0002_integrate_w_mercator.py 文件源码

def initialize_slug(apps, schema_editor):
    # We can't import the Person model directly as it may be a newer
    # version than this migration expects. We use the historical version.
    Event = apps.get_model("happenings", "Event")  # NOQA
    for event in Event.objects.all():
        if event.slug is None:
            event.slug = slugify(event.title)
            event.save()