working proof of concept

cookbook/signals.py

@@ -0,0 +1,25 @@
+from django.contrib.postgres.search import SearchVector
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+
+from cookbook.models import Recipe
+
+
+@receiver(post_save, sender=Recipe)
+def update_recipe_search_vector(sender, instance=None, created=False, **kwargs):
+    if not instance:
+        return
+
+    if hasattr(instance, '_dirty'):
+        return
+
+    instance.search_vector = (
+        SearchVector('name', weight='A', config='english')
+        + SearchVector('description', weight='B', config='english')
+    )
+
+    try:
+        instance._dirty = True
+        instance.save()
+    finally:
+        del instance._dirty