I have two questions:
This is my code, which is not succe
As per the latest documentation, the correct method to call would be:
Reporter.objects.all().delete()
If you want to remove all the data from all your tables, you might want to try the command python manage.py flush
. This will delete all of the data in your tables, but the tables themselves will still exist.
See more here: https://docs.djangoproject.com/en/1.8/ref/django-admin/