Give EMS'es default values for Schedule Locations per Page. Fixes #10868.

docs/changelog/7.x.x.txt

@@ -1,4 +1,5 @@
 7.7.19
+ - fixed #10868: EMS Schedule screen won't display
  - fixed #10857: Wrong entry i18n: Asset_TimeTracking.pm
  - fixed #10839: Ad Sales: Uploaded Images Disappear
  - fixed #10851: Search Template Pagination

docs/upgrades/upgrade_7.7.18-7.7.19.pl

@@ -36,6 +36,7 @@ my $session = start(); # this line required
 addInboxSmsNotificationTemplateIdSetting($session);
 upgradeJSONDatabaseFields($session); 
 moveCalendarFeedsToJSON($session); 
+addEmsScheduleColumnsDefaultValue($session)
 finish($session); # this line required
 
 #----------------------------------------------------------------------------
@@ -47,6 +48,17 @@ finish($session); # this line required
 #    print "DONE!\n" unless $quiet;
 #}
 
+#----------------------------------------------------------------------------
+sub addEmsScheduleColumnsDefaultValue {
+    my $session = shift;
+    print "\tAdding default value for EMS Schedule Columns per Page..." unless $quiet;
+
+    $session->db->write( 'UPDATE TABLE EventManagementSystem set scheduleColumnsPerPage=5 where scheduleColumnsPerPage IS NULL' );
+
+    print "Done\n" unless $quiet;
+
+}
+
 sub addInboxSmsNotificationTemplateIdSetting {
     my $session = shift;
     print "\tAdding inboxSmsNotificationTemplateId setting... " unless $quiet;