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LucenePlugin.php
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<?php
/**
* @file LucenePlugin.php
*
* Copyright (c) 2014-2023 Simon Fraser University
* Copyright (c) 2003-2023 John Willinsky
* Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
*
* @class LucenePlugin
* @ingroup plugins_generic_lucene
*
* @brief Lucene plugin class
*/
namespace APP\plugins\generic\lucene;
use PKP\plugins\GenericPlugin;
use PKP\plugins\PluginRegistry;
use PKP\linkAction\LinkAction;
use PKP\linkAction\request\AjaxModal;
use PKP\plugins\Hook;
use PKP\config\Config;
use PKP\core\JSONMessage;
use APP\plugins\generic\lucene\classes\SolrSearchRequest;
use APP\plugins\generic\lucene\classes\SolrWebService;
use APP\plugins\generic\lucene\classes\EmbeddedServer;
use APP\plugins\generic\lucene\classes\form\LuceneSettingsForm;
use PKP\db\DAORegistry;
use APP\core\Application;
use APP\search\ArticleSearch;
use APP\facades\Repo;
use APP\template\TemplateManager;
define('LUCENE_PLUGIN_DEFAULT_RANKING_BOOST', 1.0); // Default: No boost (=weight factor one).
class LucenePlugin extends GenericPlugin {
/** @var SolrWebService */
var $_solrWebService;
/** @var array */
var $_mailTemplates = [];
/** @var string */
var $_spellingSuggestion;
/** @var string */
var $_spellingSuggestionField;
/** @var array */
var $_highlightedArticles;
/** @var array */
var $_enabledFacetCategories;
/** @var array */
var $_facets;
public function __construct()
{
parent::__construct();
$this->application = Application::get()->getName();
}
//
// Getters and Setters
//
/**
* Get the solr web service.
* @return SolrWebService
*/
function getSolrWebService() {
return $this->_solrWebService;
}
/**
* Facets corresponding to a recent search
* (if any).
* @return boolean
*/
function getFacets() {
return $this->_facets;
}
/**
* Set an alternative article mailer implementation.
*
* NB: Required to override the mailer
* implementation for testing.
*
* @param $emailKey string
* @param $mailTemplate MailTemplate
*/
function setMailTemplate($emailKey, $mailTemplate) {
$this->_mailTemplates[$emailKey] = $mailTemplate;
}
/**
* Instantiate a MailTemplate
*
* @param $emailKey string
* @param $journal Journal
*/
function getMailTemplate($emailKey, $journal = null) {
if (!isset($this->_mailTemplates[$emailKey])) {
$mailTemplate = new MailTemplate($emailKey, null, $journal, true, true);
$this->_mailTemplates[$emailKey] = $mailTemplate;
}
return $this->_mailTemplates[$emailKey];
}
//
// Implement template methods from Plugin.
//
/**
* @copydoc Plugin::register()
*/
function register($category, $path, $mainContextId = null) {
$success = parent::register($category, $path, $mainContextId);
if (!Config::getVar('general', 'installed') || defined('RUNNING_UPGRADE')) return $success;
if ($success && $this->getEnabled($mainContextId)) {
// Register callbacks (application-level).
Hook::add('PluginRegistry::loadCategory', [$this, 'callbackLoadCategory']);
Hook::add('LoadHandler', [$this, 'callbackLoadHandler']);
// Register callbacks (data-access level).
Hook::add('Schema::get::submission', function ($hookName, $args) {
$schema = $args[0];
$schema->properties->indexingState = (object)[
'type' => 'string',
'apiSummary' => false,
'validation' => ['nullable']
];
});
$customRanking = (boolean) $this->getSetting(CONTEXT_SITE, 'customRanking');
if ($customRanking) {
Hook::add('Schema::get::section', function($hookName, $args) {
$schema = &$args[0];
$schema->properties->customRanking = (object)[
'type' => 'string',
'apiSummary' => false,
'validation' => ['nullable']
];
});
}
// Register callbacks (controller-level).
//these are current.
