def migrate_datahub_accounts(*args, **kwargs): old_users = DataHubLegacyUser.objects.all() apps = App.objects.exclude(legacy_user=None) users = User.objects.all() print("Old model users: {0} New model users: {1}".format( len(old_users), len(users))) print("Apps: {0}".format(len(apps))) new_users = [] # Throw out all of these changes if it fails somehow with transaction.atomic(): for old_user in old_users: try: User.objects.get(username=old_user.username) except User.DoesNotExist: new_user = User.objects.create_user( username=old_user.username, email=old_user.email) new_users.append(new_user) DataHubManager.create_user_data_folder( repo_base=old_user.username) for app in apps: username = app.legacy_user.username print("{0} legacy_user is {1}".format( app.app_id, username)) if app.user is None: new_user = User.objects.get(username=username) app.user = new_user app.save(update_fields=['user']) print(" user is {0}".format(app.user.username)) print("Migrated Users: {0}".format(new_users)) # grant existing users access to the dh_public role, # which is used to share select-only repos superuser_username = settings.DATABASES['default']['USER'] superuser_password = settings.DATABASES['default']['PASSWORD'] users = User.objects.exclude(username__in=[settings.PUBLIC_ROLE, settings.OAUTH2_APP_OWNER]) pg = PGBackend(superuser_username, superuser_password) for user in users: query = 'GRANT %s to %s' % (settings.PUBLIC_ROLE, user.username) print(query) try: pg.execute_sql(query) except ValueError: print('Skipped %s due to missing role.' % user.username) pass pg.close_connection() print 'grants complete'