Polymorphic Scrape Method Example

gistfile1.py

from django.db import models
from django.contrib.contenttypes.models import ContentType

from polymorphic.models import PolymorphicLink

class SomeClass(models.Model):
    """Some attributes"""
    def _get_features(self):
        ct = ContentType.objects.get(app_label=self._meta.app_label, name=self._meta.verbose_name)
        features_set = PolymorphicLink.objects.filter(parent_content_type=ct, parent_object_id=self.pk)
        features = []
        for feature in features_set:
            this_ct = ContentType.objects.get(app_label=feature.content_type.app_label, model=feature.content_type.model)
            thing = this_ct.get_object_for_this_type(pk=feature.object_id)
            features.append(thing)
        
        return features
    
    features = property(_get_features)