/**
  * @param int $from
  * @param int $to
  *
  * @return string
  */
 public function humanizedChanges($from, $to)
 {
     if (!$from) {
         return _t('SilverStripe\\AssetAdmin\\Controller\\AssetAdmin.UPLOADEDFILE', "Uploaded file");
     }
     $fromRecord = Versioned::get_version($this->owner->class, $this->owner->ID, $from);
     $toRecord = Versioned::get_version($this->owner->class, $this->owner->ID, $to);
     $diff = new DataDifferencer($fromRecord, $toRecord);
     $changes = $diff->changedFieldNames();
     $k = array_search('LastEdited', $changes);
     if ($k !== false) {
         unset($changes[$k]);
     }
     $output = array();
     foreach ($changes as $change) {
         $human = $change;
         if ($change == "ParentID") {
             // updated folder ID
             $human = _t('SilverStripe\\AssetAdmin\\Controller\\AssetAdminFile.MOVEDFOLDER', "Moved file");
         } elseif ($change == 'Title') {
             $human = _t('SilverStripe\\AssetAdmin\\Controller\\AssetAdminFile.RENAMEDTITLE', "Updated title to ") . $fromRecord->Title;
         } elseif ($change == 'Name') {
             $human = _t('SilverStripe\\AssetAdmin\\Controller\\AssetAdminFile.RENAMEDFILE', "Renamed file to ") . $fromRecord->Filename;
         } elseif ($change == 'File') {
             // check to make sure the files are actually different
             if ($fromRecord->getHash() != $toRecord->getHash()) {
                 $human = _t('SilverStripe\\AssetAdmin\\Controller\\AssetAdminFile.RENAMEDFILE', "Replaced file");
             } else {
                 $human = false;
             }
         } else {
             $human = false;
         }
         if ($human) {
             $output[] = $human;
         }
     }
     return implode(", ", $output);
 }