登陆权限bug

@@ -24,15 +24,12 @@ if(!function_exists('hasRole')) {
     function hasRole($roles = []) {
         $CI = &get_instance();
         $CI->load->helper('cookie');
-        $login_user = get_cookie('login_user');
-        if($login_user) {
-            $login_user = json_decode($login_user, true);
-            foreach($login_user['roleKeys'] as $v){
-                if(in_array($v, $roles)){
-                    return true;
-                }
+        $login_user = api('system/user/loginUser');
+        foreach($login_user->roleKeys as $v){
+            if(in_array($v, $roles)){
+                return true;
             }
-            return false;
         }
+        return false;
     }
 }