IntegrityError when loading fixture during django testing

Question

I\'m loading a fixture created with dumpdata, and getting the following exception:

Problem installing fixture \'db_dump.json\': Traceback (most recent call l         


        

Answer 1

Apparently one of the traps for the unwary is that one must exclude contenttypes when exporting fixtures. (Thanks to subsume on #django for the information).

To exclude content types use the -e option when running the dumpdata command.

$./manage.py dumpdata -e contenttypes > initial_data.json

Answer 2

python manage.py dumpdata --exclude=contenttypes --exclude=auth.Permission > initial_data.json