SearchHandler.inc.php

<?php
 
import('classes.search.ArticleSearch');
import('classes.handler.Handler');
 
class SearchHandler extends Handler {
 
   function authorize($request, &$args, $roleAssignments) {
      import('classes.security.authorization.OpsServerMustPublishPolicy');
      if ($request->getContext()) $this->addPolicy(new OpsServerMustPublishPolicy($request));
 
      return parent::authorize($request, $args, $roleAssignments);
   }
 
   function index($args, $request) {
      $this->validate(null, $request);
      $this->search($args, $request);
   }
 
   function _assignSearchFilters($request, &$templateMgr, $searchFilters) {
      // Get the journal id (if any).
      $journal =& $searchFilters['searchJournal'];
      $journalId = ($journal ? $journal->getId() : null);
      $searchFilters['searchJournal'] = $journalId;
 
      // Assign all filters except for dates which need special treatment.
      $templateSearchFilters = array();
      foreach($searchFilters as $filterName => $filterValue) {
         if (in_array($filterName, array('fromDate', 'toDate'))) continue;
         $templateSearchFilters[$filterName] = $filterValue;
      }
 
      // Assign the filters to the template.
      $templateMgr->assign($templateSearchFilters);
 
      // Special case: publication date filters.
      foreach(array('From', 'To') as $fromTo) {
         $month = $request->getUserVar("date${fromTo}Month");
         $day = $request->getUserVar("date${fromTo}Day");
         $year = $request->getUserVar("date${fromTo}Year");
         if (empty($year)) {
            $date = NULL;
            $hasEmptyFilters = true;
         } else {
            $defaultMonth = ($fromTo == 'From' ? 1 : 12);
            $defaultDay = ($fromTo == 'From' ? 1 : 31);
            $date = date(
               'Y-m-d H:i:s',
               mktime(
                  0, 0, 0, empty($month) ? $defaultMonth : $month,
                  empty($day) ? $defaultDay : $day, $year
               )
            );
            $hasActiveFilters = true;
         }
         $templateMgr->assign(array(
            "date${fromTo}Month" => $month,
            "date${fromTo}Day" => $day,
            "date${fromTo}Year" => $year,
            "date${fromTo}" => $date
         ));
      }
 
      // Assign the year range.
      $yearRange = Services::get('publication')->getDateBoundaries(['contextIds' => $journalId]);
      $yearStart = substr($yearRange[1], 0, 4);
      $yearEnd = substr($yearRange[0], 0, 4);
      $templateMgr->assign(array(
         'yearStart' => $yearStart,
         'yearEnd' => $yearEnd,
      ));
   }
 
   function search($args, $request) {
      $this->validate(null, $request);
 
      // Get and transform active filters.
      $articleSearch = new ArticleSearch();
      $searchFilters = $articleSearch->getSearchFilters($request);
      $keywords = $articleSearch->getKeywordsFromSearchFilters($searchFilters);
 
      // Get the range info.
      $rangeInfo = $this->getRangeInfo($request, 'search');
 
      // Retrieve results.
      $error = '';
      $results = $articleSearch->retrieveResults(
         $request, $searchFilters['searchJournal'], $keywords, $error,
         $searchFilters['fromDate'], $searchFilters['toDate'],
         $rangeInfo
      );
 
      // Prepare and display the search template.
      $this->setupTemplate($request);
      $templateMgr = TemplateManager::getManager($request);
      $templateMgr->setCacheability(CACHEABILITY_NO_STORE);
 
      // Result set ordering options.
      $orderByOptions = $articleSearch->getResultSetOrderingOptions($request);
      $templateMgr->assign('searchResultOrderOptions', $orderByOptions);
      $orderDirOptions = $articleSearch->getResultSetOrderingDirectionOptions();
      $templateMgr->assign('searchResultOrderDirOptions', $orderDirOptions);
 
      // Result set ordering selection.
      list($orderBy, $orderDir) = $articleSearch->getResultSetOrdering($request);
      $templateMgr->assign('orderBy', $orderBy);
      $templateMgr->assign('orderDir', $orderDir);
 
      // Similar documents.
      $templateMgr->assign('simDocsEnabled', true);
 
      // Result set display.
      $this->_assignSearchFilters($request, $templateMgr, $searchFilters);
      $templateMgr->assign('results', $results);
      $templateMgr->assign('error', $error);
      $templateMgr->display('frontend/pages/search.tpl');
   }
 
   function similarDocuments($args, &$request) {
      $this->validate(null, $request);
 
