from django.db import models from django.apps import apps from django.contrib.contenttypes.models import ContentType class RelatedPost(models.Model): model_name = models.ForeignKey(ContentType, null=True, on_delete=models.SET_NULL) entry_id = models.IntegerField() title = models.CharField(max_length=200) slug = models.CharField(max_length=50) post_type = models.CharField(null=True, blank=True, max_length=50) pub_date = models.DateTimeField('Date published') class Meta: ordering = ('-model_name', '-pub_date',) get_latest_by = 'pub_date' def __str__(self): if self.model_name.name == 'post': print(self.entry_id) try: p = apps.get_model("posts", "Post").objects.get(id=self.entry_id) except: print(self.title) return "%s - %s" % (p.get_post_type_display(), self.title) else: return "%s - %s" % (self.model_name, self.title)