function removePermission($resource, $permission) { SecurityGroup::requirePermission("CHANGE"); $group_id = $this->getId(); $resource_id = $resource->getId(); $permission_id = $permission->getId(); $sql = "DELETE FROM security_group_permission WHERE group_id = ".Database::sqlValue($group_id)." AND resource_id = ".Database::sqlValue($resource_id)." AND permission_id = ".Database::sqlValue($permission_id); Database::query($sql); }