Django ORM filter with two __in

user_11517216 0
Viewed 72

I'm having model with two field. product_ids_list = [1,2,3,4] selling_prices_list = [65, 89, 93] And length of product_ids_list and selling_prices_list are same.

I'm able to perform below ORM filter for one product_id and it's corresponding selling price like this.

product_instances = Product.objects.filter(product_id=product_ids_list[0], selling_price=selling_prices_list[0]).first()

But how to do perform ORM filter with just one DB call with product_ids_list and it's corresponding selling_prices_list.

product_instances = Product.objects.filter(product_id__in=product_ids_list, selling_price__in=selling_prices_list).first() (This isn't working in the expected way)
django-orm django-models django python
1 Answers

If product_id is ForeignKey and selling_price is IntegerField then the filter code would be:

product_instances = Product.objects.filter(product_id__id__in=product_ids_list, selling_price__in=selling_prices_list).first()

As you are supplying list of IDs, we would have to compare product IDs. If we filter with product_id__in, it compares Product object with IDs in the list.

Suggesstion: It would be better to have ForeignKey field name as product instead of product_id to avoid confusion like the above ORM filter.

user_47932160
Related