Prefetch related objects for contact models.

Alias of price_usd for backwards compatibility.

Process a payment for a bookstore order.

Return the first day of the month after the publication date. NOTE: we can return any day in the following month, since we only use t

Import signals when app is ready.

Register the contact publication statistics report in the reports menu.

Register the URL for the contact publication statistics report.

Reverse migration - no-op. We don't clear notification_sent_at timestamps because we cannot distinguish between timestamps set by this b

Set up test fixtures for query optimization tests.

Set up test data.

Create test data: 1 archive issue with 3 articles, each with 2 authors.

Set up test data.

Create three events: - one that has already ended - one that is currently ongoing - one that is upcoming Ens

Set up Wagtail site and locale for tests.

Set up test data.

Set up test data.

Set up test data.