/**
  * @copydoc PKPManageFileApiHandler::removeFileIndex()
  */
 function removeFileIndex($submission, $submissionFile)
 {
     // update the submission's search index if this was a proof file
     if ($submissionFile->getFileStage() == SUBMISSION_FILE_PROOF) {
         import('lib.pkp.classes.search.SubmissionSearch');
         import('classes.search.ArticleSearchIndex');
         ArticleSearchIndex::deleteTextIndex($submission->getId(), SUBMISSION_SEARCH_GALLEY_FILE, $submissionFile->getFileId());
     }
 }
 /**
  * Delete a supplementary file.
  * @param $article object
  * @param $suppFileId int
  */
 function deleteSuppFile($article, $suppFileId)
 {
     import('classes.file.ArticleFileManager');
     $suppFileDao =& DAORegistry::getDAO('SuppFileDAO');
     $suppFile =& $suppFileDao->getSuppFile($suppFileId, $article->getId());
     if (isset($suppFile) && !HookRegistry::call('LayoutEditorAction::deleteSuppFile', array(&$article, &$suppFile))) {
         if ($suppFile->getFileId()) {
             $articleFileManager = new ArticleFileManager($article->getId());
             $articleFileManager->deleteFile($suppFile->getFileId());
             import('classes.search.ArticleSearchIndex');
             ArticleSearchIndex::deleteTextIndex($article->getId(), ARTICLE_SEARCH_SUPPLEMENTARY_FILE, $suppFile->getFileId());
         }
         $suppFileDao->deleteSuppFile($suppFile);
     }
 }