Django: Exposing model method to admin

Example model:

class Contestant(models.Model):
    first_name = models.CharField(max_length=255)
    last_name = models.CharField(max_length=255)
    email = models.EmailField()
    ...

    def send_registration_email(self):
        ...

I'd like to be able to expose this method to the admin so that managers can login and manually call it. I'm thinking about trying property attributes but not sure if that's gonna work. Also is it possible to expose a method like this that takes arguments other than self, possibly related objects from a select or something?开发者_JS百科

You could register it as an admin action.

from django.contrib import admin
from myapp.models import Contestant

def send_mail(modeladmin, request, queryset):
    for obj in queryset:
        obj.send_registration_email()

make_published.short_description = "Resend activation mails for selected users"

class ContestantAdmin(admin.ModelAdmin):
    list_display = [...]
    ordering = [...]
    actions = [send_mail]

admin.site.register(Contestant, ContestantAdmin)