Board row ordering, type-derived row colours, and clearer upcoming events

plugins/notifications/models/notification.py

@@ -89,6 +89,13 @@ class NotificationType(db.Model):
     # displaystyle - a banner and a tile row cannot be the same row.
     boardcategory = db.Column(db.String(50), nullable=True)
 
+    # Where this type's row sits on the shopfloor board, low first. A site
+    # decides what leads the screen - recognition above recertification above
+    # the rest - rather than inheriting an alphabetical or by-style accident.
+    # Rows sharing a category sort by the lowest order among their types.
+    boardorder = db.Column(db.Integer, nullable=False,
+                           server_default='100', default=100)
+
     def __repr__(self):
         return f"<NotificationType {self.typename}>"
 
@@ -107,7 +114,8 @@ class NotificationType(db.Model):
             'showemployeephoto': bool(self.showemployeephoto),
             'displaystyle': self.displaystyle or 'standard',
             'gracewindowminutes': int(self.gracewindowminutes or 0),
-            'boardcategory': self.boardcategory or ''
+            'boardcategory': self.boardcategory or '',
+            'boardorder': int(self.boardorder if self.boardorder is not None else 100)
         }