Hook::add('ArticleSearch::getResultSetOrderingOptions', [$this, 'callbackGetResultSetOrderingOptions']);
Hook::add('SubmissionSearch::retrieveResults', [$this, 'callbackRetrieveResults']);
Hook::add('ArticleSearchIndex::articleMetadataChanged', [$this, 'callbackArticleMetadataChanged']);
Hook::add('ArticleSearchIndex::submissionFileChanged', [$this, 'callbackSubmissionFileChanged']);
Hook::add('ArticleSearchIndex::submissionFileDeleted', [$this, 'callbackSubmissionFileDeleted']);
Hook::add('ArticleSearchIndex::submissionFilesChanged', [$this, 'callbackSubmissionFilesChanged']);
Hook::add('ArticleSearchIndex::submissionDeleted', [$this, 'callbackArticleDeleted']);
Hook::add('ArticleSearchIndex::articleDeleted', [$this, 'callbackArticleDeleted']);
Hook::add('ArticleSearchIndex::articleChangesFinished', [$this, 'callbackArticleChangesFinished']);
Hook::add('ArticleSearchIndex::rebuildIndex', [$this, 'callbackRebuildIndex']);
Hook::add('ArticleSearch::getSimilarityTerms', [$this, 'callbackGetSimilarityTerms']);
// Register callbacks (forms).
// For custom ranking. Seems to work, but value is either not saved, or not set as seleceted after loading form
if ($customRanking) {
Hook::add('sectionform::Constructor', [$this, 'callbackSectionFormConstructor']);
Hook::add('sectionform::initdata', [$this, 'callbackSectionFormInitData']);
Hook::add('sectionform::readuservars', [$this, 'callbackSectionFormReadUserVars']);
Hook::add('sectionform::execute', [$this, 'callbackSectionFormExecute']);
Hook::add('Templates::Manager::Sections::SectionForm::AdditionalMetadata', [$this, 'callbackTemplateSectionFormAdditionalMetadata']);
}
PluginRegistry::register('blocks', new LuceneFacetsBlockPlugin($this), $this->getPluginPath());
// Register callbacks (view-level).
Hook::add('TemplateManager::display', [$this, 'callbackTemplateDisplay']);
//used to show alterative spelling suggestions
Hook::add('Templates::Search::SearchResults::PreResults', [$this, 'callbackTemplatePreResults']);
//used to show additional filters for selected facet values
Hook::add('Templates::Search::SearchResults::AdditionalFilters', [$this, 'callbackTemplateAdditionalFilters']);
// Called from template article_summary.tpl, used to add highlighted additional info to searchresult.
//As Templates::Search::SearchResults::AdditionalArticleLinks has been removed
//from OJS 3, we also need this same hook to display additionalArticleLinks .
Hook::add('Templates::Issue::Issue::Article', [$this, 'callbackTemplateSearchResultHighligtedText']);
Hook::add('Templates::Issue::Issue::Article', [$this, 'callbackTemplateSimilarDocumentsLinks']);
// Does not seem to be called anymore. Either has to be added to core search again, or we add it some other way only for lucene
Hook::add('Templates::Search::SearchResults::SyntaxInstructions', [$this, 'callbackTemplateSyntaxInstructions']);
Hook::add('Publication::unpublish', [$this, 'callbackUnpublish']);
// Instantiate the web service.
$searchHandler = $this->getSetting(CONTEXT_SITE, 'searchEndpoint');
$username = $this->getSetting(CONTEXT_SITE, 'username');
$password = $this->getSetting(CONTEXT_SITE, 'password');
$instId = $this->getSetting(CONTEXT_SITE, 'instId');
$this->_solrWebService = new SolrWebService($searchHandler, $username, $password, $instId);
}
return $success;
}
/**
* @see Plugin::getDisplayName()
*/
function getDisplayName() {
return __('plugins.generic.lucene.displayName');
}
/**
* @see Plugin::getDescription()
*/
function getDescription() {
return __('plugins.generic.lucene.description');
}
/**
* @see Plugin::getInstallSitePluginSettingsFile()
*/
function getInstallSitePluginSettingsFile() {
return $this->getPluginPath() . '/settings.xml';
}
/**
* @see Plugin::getInstallEmailTemplatesFile()
*/
function getInstallEmailTemplatesFile() {
return ($this->getPluginPath() . '/emailTemplates.xml');
}
/**
* @see Plugin::getInstallEmailTemplateDataFile()
*/
function getInstallEmailTemplateDataFile() {
return ($this->getPluginPath() . '/locale/{$installedLocale}/emailTemplates.xml');
}
/**
* @see Plugin::isSitePlugin()
*/
function isSitePlugin() {
return true;
}
//
// Implement template methods from GenericPlugin.
