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, 12 insertions, 0 deletions

diff --git a/src/api/models.py b/src/api/models.py
index 7448ac4..9a7f775 100644
--- a/src/api/models.py
+++ b/src/api/models.py
@@ -217,6 +217,18 @@ class Job(models.Model):
                 tasklist += list(cls.objects.filter(job=self).filter(status=status))
         return tasklist
 
+    def is_fulfilled(self):
+        """
+        This method should return true if all of the job's tasks are done,
+        and false otherwise
+        """
+        my_tasks = self.get_tasklist()
+        for task in my_tasks:
+            if task.status != JobStatus.DONE:
+                return False
+        return True
+
+
     def get_delta(self, status):
         d = {}
         j = {}