/**
* just shows empty page. need to determine what to show on default page.
*
* @param Request $request
*
* @return \Symfony\Component\HttpFoundation\Response
*
* @Route("/", name="ubc_exam_main_homepage")
*/
public function indexAction(Request $request)
{
$pagination = array();
$pagerHtml = null;
$q = $request->get('q');
if (!is_null($q) && !empty($q)) {
// search the index
QueryParser::setDefaultOperator(QueryParser::B_AND);
Wildcard::setMinPrefixLength(1);
$hits = $this->get('ivory_lucene_search')->getIndex('exams')->find($q . '*');
$ids = array();
foreach ($hits as $hit) {
$ids[] = $hit->pk;
}
$ids = array_unique($ids);
// search the db by ids, because we need to get the exams only visible for current user
if (!empty($ids)) {
// find out the current user registered courses and faculty
$em = $this->getDoctrine()->getManager();
$coursesWithKeys = $request->getSession()->get('courses') ? $request->getSession()->get('courses') : array();
$courses = array_keys($coursesWithKeys);
$faculties = array_values($em->getRepository('UBCExamMainBundle:SubjectFaculty')->getFacultiesByCourses($courses));
$userId = $this->get('security.authorization_checker')->isGranted('ROLE_ADMIN') ? -1 : $this->getCurrentUserId();
$qb = $this->getDoctrine()->getRepository('UBCExamMainBundle:Exam')->queryExamsByIds($ids, $userId, $faculties, $courses);
$paginator = $this->get('knp_paginator');
$pagination = $paginator->paginate($qb, $request->query->get('page', 1), 20);
}
}
return $this->render('UBCExamMainBundle:Default:index.html.twig', array('pagination' => $pagination, 'q' => $q, 'subjectCode' => '', 'subjectCodeLabel' => ''));
}
/**
* @param string $path Path to search index
*/
public function __construct($path, NodeTypeManagerInterface $nodeTypeManager = null, $hideDestructException = false)
{
$this->path = $path;
$this->filesystem = new Filesystem();
$this->nodeTypeManager = $nodeTypeManager;
$this->hideDestructException = $hideDestructException;
Analyzer::setDefault(new ExactMatchAnalyzer());
Wildcard::setMinPrefixLength(0);
}
public function tearDown()
{
Query\Wildcard::setMinPrefixLength($this->_wildcardMinPrefix);
Query\Fuzzy::setDefaultPrefixLength($this->_defaultPrefixLength);
}
public function testWildcardQuery()
{
$index = Lucene\Lucene::open(__DIR__ . '/_index23Sample/_files');
$wildcardMinPrefix = Query\Wildcard::getMinPrefixLength();
Query\Wildcard::setMinPrefixLength(0);
$hits = $index->find('*cont*');
$this->assertEquals(count($hits), 9);
$expectedResultset = array(array(8, 0.328087, 'IndexSource/contributing.html'), array(2, 0.318592, 'IndexSource/contributing.patches.html'), array(7, 0.260137, 'IndexSource/contributing.bugs.html'), array(0, 0.203372, 'IndexSource/contributing.documentation.html'), array(1, 0.202366, 'IndexSource/contributing.wishlist.html'), array(4, 0.052931, 'IndexSource/copyright.html'), array(3, 0.01707, 'IndexSource/about-pear.html'), array(5, 0.01015, 'IndexSource/authors.html'), array(9, 0.003504, 'IndexSource/core.html'));
foreach ($hits as $resId => $hit) {
$this->assertEquals($hit->id, $expectedResultset[$resId][0]);
$this->assertTrue(abs($hit->score - $expectedResultset[$resId][1]) < 1.0E-6);
$this->assertEquals($hit->path, $expectedResultset[$resId][2]);
}
Query\Wildcard::setMinPrefixLength($wildcardMinPrefix);
}
protected function buildQuery($keyword, $options)
{
// Allow *Token*
\ZendSearch\Lucene\Search\Query\Wildcard::setMinPrefixLength(0);
