When a resource is directly accessed rathre than accessed via locateR…

…esource, it is possible that the

parents have not been provisioned. So provision any parents if they are missing.

git-svn-id: https://svn.calendarserver.org/repository/calendarserver/CalendarServer/trunk@2229 e27351fd-9f3e-4f54-a53b-843176b1656c

twistedcaldav/static.py

@@ -411,6 +411,9 @@ def provisionFile(self):
 
         if hasattr(self, "parent"):
             parent = self.parent
+            if not parent.exists() and isinstance(parent, AutoProvisioningFileMixIn):
+                parent.provision()
+
             assert parent.exists(), "Parent %s of %s does not exist" % (parent, self)
             assert parent.isCollection(), "Parent %s of %s is not a collection" % (parent, self)