/**
* Search & display of search results
*
* @param \string $searchterm Search term(s)
* @param \int $pointer Result pointer
* @param \boolean $notfound Indicator for 404 based search
* @return \void
*/
public function resultsAction($searchterm = '', $pointer = 0, $notfound = false)
{
$page = intval($this->settings['defaultResultsPage']) ? intval($this->settings['defaultResultsPage']) : $GLOBALS['TSFE']->id;
$this->settings = \Tollwerk\TwLucenesearch\Utility\Indexer::indexConfig($GLOBALS['TSFE']);
$indexInfo = null;
$hits = array();
$error = false;
$query = null;
// Instanciating the lucene index service
/* @var $indexerService \Tollwerk\TwLucenesearch\Service\Lucene */
$indexerService = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstanceService('index', 'lucene');
if ($indexerService instanceof \TYPO3\CMS\Core\Service\AbstractService) {
$indexInfo = $indexerService->indexInfo();
// Run the search
$hits = $indexerService->find($searchterm, $query);
// If the search didn't complete successful
if (!$hits instanceof \Tollwerk\TwLucenesearch\Domain\Model\QueryHits) {
$error = true;
}
}
$this->view->assign('settings', $this->settings);
$this->view->assign('error', $error);
$this->view->assign('searchterm', trim($searchterm));
$this->view->assign('page', $page);
$this->view->assign('indexInfo', $indexInfo);
$this->view->assign('hits', $hits);
$this->view->assign('query', $query);
$this->view->assign('notfound', $notfound * 1);
$this->view->assign('baseUrl', $_SERVER['SERVER_NAME']);
}
/**
* Set the indexed and page title of the current page
*
* @param string $title User defined page title
* @param string $format Title format with substitution markers (%S = Website title, %P = Page title, %C = User defined title as given in argument 1)
* @param string $pageFormat Optional: Alternative format for page title
* @return string Dummy result string (empty)
*/
public function render($title, $format = '%S: %P - %C', $pageFormat = null)
{
\Tollwerk\TwLucenesearch\Utility\Indexer::setPageTitle($title, $format, $pageFormat);
return '';
}
/**
* Rewrite the original search in accordance to the search configuration
*
* @param string $searchterm Original search terms
* @param array $tokenTerms Single search term tokens
* @return string Rewritten search terms
*/
protected function _rewriteQueryTerms($searchTerm, &$tokenTerms = array())
{
$tokenTerms = array();
try {
$searchConfig = \Tollwerk\TwLucenesearch\Utility\Indexer::indexConfig($GLOBALS['TSFE'], 'search.searchConfig');
$lexer = new \Zend_Search_Lucene_Search_QueryLexer();
// Iterate over the extracted tokens
/* @var $token \Zend_Search_Lucene_Search_QueryToken */
$tokens = array_reverse($lexer->tokenize($searchTerm, 'UTF-8'));
$tokenCount = count($tokens);
foreach ($tokens as $tokenIndex => $token) {
// If there's a word or a phrase which has no certain field name applied
if (($token->type == \Zend_Search_Lucene_Search_QueryToken::TT_WORD || $token->type == \Zend_Search_Lucene_Search_QueryToken::TT_PHRASE) && ($tokenIndex == $tokenCount - 1 || $tokens[$tokenIndex + 1]->type != \Zend_Search_Lucene_Search_QueryToken::TT_FIELD)) {
$tokenTerms[] = $token;
$isPhrase = $token->type == \Zend_Search_Lucene_Search_QueryToken::TT_PHRASE;
$tokenStr = $isPhrase ? '"' . $token->text . '"' : $token->text;
$tokenStrLength = strlen($tokenStr);
// Apply external rewriters
if (is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['tw_lucenesearch']['term-rewrite-hooks'])) {
$params = array('token' => &$token, 'pObj' => &$this);
foreach ($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['tw_lucenesearch']['term-rewrite-hooks'] as $rewriteHook) {
\TYPO3\CMS\Core\Utility\GeneralUtility::callUserFunction($rewriteHook, $params, $this);
}
}
// If the token type is being changed from "word" dot "phrase" ...
if (!$isPhrase && $token->type == \Zend_Search_Lucene_Search_QueryToken::TT_PHRASE) {
$isPhrase = true;
$tokenStr = '"' . $token->text . '"';
}
// Rewrite in accordance to the search configuration
$tokenRewrite = array();
foreach ($searchConfig as $searchField) {
$value = $isPhrase || $searchField->fuzzy ? strtr($searchField->value, array('*' => '')) : $searchField->value;
$sfTokenStr = $searchField->field !== true ? $searchField->field . ':' : '';
$sfTokenStr .= strtr($value, array('?' => $tokenStr));
if ($searchField->fuzzy !== false) {
$sfTokenStr .= '~' . $searchField->fuzzy;
}
if ($searchField->boost !== null) {
$sfTokenStr .= '^' . $searchField->boost;
}
$tokenRewrite[] = $sfTokenStr;
}
$tokenRewrite = '(' . implode(' OR ', $tokenRewrite) . ')';
$searchTerm = substr($searchTerm, 0, $token->position - $tokenStrLength) . $tokenRewrite . substr($searchTerm, $token->position);
}
}
} catch (\Zend_Search_Lucene_Search_QueryParserException $e) {
}
return $searchTerm;
}
