Import Errors with services.py about django-service-objects HOT 5 CLOSED

Why do you need the service object in the model?

If you look at the readme the service object controls and composes the models, not the other way around

from django-service-objects.

Well, I am not sure if I got the concept 100% right but I need to call some business logic every time a model changes. Even within the default admin page. When I look at the official Django documentation they advise people to override the save method. So I ended up with my code as shown above.

The reason why I have chosen to use django-service-objects is that my models start to get too big. That's why I searched for a way to separate my business logic from them.

from django-service-objects.

@thaxy I don't agree 100% with the idea of putting all the logic in the models. If you have to execute business logic everytime the model changes you can probably use signals: https://docs.djangoproject.com/en/2.0/topics/signals/

In the signal you call the service object and that's it.

from django-service-objects.

Thanks for your help. I will give signals a try.

from django-service-objects.

For anyone else stumbling upon this, you can refer to the model lazily to accomplish this. Something like this in your services file:

from django.apps import apps
Inside the service:

BitSensorInformation = apps.get_model(app_label="app_name", model_name="model_name") print(BitSensorInformation.objects.all())

from django-service-objects.