$query = new \ZendSearch\Lucene\Search\Query\Boolean();
foreach (explode(" ", $keyword) as $k) {
// Require at least 3 non-wildcard characters
if (strlen($k) > 2) {
$term = new \ZendSearch\Lucene\Index\Term("*" . $k . "*");
$query->addSubquery(new \ZendSearch\Lucene\Search\Query\Wildcard($term), true);
}
}
// Add model filter
if (isset($options['model']) && $options['model'] != "") {
if (is_array($options['model'])) {
$boolQuery = new \ZendSearch\Lucene\Search\Query\MultiTerm();
foreach ($options['model'] as $model) {
$boolQuery->addTerm(new \ZendSearch\Lucene\Index\Term($model, 'model'));
}
$query->addSubquery($boolQuery, true);
} else {
$term = new \ZendSearch\Lucene\Index\Term($options['model'], 'model');
$query->addSubquery(new \ZendSearch\Lucene\Search\Query\Term($term), true);
}
}
// Add type filter
if (isset($options['type']) && $options['type'] != "") {
if (is_array($options['type'])) {
$boolQuery = new \ZendSearch\Lucene\Search\Query\MultiTerm();
foreach ($options['type'] as $model) {
$boolQuery->addTerm(new \ZendSearch\Lucene\Index\Term($type), 'type');
}
$query->addSubquery($boolQuery, true);
} else {
$term = new \ZendSearch\Lucene\Index\Term($options['type'], 'type');
$query->addSubquery(new \ZendSearch\Lucene\Search\Query\Term($term), true);
}
}
// Add custom filters
if (isset($options['filters']) && is_array($options['filters'])) {
foreach ($options['filters'] as $field => $value) {
$term = new \ZendSearch\Lucene\Index\Term($value, $field);
$query->addSubquery(new \ZendSearch\Lucene\Search\Query\Term($term), true);
}
}
if ($options['checkPermissions'] && !Yii::$app->request->isConsoleRequest) {
$permissionQuery = new \ZendSearch\Lucene\Search\Query\Boolean();
if (Yii::$app->user->isGuest) {
// Guest Content
$guestContentQuery = new \ZendSearch\Lucene\Search\Query\Boolean();
$guestContentQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(self::DOCUMENT_VISIBILITY_PUBLIC, 'visibility')), true);
$guestContentQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(self::DOCUMENT_TYPE_CONTENT, 'type')), true);
$guestContentQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(Space::className(), 'containerModel')), true);
$guestSpaceListQuery = new \ZendSearch\Lucene\Search\Query\MultiTerm();
foreach (Space::find()->where(['visibility' => Space::VISIBILITY_ALL])->all() as $space) {
$guestSpaceListQuery->addTerm(new \ZendSearch\Lucene\Index\Term($space->id, 'containerPk'));
}
$guestContentQuery->addSubquery($guestSpaceListQuery, true);
$permissionQuery->addSubquery($guestContentQuery);
// Guest Spaces
$guestSpacesQuery = new \ZendSearch\Lucene\Search\Query\Boolean();
$guestSpacesQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(self::DOCUMENT_TYPE_SPACE, 'type')), true);
$guestSpacesQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(self::DOCUMENT_VISIBILITY_PUBLIC, 'visibility')), true);
$permissionQuery->addSubquery($guestSpacesQuery);
$permissionQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(self::DOCUMENT_TYPE_USER, 'type')));
} else {
//--- Public Content
$permissionQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(self::DOCUMENT_VISIBILITY_PUBLIC, 'visibility')));
//--- Private Space Content
$privateSpaceContentQuery = new \ZendSearch\Lucene\Search\Query\Boolean();
$privateSpaceContentQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(self::DOCUMENT_VISIBILITY_PRIVATE, 'visibility')), true);
$privateSpaceContentQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(Space::className(), 'containerModel')), true);
$privateSpacesListQuery = new \ZendSearch\Lucene\Search\Query\MultiTerm();
foreach (\humhub\modules\space\models\Membership::GetUserSpaces() as $space) {
$privateSpacesListQuery->addTerm(new \ZendSearch\Lucene\Index\Term($space->id, 'containerPk'));
}
$privateSpaceContentQuery->addSubquery($privateSpacesListQuery, true);
$permissionQuery->addSubquery($privateSpaceContentQuery);
}
$query->addSubquery($permissionQuery, true);
}
if (count($options['limitSpaces']) > 0) {
$spaceBaseQuery = new \ZendSearch\Lucene\Search\Query\Boolean();
$spaceBaseQuery->addSubquery(new \ZendSearch\Lucene\Search\Query\Term(new \ZendSearch\Lucene\Index\Term(Space::className(), 'containerModel')), true);
$spaceIdQuery = new \ZendSearch\Lucene\Search\Query\MultiTerm();
foreach ($options['limitSpaces'] as $space) {
$spaceIdQuery->addTerm(new \ZendSearch\Lucene\Index\Term($space->id, 'containerPk'));
}
$spaceBaseQuery->addSubquery($spaceIdQuery, true);
$query->addSubquery($spaceBaseQuery, true);
}
return $query;
}
public function testWildcardQuery()
{
$index = Lucene\Lucene::open(__DIR__ . '/_indexSample/_files');
$wildcardMinPrefix = Query\Wildcard::getMinPrefixLength();
Query\Wildcard::setMinPrefixLength(0);
$hits = $index->find('*cont*');
$this->assertEquals(count($hits), 9);
$expectedResultset = array(array(8, 0.125253, 'IndexSource/contributing.html'), array(4, 0.112122, 'IndexSource/copyright.html'), array(2, 0.108491, 'IndexSource/contributing.patches.html'), array(7, 0.07771599999999999, 'IndexSource/contributing.bugs.html'), array(0, 0.05076, 'IndexSource/contributing.documentation.html'), array(1, 0.049163, 'IndexSource/contributing.wishlist.html'), array(3, 0.036159, 'IndexSource/about-pear.html'), array(5, 0.0215, 'IndexSource/authors.html'), array(9, 0.007422, 'IndexSource/core.html'));
foreach ($hits as $resId => $hit) {
$this->assertEquals($hit->id, $expectedResultset[$resId][0]);
$this->assertTrue(abs($hit->score - $expectedResultset[$resId][1]) < 1.0E-6);
$this->assertEquals($hit->path, $expectedResultset[$resId][2]);
}
Query\Wildcard::setMinPrefixLength($wildcardMinPrefix);
}
/**
* Search page for the term in the index.
* @param string $term
* @return array ('results' => array \ZendSearch\Lucene\Search\QueryHit, 'query' => string)
*/
public function find($term)
{
Wildcard::setMinPrefixLength($this->minPrefixLength);
Lucene::setResultSetLimit($this->resultsLimit);
return ['results' => $this->luceneIndex->find($term), 'query' => $term];
}
/**
* Выполнить поисковый запрос. Результат представляет собой
*
* @param string $queryWord строка запроса
* @param int $totalCount
* @param string $queryEncoding кодировка строки запроса
* @param ModelFilter|null $filter фильтр моделей
* @return QueryHit[]
*/
public function search($queryWord, &$totalCount, $queryEncoding = 'utf-8', ModelFilter $filter = null)
{
Wildcard::setMinPrefixLength(0);
$this->lastQuery = mb_convert_encoding($queryWord, 'utf-8', $queryEncoding);
// фильтрация всех символов, кроме букв и цифр
$this->lastQuery = mb_ereg_replace("[^а-яА-Яa-zA-Z0-9]+", " ", $this->lastQuery);
$query = $this->buildQuery($this->lastQuery, $this->getFields());
$hitList = $this->connection->find($query);
if (null !== $filter) {
$hitList = $filter->doFilter($hitList);
}
$totalCount = count($hitList);
return $hitList;
}
/**
* Query specific matches highlighting
*