//
/**
* @copydoc Plugin::getActions()
*/
function getActions($request, $actionArgs) {
$router = $request->getRouter();
return array_merge(
$this->getEnabled() ? [
new LinkAction(
'settings',
new AjaxModal(
$router->url($request, null, null, 'manage', null, array_merge($actionArgs, array('verb' => 'settings'))),
$this->getDisplayName()
),
__('manager.plugins.settings'),
null
),
] : [],
parent::getActions($request, $actionArgs)
);
}
/**
* @copydoc Plugin::manage()
*/
function manage($args, $request) {
switch ($request->getUserVar('verb')) {
case 'settings':
// Instantiate an embedded server instance.
$embeddedServer = new EmbeddedServer();
// Instantiate the settings form.
$form = new LuceneSettingsForm($this, $embeddedServer);
// Handle request to save configuration data.
if ($request->getUserVar('rebuildIndex')) {
// Re-init data. It should be visible to users
// that whatever data they may have entered into
// the form was not saved.
$form->initData();
//journal = null reindexes all dictionaries
$message = null;
$journal = null;
if ($request->getUserVar('journalToReindex')) {
$journalId = $request->getUserVar('journalToReindex');
/** @var JournalDAO $journalDao */
$journalDao = DAORegistry::getDAO('JournalDAO');
$journal = $journalDao->getById($journalId);
if (! $journal instanceof \APP\journal\Journal) $journal = null;
}
$this->_rebuildIndex(false, $journal, true, false, $message);
$form->setData('rebuildIndexMessages', $message);
}
else if ($request->getUserVar('rebuildDictionaries')) {
// Re-init data. It should be visible to users
// that whatever data they may have entered into
// the form was not saved.
$form->initData();
// rebuild dictionaries
$message = '';
$this->_rebuildIndex(false, null, false, true, $message);
$form->setData('rebuildIndexMessages', $message);
}
else if ($request->getUserVar('stopServer')) {
$form->initData();
// As this is a system plug-in we follow usual
// plug-in policy and allow journal managers to start/
// stop the server although this will affect all journals
// of the installation.
$embeddedServer->stopAndWait();
}
else if ($request->getUserVar('startServer')) {
$form->initData();
$embeddedServer->start();
}
else if ($request->getUserVar('save')) {
$form->readInputData();
if ($form->validate()) {
$form->execute();
return new JSONMessage(true);
}
}
else {
// Re-init data. It should be visible to users
// that whatever data they may have entered into
// the form was not saved.
$form->initData();
}
return new JSONMessage(true, $form->fetch($request));
}
return parent::manage($args, $request);
}
//
// Application level hook implementations.
//
/**
* @see PluginRegistry::loadCategory()
*/
function callbackLoadCategory($hookName, $args) {
// We only contribute to the block plug-in category.
$category = $args[0];
if ($category != 'blocks') return false;
// We only contribute a plug-in if at least one
// faceting category is enabled.
$enabledFacetCategories = $this->_getEnabledFacetCategories();
if (empty($enabledFacetCategories)) return false;
// Instantiate the block plug-in for facets.
$luceneFacetsBlockPlugin = new LuceneFacetsBlockPlugin($this);
// Add the plug-in to the registry.
$plugins =& $args[1];
$seq = $luceneFacetsBlockPlugin->getSeq();
if (!isset($plugins[$seq])) $plugins[$seq] = [];
$plugins[$seq][$luceneFacetsBlockPlugin->getPluginPath()] = $luceneFacetsBlockPlugin;
return false;
}
/**
* @see PKPPageRouter::route()
*/
function callbackLoadHandler($hookName, $args) {
// Check the page.
