Fix event detail view permissions

aleksis/apps/paweljong/rules.py

-import rules
+import rules;
 
 from aleksis.core.util.predicates import (
     has_any_object,
@@ -65,6 +65,10 @@ view_event_predicate = (
 )
 rules.add_perm("paweljong.view_event_rule", view_event_predicate)
 
+# Event organiser view
+view_event_detail_predicate = (has_person & is_organiser)
+rules.add_perm("paweljong.view_event_detail_rule", view_event_detail_predicate)
+
 # Delete event
 delete_event_predicate = has_person & (
     has_global_perm("paweljong.delete_event") | has_object_perm("paweljong.delete_event")