Update joined table via SQLAlchemy ORM using session.query

Question

Working with MySQL, I\'d like to generate this SQL:

UPDATE tableA
INNER JOIN tableB
ON tableA.some_id = tableB.some_id
SET tableA.foo = 1
WHERE tableB.bar IN (\'         


        

Answer 1

I think I had exactly the same problem. Here is my solution:

query = update(Model).values(field=123)
query = query.where(Model.parent_model_id == ParentModel.id)
query = query.where(ParentModel.grand_parent_id == GrandParentModel.id)
query = query.where(GrandParentModel.name == 'foobar')
session.execute(query)