Question

1. python manage.py dumpdata modelName > file.json.
2. created an empty database for a user meder on postgres
3. modified pga_hb.conf so that meder can use the database
4. changed the settings in settings.py
5. python manage.py syncdb ( I didnt create a su )

6. attempting to loaddata file.json but it complains that the superuser isn’t there or doesn’t match up…

   Traceback (most recent call last):
   File “manage.py”, line 11, in
   execute_manager(settings)
   File “/srv/python-environments/saltycrane/lib/python2.5/site-packages/django/core/management/init.py”, line 438, in execute_manager
   utility.execute()
   File “/srv/python-environments/saltycrane/lib/python2.5/site-packages/django/core/management/init.py”, line 379, in execute
   self.fetch_command(subcommand).run_from_argv(self.argv)
   File “/srv/python-environments/saltycrane/lib/python2.5/site-packages/django/core/management/base.py”, line 191, in run_from_argv
   self.execute(*args, **options.dict)
   File “/srv/python-environments/saltycrane/lib/python2.5/site-packages/django/core/management/base.py”, line 220, in execute
   output = self.handle(*args, **options)
   File “/srv/python-environments/saltycrane/lib/python2.5/site-packages/django/core/management/commands/loaddata.py”, line 219, in handle
   transaction.commit(using=using)
   File “/srv/python-environments/saltycrane/lib/python2.5/site-packages/django/db/transaction.py”, line 199, in commit
   connection._commit()
   File “/srv/python-environments/saltycrane/lib/python2.5/site-packages/django/db/backends/init.py”, line 32, in _commit
   return self.connection.commit()
   psycopg2.IntegrityError: insert or update on table “bugs_bug” violates foreign key constraint “poster_id_refs_id_89e0243f”
   DETAIL: Key (poster_id)=(1) is not present in table “auth_user”.

Was I not supposed to syncdb? Was I supposed to dumpdata for the generic tables? I still have the db all intact in MySQL but would appreciate any direction.

SIDENOTE: I do have south installed. I did the --initial command a couple days ago. Perhaps I could use south as well?

Answer 1

You have to run:

python manage.py dumpdata > file.json.

This will dump data from all tables(Models).

Running python manage.py dumpdata myapp.modelName > file.json. will only dump data for model modelName in app myapp.

You can also try, this if you only want to dump data for model modelName:

python manage.py dumpdata auth myapp.MyModel > file.json

This way data with Users will also dumped.