Database migration operations¶
All of these operations are available from
the django.contrib.postgres.operations
module.
Creating extension using migrations¶
You can create a PostgreSQL extension in your database using a migration file. This example creates an hstore extension, but the same principles apply for other extensions.
Set up the hstore extension in PostgreSQL before the first CreateModel
or AddField
operation that involves
HStoreField
by adding a migration with
the HStoreExtension
operation.
For example:
from django.contrib.postgres.operations import HStoreExtension
class Migration(migrations.Migration):
...
operations = [
HStoreExtension(),
...
]
Creating the extension requires a database user with superuser privileges.
If the Django database user doesn’t have superuser privileges, you’ll have
to create the extension outside of Django migrations with a user that has
the appropriate privileges. In that case, connect to your Django database and
run the query CREATE EXTENSION IF NOT EXISTS hstore;
.