<button type="button" class="btn btn-danger btn-xs"
                                                                name="deleteDocumentWords"
                                                                data-toggle="modal"
                                                                data-target="#confirmToDocumentDelete"

     * Deletes all document-based words from the suggest index.
     *
     * @return true if the operation was successful, false otherwise.
     */
    public boolean deleteDocumentWords() {
        final SuggestDeleteResponse response = suggester.indexer().deleteDocumentWords();
        if (response.hasError()) {
            logger.warn("Failed to delete document words.", response.getErrors().get(0));
            return false;
        }