* [bug#56872] Fix bug for update os.

module/host/control.php

@@ -64,7 +64,7 @@ class host extends control
      * @access public
      * @return void
      */
-    public function create(string $osName = 'linux')
+    public function create()
     {
         if($_POST)
         {
@@ -79,7 +79,6 @@ class host extends control
         }
 
         $this->view->title      = $this->lang->host->create;
-        $this->view->osName     = $osName;
         $this->view->rooms      = $this->loadModel('serverroom')->getPairs();
         $this->view->accounts   = $this->loadModel('account')->getPairs();
         $this->view->optionMenu = $this->loadModel('tree')->getOptionMenu(0, 'host');
@@ -95,7 +94,7 @@ class host extends control
      * @access public
      * @return void
      */
-    public function edit(int $id, string $osName = '')
+    public function edit(int $id)
     {
         if($_POST)
         {
@@ -111,7 +110,6 @@ class host extends control
 
         $this->view->title      = $this->lang->host->edit;
         $this->view->host       = $this->host->fetchByID($id);
-        $this->view->osName     = $osName ? $osName : $this->view->host->osName;
         $this->view->rooms      = $this->loadModel('serverroom')->getPairs();
         $this->view->accounts   = $this->loadModel('account')->getPairs();
         $this->view->optionMenu = $this->loadModel('tree')->getOptionMenu(0, 'host');
@@ -195,4 +193,24 @@ class host extends control
         $this->view->type    = $type;
         $this->display();
     }
+
+    /**
+     * Js获取所有的操作系统列表。
+     * Get all os list.
+     *
+     * @param  string $type
+     * @access public
+     * @return void
+     */
+    public function ajaxGetOS(string $type)
+    {
+        $type   = "{$type}List";
+        $osList = $this->lang->host->{$type};
+        if(empty($osList)) return '';
+
+        $osItems = array();
+        foreach($osList as $version => $os) $osItems[] = array('text' => $os, 'value' => $version);
+
+        return print(json_encode($osItems));
+    }
 }