$page = $args[0];
if ($page !== 'lucene') return;
// Check the operation.
$op = $args[1];
$handler = & $args[3];
$publicOps = [
'queryAutocomplete',
'pullChangedArticles',
'similarDocuments',
];
if (!in_array($op, $publicOps)) return;
// Get the journal object from the context (optimized).
$request = Application::get()->getRequest();
$router = $request->getRouter();
$journal = $router->getContext($request);
/* @var $journal Journal */
// Looks as if our handler had been requested.
$handler = new LuceneHandler($this);
return true;
}
//
// Controller level hook implementations.
//
/**
* @see ArticleSearch::getResultSetOrderingOptions()
*/
public function callbackGetResultSetOrderingOptions(string $hookName, array $params) {
$resultSetOrderingOptions =& $params[1];
// FIXME: not implemented
}
public function callbackRetrieveResults(string $hookName, array $params) {
assert($hookName == 'SubmissionSearch::retrieveResults');
// Unpack the parameters.
list($journal, $keywords, $fromDate, $toDate, $orderBy, $orderDir, $exclude, $page, $itemsPerPage) = $params;
$totalResults =& $params[9]; // need to use reference
$error =& $params[10]; // need to use reference
$results =& $params[11];
// Instantiate a search request.
$searchRequest = new SolrSearchRequest();
$searchRequest->setJournal($journal);
$searchRequest->setFromDate($fromDate);
$searchRequest->setToDate($toDate);
if (isset($keywords[SUBMISSION_SEARCH_AUTHOR])) $searchRequest->setAuthors($keywords[SUBMISSION_SEARCH_AUTHOR]);
$searchRequest->setOrderBy($orderBy);
$searchRequest->setOrderDir($orderDir == 'asc' ? true : false);
$searchRequest->setPage($page);
$searchRequest->setItemsPerPage($itemsPerPage);
$searchRequest->addQueryFromKeywords($keywords);
$searchRequest->setExcludedIds($exclude);
// Get the ordering criteria.
list($orderBy, $orderDir) = $this->_getResultSetOrdering($journal);
$searchRequest->setOrderBy($orderBy);
$searchRequest->setOrderDir($orderDir == 'asc' ? true : false);
// Configure alternative spelling suggestions.
$spellcheck = (boolean) $this->getSetting(CONTEXT_SITE, 'spellcheck');
$searchRequest->setSpellcheck($spellcheck);
// Configure highlighting.
$highlighting = (boolean) $this->getSetting(CONTEXT_SITE, 'highlighting');
$searchRequest->setHighlighting($highlighting);
// Configure faceting.
// 1) Faceting will be disabled for filtered search categories.
$activeFilters = array_keys($searchRequest->getQuery());
if ($journal instanceof \APP\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 = (boolean) $this->getSetting(CONTEXT_SITE, 'customRanking');
if ($customRanking) {
if ($journal instanceof \APP\journal\Journal) {
$sections = Repo::section()->getCollector()->filterByContextIds([$journal->getId()])->getMany();
} else {
$sections = Repo::section()->getCollector()->getMany();
}
foreach ($sections as $section) {
$sectionBoost = (float) $section->getData('rankingBoost');
if ($sectionBoost != null && $sectionBoost != LUCENE_PLUGIN_DEFAULT_RANKING_BOOST) {
$searchRequest->addBoostFactor(
'section_id', $section->getId(), $sectionBoost
);
}
}
unset($sections);
}
// Call the solr web service.
