Adding Counters to Models in the Django Admin Panel

models.py

from django.utils.functional import lazy
from django.utils.translation import ugettext_lazy as _
 
from knowledge.models import Article
 
 
class ModeratedArticle(Article):
 
    class Meta:
        proxy = True
        verbose_name = _('Article')
        verbose_name_plural = lazy(lambda: _('Articles ({})').format(ModeratedArticle.objects.to_moderation().count()), str)()