Comparison for `never` values for boolean options

diff --git a/wcfsetup/install/files/lib/system/option/user/group/BooleanUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/BooleanUserGroupOptionType.class.php
index cf006f816cccf661a198308f5d296ee73fe37f4b..cb8127308d92159d5c36c924f3eb48abb66e121e 100644 (file)
--- a/wcfsetup/install/files/lib/system/option/user/group/BooleanUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/BooleanUserGroupOptionType.class.php
@@ -57,4 +57,19 @@ class BooleanUserGroupOptionType extends BooleanOptionType implements IUserGroup
                
                return $groupValue;
        }
+       
+       /**
+        * @inheritDoc
+        */
+       public function compare($value1, $value2) {
+               if ($value1 == $value2) {
+                       return 0;
+               }
+               else if ($value1 == -1) {
+                       // this is the `never` permission
+                       return -1;
+               }
+               
+               return $value1 ? 1 : -1;
+       }
 }