$solrWebService = $this->getSolrWebService();
$result = $solrWebService->retrieveResults($searchRequest, $totalResults, $this->getSetting(CONTEXT_SITE, 'useSolr7'));
if (is_null($result)) {
$error = $solrWebService->getServiceMessage();
$this->_informTechAdmin($error, $journal, true);
$error .= ' ' . __('plugins.generic.lucene.message.techAdminInformed');
return [];
} else {
// Store spelling suggestion, highlighting and faceting info
// internally. We cannot route these back through the request
// as the default search implementation does not support
// these features.
if ($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 SUBMISSION_SEARCH_INDEX_TERMS:
$queryField = 'indexTerms';
break;
default:
$articleSearch = new ArticleSearch();
$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'])) {
$results = $result['scoredResults'];
}
return true;
}
}
/**
* @see ArticleSearchIndex::articleMetadataChanged()
*/
function callbackArticleMetadataChanged($hookName, $params) {
assert($hookName == 'ArticleSearchIndex::articleMetadataChanged');
list($article) = $params;
/** @var Submission $article */
$this->_solrWebService->setArticleStatus($article->getId());
// in OJS core in many cases callbackArticleChangesFinished is not called.
// So we call it ourselves, it won't do anything is pull-indexing is active
$this->callbackArticleChangesFinished(null, null, $article->getData('contextId'));
return true;
}
/**
* @see ArticleSearchIndex::submissionFilesChanged()
*/
function callbackSubmissionFilesChanged($hookName, $params) {
assert($hookName == 'ArticleSearchIndex::submissionFilesChanged');
list($article) = $params;
/** @var Submission $article */
$this->_solrWebService->setArticleStatus($article->getId());
return true;
}
/**
* @see ArticleSearchIndex::submissionFileChanged()
*/
function callbackSubmissionFileChanged($hookName, $params) {
assert($hookName == 'ArticleSearchIndex::submissionFileChanged');
list($articleId, $type, $fileId) = $params;
$this->_solrWebService->setArticleStatus($article->getId());
// in OJS core in many cases callbackArticleChangesFinished is not called.
// So we call it ourselves, it won't do anything is pull-indexing is active
$this->callbackArticleChangesFinished(null, null,$article->getData('contextId'));
return true;
}
/**
* @see ArticleSearchIndex::submissionFileDeleted()
*/
function callbackSubmissionFileDeleted($hookName, $params) {
assert($hookName == 'ArticleSearchIndex::submissionFileDeleted');
list($articleId, $type, $assocId) = $params;
$this->_solrWebService->setArticleStatus($article->getId());
return true;
}
/**
* @see ArticleSearchIndex::articleDeleted()
*/
function callbackArticleDeleted($hookName, $params) {
assert($hookName == 'ArticleSearchIndex::articleDeleted');
list($articleId) = $params;
// Deleting an article must always be done synchronously
// (even in pull-mode) as we'll no longer have an object
// to keep our change information.
$this->_solrWebService->deleteArticleFromIndex($articleId);
return true;
}
function callbackUnpublish($hookName, $params) {
list($newPublication, $publication, $submission) = $params;
$solrWebService = $this->getSolrWebService();
$solrWebService->deleteArticleFromIndex($submission->getId());
return true;
}
/**
* @see ArticleSearchIndex::articleChangesFinished()
*/
function callbackArticleChangesFinished($hookName, $params, $journalId = null) {
// In the case of pull-indexing we ignore this call
// and let the Solr server initiate indexing.
if ($this->getSetting(CONTEXT_SITE, 'pullIndexing')) return true;
// If the plugin is configured to push changes to the
// server then we'll now batch-update all articles that
// changed since the last update. We use a batch size of 5
// for online index updates to limit the time a request may be
// locked in case a race condition with a large index update
// occurs.
$solrWebService = $this->getSolrWebService();
$result = $solrWebService->pushChangedArticles(5, $journalId);
if (is_null($result)) {
$this->_informTechAdmin($solrWebService->getServiceMessage());
}
return true;
}
/**
* @see ArticleSearchIndex::rebuildIndex()
*/
function callbackRebuildIndex($hookName, $params) {
assert($hookName == 'ArticleSearchIndex::rebuildIndex');
// Unpack the parameters.
list($log, $journal, $switches) = $params;
// Check switches.
$rebuildIndex = true;
$rebuildDictionaries = false;
//$updateBoostFile = false;
if (is_array($switches)) {
if (in_array('-n', $switches)) {
$rebuildIndex = false;
}
if (in_array('-d', $switches)) {
$rebuildDictionaries = true;
}
/*
if (in_array('-b', $switches)) {
$updateBoostFile = true;
}*/
}
// Rebuild the index.
