[https://jira.mongodb.org/browse/INTPYTHON-535](https://JIRA ISSUE CREATED)
PS: I tried using the mongodb backend to an ongoing django project, but was advised to get started from the template(at least for now). I still want to try the mongodb backend and do some benchmarks on performance as compared to postgres.
I got these two issues, maybe the team can help address, but I’m pretty sure I may have missed a step or something from the official guideline(feel free to criticize my feedback)
settings.DATABASE miss the “name” value
After starting the project from the quickstart template, there’s an error on running migrations:
Traceback (most recent call last):
File "/Users/ca/cdc/django-mongodb/quickstart/./manage.py", line 22, in <module>
main()
File "/Users/ca/cdc/django-mongodb/quickstart/./manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/__init__.py", line 442, in execute_from_command_line
utility.execute()
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/__init__.py", line 436, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/base.py", line 413, in run_from_argv
self.execute(*args, **cmd_options)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/base.py", line 459, in execute
output = self.handle(*args, **options)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/base.py", line 107, in wrapper
res = handle_func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/commands/makemigrations.py", line 158, in handle
loader.check_consistent_history(connection)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/migrations/loader.py", line 313, in check_consistent_history
applied = recorder.applied_migrations()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/migrations/recorder.py", line 89, in applied_migrations
if self.has_table():
^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/migrations/recorder.py", line 64, in has_table
tables = self.connection.introspection.table_names(cursor)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django_mongodb_backend/introspection.py", line 10, in table_names
return sorted([x["name"] for x in self.connection.database.list_collections()])
^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django_mongodb_backend/base.py", line 155, in __getattr__
self.connect()
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/backends/base/base.py", line 255, in connect
conn_params = self.get_connection_params()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django_mongodb_backend/base.py", line 166, in get_connection_params
raise ImproperlyConfigured('settings.DATABASES is missing the "NAME" value.')
django.core.exceptions.ImproperlyConfigured: settings.DATABASES is missing the "NAME" value.
that I quickly fixed:
DATABASES = {
"name": "default",
"default": django_mongodb_backend.parse_uri("mongodb+srv://chrisdevcode:<pass>@djangomongo.oybyx.mongodb.net/?retryWrites=true&w=majority&appName=djangomongo"),
}
`
# AttributeError: 'str' object has no attribute 'setdefault' in django-mongodb Integration
On running the migrations again(after creating an app, from the starter template), I get the error:
```bash
(mongobackend) ➜ quickstart git:(main) ✗ ./manage.py migrate
Traceback (most recent call last):
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/asgiref/local.py", line 89, in _lock_storage
asyncio.get_running_loop()
RuntimeError: no running event loopDuring handling of the above exception, another exception occurred:Traceback (most recent call last):
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/connection.py", line 58, in __getitem__
return getattr(self._connections, alias)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/asgiref/local.py", line 118, in __getattr__
return getattr(storage, key)
^^^^^^^^^^^^^^^^^^^^^
AttributeError: '_thread._local' object has no attribute 'default'During handling of the above exception, another exception occurred:Traceback (most recent call last):
File "/Users/ca/cdc/django-mongodb/quickstart/./manage.py", line 22, in <module>
main()
File "/Users/ca/cdc/django-mongodb/quickstart/./manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/__init__.py", line 442, in execute_from_command_line
utility.execute()
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/__init__.py", line 416, in execute
django.setup()
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/apps/registry.py", line 116, in populate
app_config.import_models()
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/apps/config.py", line 269, in import_models
self.models_module = import_module(models_module_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/importlib/__init__.py", line 90, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 999, in exec_module
File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
File "/Users/ca/cdc/django-mongodb/quickstart/sample_mflix/models.py", line 4, in <module>
from django_mongodb_backend.models import EmbeddedModel
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django_mongodb_backend/models.py", line 6, in <module>
class EmbeddedModel(models.Model):
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/models/base.py", line 143, in __new__
new_class.add_to_class("_meta", Options(meta, app_label))
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/models/base.py", line 371, in add_to_class
value.contribute_to_class(cls, name)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/models/options.py", line 231, in contribute_to_class
self.db_table, connection.ops.max_name_length()
^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/connection.py", line 15, in __getattr__
return getattr(self._connections[self._alias], item)
~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/connection.py", line 60, in __getitem__
if alias not in self.settings:
^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/functional.py", line 47, in __get__
res = instance.__dict__[self.name] = self.func(instance)
^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/connection.py", line 45, in settings
self._settings = self.configure_settings(self._settings)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/utils.py", line 160, in configure_settings
conn.setdefault("ATOMIC_REQUESTS", False)
^^^^^^^^^^^^^^^
AttributeError: 'str' object has no attribute 'setdefault'
(mongobackend) ➜ quickstart git:(main) ✗ ./manage.py makemigration
Traceback (most recent call last):
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/asgiref/local.py", line 89, in _lock_storage
asyncio.get_running_loop()
RuntimeError: no running event loopDuring handling of the above exception, another exception occurred:Traceback (most recent call last):
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/connection.py", line 58, in __getitem__
return getattr(self._connections, alias)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/asgiref/local.py", line 118, in __getattr__
return getattr(storage, key)
^^^^^^^^^^^^^^^^^^^^^
AttributeError: '_thread._local' object has no attribute 'default'During handling of the above exception, another exception occurred:Traceback (most recent call last):
File "/Users/ca/cdc/django-mongodb/quickstart/./manage.py", line 22, in <module>
main()
File "/Users/ca/cdc/django-mongodb/quickstart/./manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/__init__.py", line 442, in execute_from_command_line
utility.execute()
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/core/management/__init__.py", line 416, in execute
django.setup()
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/apps/registry.py", line 116, in populate
app_config.import_models()
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/apps/config.py", line 269, in import_models
self.models_module = import_module(models_module_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/importlib/__init__.py", line 90, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 999, in exec_module
File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
File "/Users/ca/cdc/django-mongodb/quickstart/sample_mflix/models.py", line 4, in <module>
from django_mongodb_backend.models import EmbeddedModel
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django_mongodb_backend/models.py", line 6, in <module>
class EmbeddedModel(models.Model):
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/models/base.py", line 143, in __new__
new_class.add_to_class("_meta", Options(meta, app_label))
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/models/base.py", line 371, in add_to_class
value.contribute_to_class(cls, name)
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/models/options.py", line 231, in contribute_to_class
self.db_table, connection.ops.max_name_length()
^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/connection.py", line 15, in __getattr__
return getattr(self._connections[self._alias], item)
~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/connection.py", line 60, in __getitem__
if alias not in self.settings:
^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/functional.py", line 47, in __get__
res = instance.__dict__[self.name] = self.func(instance)
^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/utils/connection.py", line 45, in settings
self._settings = self.configure_settings(self._settings)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/mongobackend/lib/python3.12/site-packages/django/db/utils.py", line 160, in configure_settings
conn.setdefault("ATOMIC_REQUESTS", False)
^^^^^^^^^^^^^^^
AttributeError: 'str' object has no attribute 'setdefault'
```
I honestly don't know how to tackle that(may need more time to go through the package source to understand)