Fixed issue: #9802 No success message for update

Dev : adding step4b inside the new comfortupdater controller for updates from old versions.

application/controllers/admin/update.php

@@ -395,7 +395,7 @@ public function submitkey()
     /**
     * Update database
     */
-    function db($continue = null)
+    public function db($continue = null)
     {
         Yii::app()->loadHelper("update/update");
         if(isset($continue) && $continue=="yes")
@@ -415,6 +415,16 @@ function db($continue = null)
         $this->_renderWrappedTemplate('update', $aViewUrls, $aData);
     }
 
+    /**
+    * For updates from the old updater. 
+    */
+    public function step4b()
+    {
+        if (!isset(Yii::app()->session['installlstep4b'])) die();
+        $aData=Yii::app()->session['installlstep4b'];
+        unset (Yii::app()->session['installlstep4b']);
+        $this->_renderWrappedTemplate('update/updater/steps', '_old_step4b', $aData);
+    }
 
     /**
      * this function render the update buttons 

application/models/UpdateForm.php

@@ -108,7 +108,7 @@ public function checkUpdateKeyonServer($submittedUpdateKey)
     /**
      * create or update the updatekey to the submited value
      * @param string $submittedUpdateKey the new key id
-     * @return SettingGlobal the new update key if success, CActiveRecord result if error
+     * @return array<string,false|string> the new update key if success, CActiveRecord result if error
      * 
      * TODO : should return same status than server to use the same view render
      */

application/views/admin/update/updater/steps/_old_step4b.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * This is the last view from the old updater. It is used only for updates from old uptader. 
+ */
+?>
+<div class="header ui-widget-header">
+<?php echo sprintf(gT('ComfortUpdate step %s'),'4');?>
+
+</div><div class="updater-background"><br />
+<?php
+if (!isset( Yii::app()->session['updateinfo']))
+{
+	eT('On requesting the update information from limesurvey.org there has been an error:').'<br />';
+	if ($updateinfo['error']==1)
+    {
+        eT('Your update key is invalid and was removed. ').'<br />';
+    }
+    else
+	    eT('On requesting the update information from limesurvey.org there has been an error:').'<br />';
+}
+
+if ($new_files)
+{
+	eT('New files were successfully installed.');
+}
+else
+{
+	eT('There was a problem downloading the update file. Please try to restart the update process.');
+}
+?>
+<br>
+<?php
+if (!$downloaderror)
+{
+	echo sprintf(gT('Buildnumber was successfully updated to %s.'),Yii::app()->session['updateinfo']['toversion']).'<br />';
+    eT('The update is now complete!'); ?> <br /> <?php
+    eT('As a last step you should clear your browser cache now.');?> <br /> <?php
+}
+
+echo "<p><button onclick=\"window.open('".Yii::app()->getController()->createUrl("admin/globalsettings")."', '_top')\" >".gT('Back to main menu'); ?>
+</button></p>
+</div>