How to get a model object using model name string in Django

Question

Desciption:

I have a generic function

def gen(model_name,model_type): 
      objects = model_name.objects.all()
      for object in objects:
          object.model_type = Null      (Or some activity)
          object.save()

How Can I achieve the above ? Is it possible?

Answer 1

I would use get_model:

from django.db.models import get_model

mymodel = get_model('some_app', 'SomeModel')

Answer 2

As of Django 1.7 the django.db.models.loading is deprecated (to be removed in 1.9) in favor of the the new application loading system. The 1.7 docs give us the following instead:

$ python manage.py shell
Python 2.7.6 (default, Mar  5 2014, 10:59:47)
>>> from django.apps import apps
>>> User = apps.get_model(app_label='auth', model_name='User')
>>> print User
<class 'django.contrib.auth.models.User'>
>>>