Handle assets that can't be instanciated in ExtendCalendarRecurrences. Fixes bug #11956.

docs/changelog/7.x.x.txt

@@ -4,6 +4,7 @@
  - fixed #11952: Navigation template help error
  - fixed #11951: Privacy setting of new profile field
  - fixed #11947: PayPal does not register in-state sales taxes
+ - fixed #11956: ExtendCalenderRecurrence bug
 
 7.10.4
  - Added WebGUI::Fork api

lib/WebGUI/Workflow/Activity/ExtendCalendarRecurrences.pm

@@ -165,6 +165,10 @@ sub processRecurrence {
     my ( $self, $recurId, $timeLimit ) = @_;
     my $eventId = $self->findLastEventId($recurId);
     my $event   = WebGUI::Asset::Event->new( $self->session, $eventId );
+    if (! $event) {
+        $self->session->log->warn("Unable to instanciate event with assetId $eventId");
+        return 0;
+    }
     my $recur   = $event->getRecurrence;
 
     my $start   = $event->getDateTimeStart->truncate(to => 'day');

t/Workflow/Activity/ExtendCalendarRecurrences.t

@@ -97,7 +97,7 @@ my $sql = q{
 
 my $dates = $session->db->buildArrayRefOfHashRefs($sql, [$calendar->getId]);
 # 3 years at every other month (6 times) plus the one we started with
-is(@$dates, 19) or diag Dumper $dates;
+is(@$dates, 19, 'created right number of dates') or diag Dumper $dates;
 
 done_testing;