Django ORM join without foreign keys and without raw queries

Question

A

class AKeywords(models.Model):
    id = models.AutoField(primary_key=True, db_column=\"kw_id\")
    word = models.CharField(max_length=200)
    ...

             


        

Answer 1

The current way to do this is with a Subquery and an OuterRef:

Example taken from my code. Store and StoreInformation have a field called store_number.

from django.db.models import Subquery, OuterRef

Store.objects.annotate(timezone=Subquery(
      StoreInformation.objects.filter(store_number=OuterRef('store_number')).values('store_timezone')[:1]
))

This is joining to add a field called store_timezone.