/**
* Пытается убрать кавычки из запроса
* @param nc_search_language_corrector_phrase $phrase
* @return boolean
*/
public function correct(nc_search_language_corrector_phrase $phrase)
{
if (!nc_search::should('RemovePhrasesOnEmptyResult')) {
return false;
}
$orignal_phrase_text = $phrase_text = $phrase->to_string();
if (strpos($phrase_text, '"') !== false && !preg_match('/"\\S+"/u', $phrase_text)) {
$phrase_text = preg_replace('/"~[\\d\\.]+/', '"', $phrase_text);
// remove distance search
if (nc_search_util::is_boolean_query($phrase_text) || preg_match('/[-+]/', $phrase_text)) {
// there is a a phrase with several words!
$phrase_text = preg_replace('/"(\\S)/u', "(\$1", $phrase_text);
$phrase_text = str_replace('"', ")", $phrase_text);
} else {
$phrase_text = str_replace('"', "", $phrase_text);
}
$message = sprintf(NETCAT_MODULE_SEARCH_CORRECTION_QUOTES, $orignal_phrase_text, $phrase_text);
$phrase->set_phrase($phrase_text, $message);
return true;
}
return false;
}
/**
* Вспомогательный метод для составления запроса из нескольких полей
* (поле «исключить страницы, на которых встречаются слова...»)
*/
public function make_query_string($query, $exclude = false)
{
$query = (string) $query;
if ($exclude && ($exclude = trim((string) $exclude))) {
$not_op = nc_search_util::is_boolean_query($query) || nc_search_util::is_boolean_query($exclude) ? "AND NOT " : "-";
if (strpos($exclude, " ")) {
$exclude = "({$exclude})";
}
if (strpos($query, " ")) {
$query = "({$query})";
}
$query = "{$query} {$not_op}{$exclude}";
}
return $query;
}
/**
* Трансформация запроса nc_search_query в запрос Lucene
* @param nc_search_query $query
* @return Zend_Search_Lucene_Search_Query
*/
protected function get_lucene_query(nc_search_query $query)
{
Zend_Search_Lucene_Search_QueryParser::suppressQueryParsingExceptions();
if ($this->get_setting('DefaultBooleanOperator') == 'AND') {
Zend_Search_Lucene_Search_QueryParser::setDefaultOperator(Zend_Search_Lucene_Search_QueryParser::B_AND);
}
$query_string = $query->to_string();
// range search for integers
if (nc_search::should('AllowRangeSearch') && strpos($query_string, ' TO ')) {
preg_match_all("/(\\[|\\{)\\s*(\\d+)\\s+TO\\s+(\\d+)\\s*(\\]|\\})/", $query_string, $matches, PREG_SET_ORDER);
foreach ($matches as $m) {
$query_string = str_replace($m[0], $m[1] . $this->pad_integer($m[2]) . " TO " . $this->pad_integer($m[3]) . $m[4], $query_string);
}
}
// add a time range should it be required
$modified_after = $query->get('modified_after');
$modified_before = $query->get('modified_before');
if ($modified_before || $modified_after) {
$modified_after = $modified_after ? strftime("%Y%m%d%H%M%S", strtotime($modified_after)) : "19000101000000";
$modified_before = $modified_before ? strftime("%Y%m%d%H%M%S", strtotime($modified_before)) : "22000101000000";
$query_string = "({$query_string}) last_modified:[{$modified_after} TO {$modified_before}]";
}
// add area
$area = $query->get('area');
if ($area) {
if (!$area instanceof nc_search_area) {
$area = new nc_search_area($area);
}
$is_boolean = nc_search_util::is_boolean_query($query_string);
$query_string = "({$query_string}) " . ($is_boolean ? " AND " : "+") . $area->get_field_condition($is_boolean);
}
// parse string into Lucene Query
$zend_query = Zend_Search_Lucene_Search_QueryParser::parse($query_string, 'UTF-8');
return $zend_query;
}
