Issue with apploading in Django 1.7

[antonagestam]

Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
    utility.execute()
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/core/management/__init__.py", line 354, in execute
    django.setup()
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/__init__.py", line 21, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/apps/registry.py", line 108, in populate
    app_config.import_models(all_models)
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/apps/config.py", line 197, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Users/antonagestam/.virtualenvs/mcr-api/mcr/apps/like/models.py", line 21, in <module>
    connect_counter('like_count', Like.outfit)
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django_counter_field/counter.py", line 121, in connect_counter
    return Counter(counter_name, foreign_field, is_in_counter)
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django_counter_field/counter.py", line 30, in __init__
    self.connect()
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django_counter_field/counter.py", line 64, in connect
    self.validate()
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django_counter_field/counter.py", line 38, in validate
    self.counter_name
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/db/models/options.py", line 416, in get_field_by_name
    cache = self.init_name_map()
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/db/models/options.py", line 445, in init_name_map
    for f, model in self.get_all_related_m2m_objects_with_model():
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/db/models/options.py", line 563, in get_all_related_m2m_objects_with_model
    cache = self._fill_related_many_to_many_cache()
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/db/models/options.py", line 577, in _fill_related_many_to_many_cache
    for klass in self.apps.get_models():
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/utils/lru_cache.py", line 101, in wrapper
    result = user_function(*args, **kwds)
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/apps/registry.py", line 168, in get_models
    self.check_models_ready()
  File "/Users/antonagestam/.virtualenvs/mcr-api/lib/python2.7/site-packages/django/apps/registry.py", line 131, in check_models_ready
    raise AppRegistryNotReady("Models aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet.

[antonagestam]

This might be solved by putting the call to connect_counter in some other place though.

[benosman]

Any ideas on where to put the call?

I was thinking AppConfig.ready() might be a good place.

[jneight]

Yes, the correct place is inside the ready() function, this function gets called only when all the models are ready, see https://docs.djangoproject.com/en/dev/ref/applications/#django.apps.AppConfig.ready