rewrite PostgreSQL query to Django ORM

[Artem Bernatskyy]

Hello, how to rewrite this PostgreSQL query to Django ORM with no raw SQL ?


select * from finance_fund order by((select price from finance_nav where date='2016-11-08' and fund_id=finance_fund.id)/(select price from finance_nav where date='2016-11-07' and fund_id=finance_fund.id)) LIMIT 30;

So basically i need to order by division result of two simple queries of backward relations of Foreign key

Thanks in advance !

[Avraham Serour]

I think you would still need some SQL, you could use annotate to add the field with the value of the calculation and then add .order_by() to the queryset

https://docs.djangoproject.com/en/1.10/ref/models/expressions/#raw-sql-expressions

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