Clear related job templates when inventory is deleted

awx/main/models/inventory.py

@@ -382,6 +382,7 @@ class Inventory(CommonModelNameNotUnique, ResourceMixin):
             raise RuntimeError("Inventory is already pending deletion.")
         self.pending_deletion = True
         self.save(update_fields=['pending_deletion'])
+        self.jobtemplates.clear()
         self.websocket_emit_status('pending_deletion')
         delete_inventory.delay(self.pk)
 

awx/main/tests/functional/api/test_inventory.py

@@ -88,6 +88,20 @@ def test_async_inventory_duplicate_deletion_prevention(delete, get, inventory, a
     assert resp.data['error'] == 'Inventory is already pending deletion.'
 
 
+@pytest.mark.django_db
+def test_async_inventory_deletion_deletes_related_jt(delete, get, job_template, inventory, alice, admin):
+    job_template.inventory = inventory
+    job_template.save()
+    assert job_template.inventory == inventory
+    inventory.admin_role.members.add(alice)
+    resp = delete(reverse('api:inventory_detail', kwargs={'pk': inventory.id}), alice)
+    assert resp.status_code == 202
+
+    resp = get(reverse('api:job_template_detail', kwargs={'pk': job_template.id}), admin)
+    jdata = json.loads(resp.content)
+    assert jdata['inventory'] is None
+
+
 @pytest.mark.parametrize('order_by', ('script', '-script', 'script,pk', '-script,pk'))
 @pytest.mark.django_db
 def test_list_cannot_order_by_unsearchable_field(get, organization, alice, order_by):