# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1443472494 -7200
# Node ID 94cff57d56a91c498282caca517a9ca2f5d33a40
# Parent  ef83320e1a3796e42058e6a18386e12a5949bd4f
Handle editing operations in the absence of a main period.

diff -r ef83320e1a37 -r 94cff57d56a9 imipweb/event.py
--- a/imipweb/event.py	Mon Sep 28 22:16:16 2015 +0200
+++ b/imipweb/event.py	Mon Sep 28 22:34:54 2015 +0200
@@ -833,7 +833,14 @@
         start = self.get_date_control_values("dtstart")
         end = self.get_date_control_values("dtend")
 
-        return FormPeriod(start, end, dtend_enabled, dttimes_enabled, self.get_tzid())
+        period = FormPeriod(start, end, dtend_enabled, dttimes_enabled, self.get_tzid())
+
+        # Handle absent main period details.
+
+        if not period.get_start():
+            return self.get_stored_main_period()
+        else:
+            return period
 
     def get_recurrences_from_page(self):