Signals demo

todo/signals.py

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+import django.dispatch
+from django.dispatch import receiver
+
+from todo.utils import toggle_task_completed
+
+# ### REGISTER SIGNALS ###
+
+# Demonstrates registering a custom signal
+pizza_done = django.dispatch.Signal(providing_args=["toppings", "size", "task_id"])
+
+
+# ### HANDLE SIGNALS ###
+
+# Demonstrates receiving a custom signal
+# (which in turn calls an existing todo function, but could do anything)
+@receiver(pizza_done)
+def toggle_task_handler(sender, **kwargs):
+    print(sender)
+    print(kwargs)
+    task_id = kwargs.get("task_id")
+    results = toggle_task_completed(task_id)
+    print(results)
+
+    print("Request finished!")