Handling Missing Dynamic Models in Django's app_configs

[rajatb2814]

Currently, models present in packages or modules are not initialized in app_configs of apps within the django.apps module.
This leads to issue where the models are not returned with apps.get_models(). This have implications on some default functions given by ContentType model like model_class()

Proposed Solution:

To address this, I propose an enhancement to dynamically update app_configs with models discovered at runtime. Specifically, we can introduce a mechanism to update app_configs with dynamic models when running the server or executing commands.

Implementation Details:

Retrieve Dynamic Models: Obtain a list of all dynamic models that need to be registered.
Update app_configs: Modify the app_configs dictionary to include these dynamic models. This can be achieved by updating the models attribute of the relevant AppConfig instances.

Example Code Snippet:

from django.apps import apps
app_config = apps.app_configs.get('dynamic_models')
if app_config:
app_config.models.update({
'<model_name>': <model_class>
})