Question

I am having trouble with the following reverse FK lookup:

class OrderItem(models.Model):
    order = models.ForeignKey(Order, related_name='items')
    title = models.ForeignKey(Title, related_name='order_items')

class OrderItemDelivery(models.Model):
    order_item = models.ForeignKey(OrderItem, related_name='deliveries')
    stage = models.CharField(max_length=20)

How would I do the following: OrderItem.objects.filter(order_item_delivery__stage='Beginning') ?

Answer 1

As you’ve specified deliveries as the related_name, use it:

OrderItem.objects.filter(deliveries__stage='Beginning')