public function getBySearch($term, $whereTerms = [], $count = 20, $paginationAppends = [])
{
$terms = $this->prepareSearchTerms($term);
$pageQuery = $this->permissionService->enforcePageRestrictions($this->page->fullTextSearchQuery(['name', 'text'], $terms, $whereTerms));
$pageQuery = $this->addAdvancedSearchQueries($pageQuery, $term);
$pages = $pageQuery->paginate($count)->appends($paginationAppends);
// Add highlights to page text.
$words = join('|', explode(' ', preg_quote(trim($term), '/')));
//lookahead/behind assertions ensures cut between words
$s = '\\s\\x00-/:-@\\[-`{-~';
//character set for start/end of words
foreach ($pages as $page) {
preg_match_all('#(?<=[' . $s . ']).{1,30}((' . $words . ').{1,30})+(?=[' . $s . '])#uis', $page->text, $matches, PREG_SET_ORDER);
//delimiter between occurrences
$results = [];
foreach ($matches as $line) {
$results[] = htmlspecialchars($line[0], 0, 'UTF-8');
}
$matchLimit = 6;
if (count($results) > $matchLimit) {
$results = array_slice($results, 0, $matchLimit);
}
$result = join('... ', $results);
//highlight
$result = preg_replace('#' . $words . '#iu', "<span class=\"highlight\">\$0</span>", $result);
if (strlen($result) < 5) {
$result = $page->getExcerpt(80);
}
$page->searchSnippet = $result;
}
return $pages;
}