* fix for guest login.

db/update4.0.beta2.sql

@@ -1,2 +1,3 @@
 ALTER TABLE  `zt_build` CHANGE  `desc`  `desc` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;
 ALTER TABLE  `zt_group` ADD  `role` CHAR( 10 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;
+UPDATE `zt_group` SET `role` = 'guest' WHERE `name` = 'guest';

module/common/model.php

@@ -86,6 +86,7 @@ class commonModel extends model
             $user->id         = 0;
             $user->account    = 'guest';
             $user->realname   = 'guest';
+            $user->role       = 'guest';
             $user->rights     = $this->loadModel('user')->authorize('guest');
             $this->session->set('user', $user);
             $this->app->user = $this->session->user;

module/user/model.php

@@ -515,7 +515,7 @@ class userModel extends model
         if($account == 'guest')
         {
             $sql = $this->dao->select('module, method')->from(TABLE_GROUP)->alias('t1')->leftJoin(TABLE_GROUPPRIV)->alias('t2')
-                ->on('t1.id = t2.group')->where('t1.name')->eq('guest');
+                ->on('t1.id = t2.group')->where('t1.role')->eq('guest');
         }
         else
         {