(self)
| 2598 | eq_(sess.execute(select(func.count("*")).select_from(c)).scalar(), 0) |
| 2599 | |
| 2600 | def test_cascade_delete(self): |
| 2601 | a, A, B, b, atob = ( |
| 2602 | self.tables.a, |
| 2603 | self.classes.A, |
| 2604 | self.classes.B, |
| 2605 | self.tables.b, |
| 2606 | self.tables.atob, |
| 2607 | ) |
| 2608 | |
| 2609 | self.mapper_registry.map_imperatively( |
| 2610 | A, |
| 2611 | a, |
| 2612 | properties={ |
| 2613 | "bs": relationship( |
| 2614 | B, |
| 2615 | secondary=atob, |
| 2616 | cascade="all, delete-orphan", |
| 2617 | single_parent=True, |
| 2618 | ) |
| 2619 | }, |
| 2620 | ) |
| 2621 | self.mapper_registry.map_imperatively(B, b) |
| 2622 | |
| 2623 | sess = fixture_session() |
| 2624 | a1 = A(data="a1", bs=[B(data="b1")]) |
| 2625 | sess.add(a1) |
| 2626 | sess.flush() |
| 2627 | |
| 2628 | sess.delete(a1) |
| 2629 | sess.flush() |
| 2630 | eq_( |
| 2631 | sess.execute(select(func.count("*")).select_from(atob)).scalar(), 0 |
| 2632 | ) |
| 2633 | eq_(sess.execute(select(func.count("*")).select_from(b)).scalar(), 0) |
| 2634 | eq_(sess.execute(select(func.count("*")).select_from(a)).scalar(), 0) |
| 2635 | |
| 2636 | def test_single_parent_error(self): |
| 2637 | a, A, B, b, atob = ( |
nothing calls this directly
no test coverage detected