* @param Highlighter $highlighter Highlighter object (also contains doc for highlighting)
*/
protected function _highlightMatches(Highlighter $highlighter)
{
/** Skip fields detection. We don't need it, since we expect all fields presented in the HTML body and don't differentiate them */
/** Skip exact term matching recognition, keyword fields highlighting is not supported */
// -------------------------------------
// Recognize wildcard queries
/**
* @todo check for PCRE unicode support may be performed through Zend_Environment in some future
*/
ErrorHandler::start(E_WARNING);
$result = preg_match('/\\pL/u', 'a');
ErrorHandler::stop();
if ($result == 1) {
$word = iconv($this->_encoding, 'UTF-8', $this->_word);
$wildcardsPattern = '/[*?]/u';
$subPatternsEncoding = 'UTF-8';
} else {
$word = $this->_word;
$wildcardsPattern = '/[*?]/';
$subPatternsEncoding = $this->_encoding;
}
$subPatterns = preg_split($wildcardsPattern, $word, -1, PREG_SPLIT_OFFSET_CAPTURE);
if (count($subPatterns) > 1) {
// Wildcard query is recognized
$pattern = '';
foreach ($subPatterns as $id => $subPattern) {
// Append corresponding wildcard character to the pattern before each sub-pattern (except first)
if ($id != 0) {
$pattern .= $word[$subPattern[1] - 1];
}
// Check if each subputtern is a single word in terms of current analyzer
$tokens = Analyzer\Analyzer::getDefault()->tokenize($subPattern[0], $subPatternsEncoding);
if (count($tokens) > 1) {
// Do nothing (nothing is highlighted)
return;
}
foreach ($tokens as $token) {
$pattern .= $token->getTermText();
}
}
$term = new Index\Term($pattern, $this->_field);
$query = new Query\Wildcard($term);
$query->_highlightMatches($highlighter);
return;
}
// -------------------------------------
// Recognize one-term multi-term and "insignificant" queries
$tokens = Analyzer\Analyzer::getDefault()->tokenize($this->_word, $this->_encoding);
if (count($tokens) == 0) {
// Do nothing
return;
}
if (count($tokens) == 1) {
$highlighter->highlight($tokens[0]->getTermText());
return;
}
//It's not insignificant or one term query
$words = array();
foreach ($tokens as $token) {
$words[] = $token->getTermText();
}
$highlighter->highlight($words);
}
/**
* Search page for the term in the index.
* @param string $term
* @param array $fields (string => string)
* @return array ('results' => \ZendSearch\Lucene\Search\QueryHit[], 'query' => string)
*/
public function find($term, $fields = [])
{
Wildcard::setMinPrefixLength($this->minPrefixLength);
Lucene::setResultSetLimit($this->resultsLimit);
if (empty($fields)) {
return ['results' => $this->luceneIndex->find($term), 'query' => $term];
}
$fieldTerms[] = new IndexTerm($term);
foreach ($fields as $field => $fieldText) {
$fieldTerms[] = new IndexTerm($fieldText, $field);
}
return ['results' => $this->luceneIndex->find(new MultiTerm($fieldTerms)), 'query' => $term];
}
/**
* Search page for the term in the index.
*
* @param $term
* @param array $fields
* @return array|\ZendSearch\Lucene\Search\QueryHit
*/
public function search($term, $fields = [])
{
Wildcard::setMinPrefixLength($this->minPrefixLength);
Lucene::setResultSetLimit($this->resultsLimit);
$query = new MultiTerm();
if (count($fields)) {
foreach ($fields as $field => $value) {
$query->addTerm(new IndexTerm($value, $field), true);
}
}
$subTerm = explode(' ', $term);
foreach ($subTerm as $value) {
$query->addTerm(new IndexTerm($value), true);
}
return $this->luceneIndex->find($query);
}
