fix undefined constants, refs #3239

Merge request studip/studip!2199

lib/ilias_interface/IliasSoap.class.php

@@ -377,18 +377,9 @@ class IliasSoap extends StudipSoapClient
          if ($user_id != "")
             $param["user_id"] = $user_id;
         $result = $this->call('searchObjects', $param);
-        if ($result != false)
+        if ($result)
         {
-            //$objects = $this->parseXML($result);
-            $objects = $this->parseIliasObject($result);
-//            var_dump($objects);
-            return $objects;
-            if (count(objects)){
-                foreach($all_objects as $one_object){
-                    $ret[$one_object['ref_id']] = $one_object;
-                }
-                return $ret;
-            }
+            return $this->parseIliasObject($result);
         }
         return false;
 

lib/models/Courseware/StructuralElement.php

@@ -177,10 +177,10 @@ class StructuralElement extends \SimpleORMap implements \PrivacyObject
     {
         if (is_null($image)) {
             $this->image_id = null;
-        } elseif (is_a($image, \FileRef)) {
+        } elseif (is_a($image, \FileRef::class)) {
             $this->image_id = $image->getId();
             $this->image_type = \FileRef::class;
-        } elseif (is_a($image, \StockImage)) {
+        } elseif (is_a($image, \StockImage::class)) {
             $this->image_id = $image->getId();
             $this->image_type = \StockImage::class;
         } else {
@@ -1167,6 +1167,6 @@ SQL;
         if ($structuralElements) {
             $storage->addTabularData(_('Courseware Seiten'), 'cw_structural_elements', $structuralElements);
         }
-        
+
     }
 }