Admin integration

Currently, our fields do not yet automatically integrate with Django admin. By default, Django admin tries to use a custom widget for the fields which do not work in our case.

There is a workaround by using a custom admin class, which explicitly defines the widget classes in the background.

from i18nfield.admin import I18nModelAdmin

class BookAdmin(I18nModelAdmin):
    pass

admin.site.register(Book, BookAdmin)