python - Django 1.8: How use Model from different application? -

my problem want create common-application (this can standard python module) e.g.:

and create application_1 , application_2 models common-application being used e.g.:

application_1
- model_1
- model_2
- model_4 - app specific additional model
application_2
- model_1
- model_2
- model_3

really don't know how models.py , apps.py should like.. :/

is possible ?

ps. , if want write database_router split applications between 2 databases makes problem impossible solve ?

you can implement common models in common_application's models.py file abstract model, adding following model's class:

class meta:     abstract = true

then, in other applications can import common models so:

from common_application.models import model_1, model_2, model_3

and instantiate model classes derive abstract model class:

class model_1a(model_1):

more details on model class inheritance can found here

Call