      // Retrieve the (mandatory) ID of the article that
      // we want similar documents for.
      $articleId = $request->getUserVar('articleId');
      if (!is_numeric($articleId)) {
         $request->redirect(null, 'search');
      }
 
      // Check whether a search plugin provides terms for a similarity search.
      $articleSearch = new ArticleSearch();
      $searchTerms = $articleSearch->getSimilarityTerms($articleId);
 
      // Redirect to a search query with the identified search terms (if any).
      if (empty($searchTerms)) {
         $searchParams = null;
      } else {
         $searchParams = array('query' => implode(' ', $searchTerms));
      }
      $request->redirect(null, 'search', 'search', null, $searchParams);
   }
 
   function authors($args, $request) {
      $this->validate(null, $request);
      $this->setupTemplate($request);
 
      $journal = $request->getJournal();
      $user = $request->getUser();
 
      $authorDao = DAORegistry::getDAO('AuthorDAO');
 
      if (isset($args[0]) && $args[0] == 'view') {
         // View a specific author
         $authorName = $request->getUserVar('authorName');
         $givenName = $request->getUserVar('givenName');
         $familyName = $request->getUserVar('familyName');
         $affiliation = $request->getUserVar('affiliation');
         $country = $request->getUserVar('country');
 
         $authorRecords = iterator_to_array(Services::get('author')->getMany([
            'contextIds' => $journal?[$journal->getId()]:[],
            'givenName' => $givenName,
            'familyName' => $familyName,
            'affiliation' => $affiliation,
            'country' => $country,
         ]));
         $publicationIds = array_map(function($author) {
            return $author->getData('publicationId');
         }, $authorRecords);
         $submissionIds = array_map(function($publicationId) {
            return Services::get('publication')->get($publicationId)->getData('submissionId');
         }, array_unique($publicationIds));
         $submissions = array_map(function($submissionId) {
            return Services::get('submission')->get($submissionId);
         }, array_unique($submissionIds));
 
         // Load information associated with each article.
         $journals = array();
         $sections = array();
 
         $sectionDao = DAORegistry::getDAO('SectionDAO'); /* @var $sectionDao SectionDAO */
         $journalDao = DAORegistry::getDAO('JournalDAO'); /* @var $journalDao JournalDAO */
 
         foreach ($submissions as $article) {
            $articleId = $article->getId();
            $sectionId = $article->getSectionId();
            $journalId = $article->getData('contextId');
 
            if (!isset($journals[$journalId])) {
               $journals[$journalId] = $journalDao->getById($journalId);
            }
            if (!isset($sections[$sectionId])) {
               $sections[$sectionId] = $sectionDao->getById($sectionId, $journalId, true);
            }
         }
 
         if (empty($submissions)) {
            $request->redirect(null, $request->getRequestedPage());
         }
 
         $templateMgr = TemplateManager::getManager($request);
         $templateMgr->assign(array(
            'submissions' => $submissions,
            'sections' => $sections,
            'journals' => $journals,
            'givenName' => $givenName,
            'familyName' => $familyName,
            'affiliation' => $affiliation,
            'authorName' => $authorName
         ));
 
         $isoCodes = new \Sokil\IsoCodes\IsoCodesFactory();
         $countries = $countries = $isoCodes->getCountries();
         $country = $countries->getByAlpha2($country);
         $templateMgr->assign('country', $country?$country->getLocalName():'');
 
         $templateMgr->display('frontend/pages/searchAuthorDetails.tpl');
      } else {
         // Show the author index
         $searchInitial = $request->getUserVar('searchInitial');
         $rangeInfo = $this->getRangeInfo($request, 'authors');
 
         $authors = $authorDao->getAuthorsAlphabetizedByJournal(
            isset($journal)?$journal->getId():null,
            $searchInitial,
            $rangeInfo
         );
 
         $templateMgr = TemplateManager::getManager($request);
         $templateMgr->assign(array(
            'searchInitial' => $request->getUserVar('searchInitial'),
            'alphaList' => array_merge(array('-'), explode(' ', __('common.alphaList'))),
            'authors' => $authors,
         ));
         $templateMgr->display('frontend/pages/searchAuthorIndex.tpl');
      }
   }
 
   function setupTemplate($request) {
      parent::setupTemplate($request);
      $templateMgr = TemplateManager::getManager($request);
      $journal = $request->getJournal();
      if (!$journal || !$journal->getData('restrictSiteAccess')) {
         $templateMgr->setCacheability(CACHEABILITY_PUBLIC);
      }
   }
}