tickets: Ensure cdata materialized view exists

include/staff/tickets.inc.php

@@ -4,6 +4,9 @@ $tickets = TicketModel::objects();
 $clear_button = false;
 $view_all_tickets = $date_header = $date_col = false;
 
+// Make sure the cdata materialized view is available
+TicketForm::ensureDynamicDataView();
+
 // Figure out REFRESH url — which might not be accurate after posting a
 // response
 list($path,) = explode('?', $_SERVER['REQUEST_URI'], 2);