Rewrite Notification subsystem

In this commit:
 - delete a lot of really bad and / or unused code
 - redesign a much simpler Notification model
 - create and send notifications to the user's inbox on booking start & end
 - migrations
 - emails user when booking is ready and when it ends

Not in this commit:
 - Creating notifications from lab messages
 - warning messages when a booking is about to end
 - creating "summary" notifications when e.g. a booking has been fulfilled by a lab

Change-Id: I69b4dc36c3f2bce76d810106baadeef5a562cc7d
Signed-off-by: Parker Berberian <pberberian@iol.unh.edu>

1 files changed, 0 insertions, 33 deletions

diff --git a/src/notifier/dispatchers.py b/src/notifier/dispatchers.py
deleted file mode 100644
index 1b66b37..0000000
--- a/src/notifier/dispatchers.py
+++ /dev/null
@@ -1,33 +0,0 @@
-##############################################################################
-# Copyright (c) 2018 Sawyer Bergeron, Parker Berberian, and others.
-#
-# All rights reserved. This program and the accompanying materials
-# are made available under the terms of the Apache License, Version 2.0
-# which accompanies this distribution, and is available at
-# http://www.apache.org/licenses/LICENSE-2.0
-##############################################################################
-
-from django.db.models.signals import pre_save
-from django.dispatch import receiver
-from django.contrib import messages
-from django.core.mail import send_mail
-
-class DispatchHandler():
-
-    @receiver(pre_save, sender='notifier.Notifier')
-    def dispatch(sender, instance, *args, **kwargs):
-        try:
-            msg_type = getattr(DispatchHandler, instance.message_type)
-            msg_type(instance)
-        except AttributeError:
-            instance.msg_sent = 'no dispatcher by given name exists: sending by email'
-            email(instance)
-
-    def email(instance):
-        if instance.msg_sent != 'no dispatcher by given name exists: sending by email':
-            instance.msg_sent = 'by email'
-        send_mail(instance.title,instance.content,
-            instance.sender,[instance.user.email_addr], fail_silently=False)
-
-    def webnotification(instance):
-        instance.msg_sent='by web notification'