'referral']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback:

File "/usr/local/lib/python3.7/site-packages/django/core/handlers/exception.py" in inner
  34.             response = get_response(request)

File "/usr/local/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
  115.                 response = self.process_exception_by_middleware(e, request)

File "/usr/local/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
  113.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/usr/local/lib/python3.7/contextlib.py" in inner
  74.                 return func(*args, **kwds)

File "/usr/local/lib/python3.7/site-packages/django/contrib/admin/options.py" in wrapper
  606.                 return self.admin_site.admin_view(view)(*args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/utils/decorators.py" in _wrapped_view
  142.                     response = view_func(request, *args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  44.         response = view_func(request, *args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/contrib/admin/sites.py" in inner
  223.             return view(request, *args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/utils/decorators.py" in _wrapper
  45.         return bound_method(*args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/utils/decorators.py" in _wrapped_view
  142.                     response = view_func(request, *args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/contrib/admin/options.py" in changelist_view
  1672.             cl = self.get_changelist_instance(request)

File "/usr/local/lib/python3.7/site-packages/django/contrib/admin/options.py" in get_changelist_instance
  744.             sortable_by,

File "/usr/local/lib/python3.7/site-packages/django/contrib/admin/views/main.py" in __init__
  45.         self.root_queryset = model_admin.get_queryset(request)

File "/code/jobs/admin.py" in get_queryset
  76.         return queryset.annotate_with_has_role()

File "/code/jobs/models/job.py" in annotate_with_has_role
  68.                             config=SIMPLE_PG_SEARCH_CONFIGURATION)

File "/usr/local/lib/python3.7/site-packages/django/db/models/manager.py" in manager_method
  82.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/usr/local/lib/python3.7/site-packages/django/db/models/query.py" in annotate
  1059.             if alias in annotations and annotation.contains_aggregate:

File "/usr/local/lib/python3.7/site-packages/django/utils/functional.py" in __get__
  80.         res = instance.__dict__[self.name] = self.func(instance)

File "/usr/local/lib/python3.7/site-packages/django/db/models/expressions.py" in contains_aggregate
  213.         return any(expr and expr.contains_aggregate for expr in self.get_source_expressions())

File "/usr/local/lib/python3.7/site-packages/django/db/models/expressions.py" in <genexpr>
  213.         return any(expr and expr.contains_aggregate for expr in self.get_source_expressions())

Exception Type: AttributeError at /admin/jobs/job/
Exception Value: 'ResolvedOuterRef' object has no attribute 'contains_aggregate'

[Mariusz Felisiak]

Duplicate of #28621.

[Dmitry Mugtasimov]

@felixxm what was the reason for not reopening the duplicate along with closing this issue? I saw the https://code.djangoproject.com/ticket/28621 , but it appears not fixed or not fully fixed in Django 2.2. Just closing this one without reopening the original issue simply hides the issue.

[Mariusz Felisiak]

This fix doesn't qualify for a backport, hence it will be solved in Django 2.2.

[Dmitry Mugtasimov]

Please, resolve my misunderstanding Django 2.2 has already been released and this bug is present at least in Django 2.2.2. What do you mean by "it will be solved in Django 2.2"?

[Mariusz Felisiak]

Ahh, sorry typo, "...it will not be solved in Django 2.2". This patch doesn't qualify for a backport.

[Dmitry Mugtasimov]

I am even more confused now. Do you mean it is decided to keep this bug in Django 2.2 and future versions? If not and patch from https://code.djangoproject.com/ticket/29142 can't be applied then it means that this a different bug that should be tracked separately from https://code.djangoproject.com/ticket/29142 . What do I get wrong?

[Mariusz Felisiak]

First of all, an issue that you described is the same as issue fixed in #29142. That's why I marked this as a duplicate. Secondly, fix is included in Django 3.0 (currently in development) and will not be backport to the Django 2.2 because it doesn't qualify to a backport due to our backport policy.

[Dmitry Mugtasimov]

Thank for clarification. So the only way I can get it fixed is either downgrade to Django 1.11 or upgrade to Django 3.x (because it will not be backported to any Django 2.x series)?

[Mariusz Felisiak]

Django 1.11 is also affected by this issue, you can check our backport policy in ​docs.