Resolve "Löschen eines Studienganges... I18N - Fehler"

Closes #555

Merge request studip/studip!269

lib/classes/I18NStringDatafield.php

@@ -19,6 +19,18 @@
 class I18NStringDatafield extends I18NString
 {
 
+    /**
+     * Sets the metadata (database info object_id) of this i18n datafield.
+     *
+     * @param array $metadata Database info for object_id.
+     */
+    public function setMetadata($metadata)
+    {
+        if (is_null($metadata['table'])) {
+            $this->metadata = $metadata;
+        }
+    }
+
     /**
      * Return an array containg the text in all additional languages.
      *
@@ -47,7 +59,8 @@ class I18NStringDatafield extends I18NString
                 . "WHERE `datafield_id` = ? "
                 . "AND `range_id` = ? "
                 . "AND `sec_range_id` = ? "
-                    . "AND `lang` <> ?", $object_id);
+                . "AND `lang` <> ''",
+                [$object_id[0], $object_id[1], $object_id[2]]);
             $i18nSQL = $db->prepare("INSERT INTO `datafields_entries` "
                     . "(`datafield_id`, `range_id`, `sec_range_id`, `content`, `lang`) "
                     . "VALUES (?,?,?,?,?)");
@@ -81,7 +94,6 @@ class I18NStringDatafield extends I18NString
                     . "AND `sec_range_id` = ? "
                     . "AND `lang` = ''", $object_id);
         }
-      //  var_dump($object_id, $base); exit;
         $table = null;
         $field = null;
         return new self($base, self::fetchDataForField($object_id, $table, $field),

lib/models/ModuleManagementModel.php

@@ -810,7 +810,7 @@ abstract class ModuleManagementModel extends SimpleORMap
      * @return string The currently selected language.
      */
     public static final function getLanguage()
-    { return 'DE';
+    {
         $language = self::$language ?: $GLOBALS['MVV_LANGUAGES']['default'];
         return $language;
     }