Fixed app deletion when formation is destroyed.

Author: mboersma

api/models.py

@@ -188,6 +188,8 @@ def build(self):
         return
 
     def destroy(self, *args, **kwargs):
+        for app in self.app_set.all():
+            app.destroy()
         node_tasks = [tasks.destroy_node.si(n) for n in self.node_set.all()]
         layer_tasks = [tasks.destroy_layer.si(l) for l in self.layer_set.all()]
         group(node_tasks).apply_async().join()