Update tempmon UI now that enabled flags are really datetime in DB

tailbone/forms/types.py

@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2018 Lance Edgar
+#  Copyright © 2010-2019 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -27,6 +27,7 @@ Form Schema Types
 from __future__ import unicode_literals, absolute_import
 
 import re
+import datetime
 
 import six
 
@@ -63,6 +64,18 @@ class JQueryTime(colander.Time):
         return colander.timeparse(cstruct, formats[0])
 
 
+class DateTimeBoolean(colander.Boolean):
+    """
+    Schema type which presents the user with a "boolean" whereas the underlying
+    node is really a datetime (assumed to be "naive" UTC, and allow nulls).
+    """
+
+    def deserialize(self, node, cstruct):
+        value = super(DateTimeBoolean, self).deserialize(node, cstruct)
+        if value: # else return None
+            return datetime.datetime.utcnow()
+
+
 class GPCType(colander.SchemaType):
     """
     Schema type for product GPC data.