Add validation in class serverConfiguration

workflow/engine/classes/class.serverConfiguration.php

@@ -55,11 +55,14 @@ class serverConf {
   private $lanLanguage;
   public $workspaces = array();
   public $rtlLang = array('ar','iw','fa');
+  public $filePath = '';
 
 
   public function __construct() {
+    if (defined('PATH_DATA')) {
       $this->filePath = PATH_DATA . 'srvConf.singleton';
     }
+  }
 
   /**
    * This function is instancing to this object
@@ -107,9 +110,11 @@ class serverConf {
    */
 
   function saveSingleton() {
+    if (defined('PATH_DATA')) {
       $this->filePath = PATH_DATA . 'srvConf.singleton';
       $size = file_put_contents ( $this->filePath, $this->serializeInstance () );
     }
+  }
 
   /**
    * With this is possible to save a property that will be saved in the properties