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doableware / djongo

Django and MongoDB database connector
https://www.djongomapper.com
GNU Affero General Public License v3.0
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EmbeddedField doesn't work on Django3 #404

Open PoloPing opened 4 years ago

PoloPing commented 4 years ago

One line description of the issue

EmbeddedField doesn't work on Django3

Python script

python manage.py runserver

from user.models import User
from platform_backend.libs.models import ModelSerializeMixin

from djongo import models
from django.utils.timezone import now

class Blog(models.Model, ModelSerializeMixin):
    name = models.CharField(max_length=100)
    tagline = models.TextField()

    objects = models.DjongoManager()

    class Meta:
        abstract = True

    def __str__(self):
        return str(self.name) + "-" + str(self.tagline)

class Entry(models.Model, ModelSerializeMixin):
    author = models.ForeignKey(User, on_delete=models.DO_NOTHING,
                               related_name='user_entries')
    blog = models.EmbeddedField(
        model_container=Blog,
    )

    headline = models.CharField(max_length=255)
    created_at = models.DateTimeField(default=now)
    objects = models.DjongoManager()

Traceback

Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 377, in execute
    django.setup()
  File "/usr/local/lib/python3.8/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/local/lib/python3.8/site-packages/django/apps/registry.py", line 114, in populate
    app_config.import_models()
  File "/usr/local/lib/python3.8/site-packages/django/apps/config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/local/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/usr/src/app/mongo_test_2/models.py", line 21, in <module>
    class Entry(models.Model, ModelSerializeMixin):
  File "/usr/src/app/mongo_test_2/models.py", line 24, in Entry
    blog = models.EmbeddedField(
  File "/usr/local/lib/python3.8/site-packages/djongo/models/fields.py", line 225, in __init__
    super().__init__(model_container, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/djongo/models/fields.py", line 87, in __init__
    self._validate_container()
  File "/usr/local/lib/python3.8/site-packages/djongo/models/fields.py", line 91, in _validate_container
    for field in self.model_container._meta.get_fields():
  File "/usr/local/lib/python3.8/site-packages/django/db/models/options.py", line 750, in get_fields
    return self._get_fields(include_parents=include_parents, include_hidden=include_hidden)
  File "/usr/local/lib/python3.8/site-packages/django/db/models/options.py", line 810, in _get_fields
    all_fields = self._relation_tree
  File "/usr/local/lib/python3.8/site-packages/django/utils/functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.8/site-packages/django/db/models/options.py", line 723, in _relation_tree
    return self._populate_directed_relation_graph()
  File "/usr/local/lib/python3.8/site-packages/django/db/models/options.py", line 694, in _populate_directed_relation_graph
    all_models = self.apps.get_models(include_auto_created=True)
  File "/usr/local/lib/python3.8/site-packages/django/apps/registry.py", line 178, in get_models
    self.check_models_ready()
  File "/usr/local/lib/python3.8/site-packages/django/apps/registry.py", line 140, in check_models_ready
    raise AppRegistryNotReady("Models aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet.
Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.8/site-packages/django/core/management/__init__.py", line 377, in execute
    django.setup()
  File "/usr/local/lib/python3.8/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/local/lib/python3.8/site-packages/django/apps/registry.py", line 114, in populate
    app_config.import_models()
  File "/usr/local/lib/python3.8/site-packages/django/apps/config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/local/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/usr/src/app/mongo_test_2/models.py", line 21, in <module>
    class Entry(models.Model, ModelSerializeMixin):
  File "/usr/src/app/mongo_test_2/models.py", line 24, in Entry
    blog = models.EmbeddedField(
  File "/usr/local/lib/python3.8/site-packages/djongo/models/fields.py", line 225, in __init__
    super().__init__(model_container, *args, **kwargs)
  File "/usr/local/lib/python3.8/site-packages/djongo/models/fields.py", line 87, in __init__
    self._validate_container()
  File "/usr/local/lib/python3.8/site-packages/djongo/models/fields.py", line 91, in _validate_container
    for field in self.model_container._meta.get_fields():
  File "/usr/local/lib/python3.8/site-packages/django/db/models/options.py", line 750, in get_fields
    return self._get_fields(include_parents=include_parents, include_hidden=include_hidden)
  File "/usr/local/lib/python3.8/site-packages/django/db/models/options.py", line 810, in _get_fields
    all_fields = self._relation_tree
  File "/usr/local/lib/python3.8/site-packages/django/utils/functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/usr/local/lib/python3.8/site-packages/django/db/models/options.py", line 723, in _relation_tree
    return self._populate_directed_relation_graph()
  File "/usr/local/lib/python3.8/site-packages/django/db/models/options.py", line 694, in _populate_directed_relation_graph
    all_models = self.apps.get_models(include_auto_created=True)
  File "/usr/local/lib/python3.8/site-packages/django/apps/registry.py", line 178, in get_models
    self.check_models_ready()
  File "/usr/local/lib/python3.8/site-packages/django/apps/registry.py", line 140, in check_models_ready
    raise AppRegistryNotReady("Models aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet.

Enviroment

Django ==3.0.5 Python ==3.8.2 Djongo ==1.3.2

sv8083 commented 4 years ago

There's a bug in current release. Downgrade to Djongo==1.3.1