</p>
                                                    </div>
                                                    <la:form action="/admin/searchlist/deleteall">
                                                    <div class="modal-footer justify-content-between">
                                                            <la:hidden property="q"/>

                                                            <button type="submit" class="btn btn-outline-light"
                                                                    name="deleteall"
                                                                    value="<la:message key="labels.joblog_delete_all_link" />">

     *
     * @return true if the operation was successful, false otherwise.
     */
    public boolean deleteAllWords() {
        final SuggestDeleteResponse response = suggester.indexer().deleteAll();
        if (response.hasError()) {
            logger.warn("Failed to delete all words.", response.getErrors().get(0));
            return false;
        }
        refresh();
        return true;
    }

    }

    /**
     * Deletes all failure URLs that match the criteria specified in the pager.
     *
     * @param failureUrlPager the pager containing deletion criteria
     */
    public void deleteAll(final FailureUrlPager failureUrlPager) {
        failureUrlBhv.queryDelete(cb -> {
            buildSearchCondition(failureUrlPager, cb);
        });
    }

    /**

                                                            <button type="submit" class="btn btn-outline-light"
                                                                    name="deleteall"
                                                                    value="<la:message key="labels.crawling_info_delete_all_link" />">

    /**
     * Deletes all search log entries.
     *
     * @return HTML response redirecting to the list page after deletion
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse deleteall() {
        verifyToken(this::asListHtml);
        searchLogPager.clear();
        // TODO delete logs
        saveInfo(messages -> messages.addSuccessCrawlingInfoDeleteAll(GLOBAL));
        return redirect(getClass());

     *
     * @param form the list form containing search criteria
     * @return HTML response redirecting to the list page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse deleteall(final ListForm form) {
        validate(form, messages -> {}, this::asListHtml);
        verifyToken(this::asListHtml);
        try {
            searchHelper.deleteByQuery(request, form);

        chain.delete(user);

        assertEquals(1, chain.deleteCalls.size());
        assertEquals(user, chain.deleteCalls.get(0));
    }

    // Test delete with null user
    @Test
    public void test_delete_nullUser() {
        TestAuthenticationChain chain = new TestAuthenticationChain();

        chain.delete(null);

        assertEquals(1, chain.deleteCalls.size());
        assertNull(chain.deleteCalls.get(0));