fixed issue on schemas.py where if model._meta.get_field(variable) failed model_field was not set to None and would reult in an error
fixed issue on schemas.py where if model._meta.get_field(variable) failed model_field was not set to None and would reult in an error

atombrella/django-rest-framework,ossanna16/django-rest-framework,atombrella/django-rest-framework,jpadilla/django-rest-framework,linovia/django-rest-framework,davesque/django-rest-framework,linovia/django-rest-framework,jpadilla/django-rest-framework,kgeorgy/django-rest-framework,atombrella/django-rest-framework,edx/django-rest-framework,jpadilla/django-rest-framework,edx/django-rest-framework,davesque/django-rest-framework,ossanna16/django-rest-framework,davesque/django-rest-framework,kgeorgy/django-rest-framework,tomchristie/django-rest-framework,edx/django-rest-framework,tomchristie/django-rest-framework,kgeorgy/django-rest-framework,linovia/django-rest-framework,tomchristie/django-rest-framework,ossanna16/django-rest-framework,dmwyatt/django-rest-framework,dmwyatt/django-rest-framework,dmwyatt/django-rest-framework