yunohost_glpi_singlesignon/inc/provider_user.class.php

<?php

class PluginSinglesignonProvider_User extends CommonDBRelation {

   // From CommonDBRelation
   static public $itemtype_1   = 'PluginSinglesignonProvider';
   static public $items_id_1   = 'plugin_singlesignon_providers_id';

   static public $itemtype_2 = 'User';
   static public $items_id_2 = 'users_id';
}