Allow inner query values to be used in outer query joins. Fixes #340

tests.py

@@ -2726,6 +2726,18 @@ def test_subselect_with_column(self):
  query = outer.order_by(inner.c.name.desc())
  self.assertEqual([u[0] for u in query.tuples()], ['u1', 'u0'])
 
+ def test_subselect_with_join(self):
+ inner = User.select(User.id, User.username).alias('q1')
+ outer = (Blog
+ .select(inner.c.id, inner.c.username)
+ .from_(inner)
+ .join(Comment, on=(inner.c.id == Comment.id)))
+ sql, params = compiler.generate_select(outer)
+ self.assertEqual(sql, (
+ 'SELECT "q1"."id", "q1"."username" FROM ('
+ 'SELECT users."id", users."username" FROM "users" AS users) AS q1 '
+ 'INNER JOIN "comment" AS comment ON ("q1"."id" = comment."id")'))
+
 
 class PrefetchTestCase(ModelTestCase):
  requires = [User, Blog, Comment, Parent, Child, Orphan, ChildPet, OrphanPet, Category]