setItemsPerPage() public method

Set the items per page
public setItemsPerPage ( $itemsPerPage )
$itemsPerPage integer
Esempio n. 1
0
 /**
  * @see ArticleSearch::retrieveResults()
  */
 function callbackRetrieveResults($hookName, $params)
 {
     assert($hookName == 'ArticleSearch::retrieveResults');
     // Unpack the parameters.
     list($journal, $keywords, $fromDate, $toDate, $page, $itemsPerPage, $dummy) = $params;
     $totalResults =& $params[6];
     // need to use reference
     $error =& $params[7];
     // need to use reference
     // Instantiate a search request.
     $searchRequest = new SolrSearchRequest();
     $searchRequest->setJournal($journal);
     $searchRequest->setFromDate($fromDate);
     $searchRequest->setToDate($toDate);
     $searchRequest->setPage($page);
     $searchRequest->setItemsPerPage($itemsPerPage);
     $searchRequest->addQueryFromKeywords($keywords);
     // Get the ordering criteria.
     list($orderBy, $orderDir) = $this->_getResultSetOrdering($journal);
     $searchRequest->setOrderBy($orderBy);
     $searchRequest->setOrderDir($orderDir == 'asc' ? true : false);
     // Configure alternative spelling suggestions.
     $spellcheck = (bool) $this->getSetting(0, 'spellcheck');
     $searchRequest->setSpellcheck($spellcheck);
     // Configure highlighting.
     $highlighting = (bool) $this->getSetting(0, 'highlighting');
     $searchRequest->setHighlighting($highlighting);
     // Configure faceting.
     // 1) Faceting will be disabled for filtered search categories.
     $activeFilters = array_keys($searchRequest->getQuery());
     if (is_a($journal, 'Journal')) {
         $activeFilters[] = 'journalTitle';
     }
     if (!empty($fromDate) || !empty($toDate)) {
         $activeFilters[] = 'publicationDate';
     }
     // 2) Switch faceting on for enabled categories that have no
     // active filters.
     $facetCategories = array_values(array_diff($this->_getEnabledFacetCategories(), $activeFilters));
     $searchRequest->setFacetCategories($facetCategories);
     // Configure custom ranking.
     $customRanking = (bool) $this->getSetting(0, 'customRanking');
     if ($customRanking) {
         $sectionDao =& DAORegistry::getDAO('SectionDAO');
         /* @var $sectionDao SectionDAO */
         if (is_a($journal, 'Journal')) {
             $sections = $sectionDao->getJournalSections($journal->getId());
         } else {
             $sections = $sectionDao->getSections();
         }
         while (!$sections->eof()) {
             /* @var $sections DAOResultFactory */
             $section =& $sections->next();
             $rankingBoost = $section->getData('rankingBoost');
             if (isset($rankingBoost)) {
                 $sectionBoost = (double) $rankingBoost;
             } else {
                 $sectionBoost = LUCENE_PLUGIN_DEFAULT_RANKING_BOOST;
             }
             if ($sectionBoost != LUCENE_PLUGIN_DEFAULT_RANKING_BOOST) {
                 $searchRequest->addBoostFactor('section_id', $section->getId(), $sectionBoost);
             }
             unset($section);
         }
         unset($sections);
     }
     // Call the solr web service.
     $solrWebService =& $this->getSolrWebService();
     $result =& $solrWebService->retrieveResults($searchRequest, $totalResults);
     if (is_null($result)) {
         $error = $solrWebService->getServiceMessage();
         $this->_informTechAdmin($error, $journal, true);
         $error .= ' ' . __('plugins.generic.lucene.message.techAdminInformed');
         return array();
     } else {
         // Store spelling suggestion, highlighting and faceting info
         // internally. We cannot route these back through the request
         // as the default search implementation does not support
         // these features.
         if ($spellcheck && isset($result['spellingSuggestion'])) {
             $this->_spellingSuggestion = $result['spellingSuggestion'];
             // Identify the field for which we got the suggestion.
             foreach ($keywords as $bitmap => $searchPhrase) {
                 if (!empty($searchPhrase)) {
                     switch ($bitmap) {
                         case null:
                             $queryField = 'query';
                             break;
                         case ARTICLE_SEARCH_INDEX_TERMS:
                             $queryField = 'indexTerms';
                             break;
                         default:
                             $indexFieldMap = ArticleSearch::getIndexFieldMap();
                             assert(isset($indexFieldMap[$bitmap]));
                             $queryField = $indexFieldMap[$bitmap];
                     }
                 }
             }
             $this->_spellingSuggestionField = $queryField;
         }
         if ($highlighting && isset($result['highlightedArticles'])) {
             $this->_highlightedArticles = $result['highlightedArticles'];
         }
         if (!empty($facetCategories) && isset($result['facets'])) {
             $this->_facets = $result['facets'];
         }
         // Return the scored results.
         if (isset($result['scoredResults']) && !empty($result['scoredResults'])) {
             return $result['scoredResults'];
         } else {
             return array();
         }
     }
 }