$messages = null;
$this->_rebuildIndex($log, $journal, $rebuildIndex, $rebuildDictionaries, $messages);
return true;
}
/**
* @see ArticleSearch::getSimilarityTerms()
*/
function callbackGetSimilarityTerms($hookName, $params) {
$articleId = $params[0];
$searchTerms =& $params[1];
// Identify "interesting" terms of the
// given article and return them "by ref".
$solrWebService = $this->getSolrWebService();
$searchTerms = $solrWebService->getInterestingTerms($articleId);
return true;
}
//
// Form hook implementations.
//
/**
* @see Form::__construct()
*/
function callbackSectionFormConstructor($hookName, $params) {
// Check whether we got a valid ranking boost option.
$acceptedValues = array_keys($this->_getRankingBoostOptions());
$form =& $params[0];
$form->addCheck(
new FormValidatorInSet(
$form, 'rankingBoostOption', FORM_VALIDATOR_REQUIRED_VALUE,
'plugins.generic.lucene.sectionForm.rankingBoostInvalid',
$acceptedValues
)
);
return false;
}
/**
* @see Form::initData()
*/
function callbackSectionFormInitData($hookName, $params) {
$form =& $params[0];
/* @var $form SectionForm */
// Read the section's ranking boost.
$rankingBoost = LUCENE_PLUGIN_DEFAULT_RANKING_BOOST;
$journal = Application::get()->getRequest()->getJournal();
$section = null;
if ($form->getSectionId()) {
$section = Repo::section()->get($form->getSectionId(), $journal->getId());
}
if ($section instanceof \APP\section\Section) {
$rankingBoostSetting = $section->getData('rankingBoost');
if (is_numeric($rankingBoostSetting)) $rankingBoost = (float) $rankingBoostSetting;
}
// The ranking boost is a floating-poing multiplication
// factor (0, 0.5, 1, 2). Translate this into an integer
// option value (0, 1, 2, 4).
$rankingBoostOption = (int) ($rankingBoost * 2);
$rankingBoostOptions = $this->_getRankingBoostOptions();
if (!in_array($rankingBoostOption, array_keys($rankingBoostOptions))) {
$rankingBoostOption = (int) (LUCENE_PLUGIN_DEFAULT_RANKING_BOOST * 2);
}
$form->setData('rankingBoostOption', $rankingBoostOption);
return false;
}
/**
* @see Form::readUserVars()
*/
function callbackSectionFormReadUserVars($hookName, $params) {
$userVars =& $params[1];
$userVars[] = 'rankingBoostOption';
return false;
}
/**
* Callback for execution upon section form save
* @param $hookName string
* @param $params array
* @return mixed
*/
function callbackSectionFormExecute($hookName, $params) {
// Convert the ranking boost option back into a ranking boost factor.
$form =& $params[0];
/* @var $form SectionForm */
$rankingBoostOption = $form->getData('rankingBoostOption');
$rankingBoostOptions = $this->_getRankingBoostOptions();
if (in_array($rankingBoostOption, array_keys($rankingBoostOptions))) {
$rankingBoost = ((float) $rankingBoostOption) / 2;
}
else {
$rankingBoost = LUCENE_PLUGIN_DEFAULT_RANKING_BOOST;
}
$journal = Application::get()->getRequest()->getJournal();
// Get or create the section object
if ($form->getSectionId()) {
$section = Repo::section()->get($form->getSectionId(), $journal->getId());
// Update the ranking boost of the section.
$section->setData('rankingBoost', $rankingBoost);
Repo::section()->edit($section, ['rankingBoost']);
}
return false;
}
//
// View level hook implementations.
//
/**
* @see TemplateManager::display()
*/
function callbackTemplateDisplay($hookName, $params) {
$template = $params[1];
if ($template == 'frontend/pages/indexSite.tpl') return false;
// avoid recursive calls of the template
if (strpos($template,'plugins-') !== false) return false;
if (strpos($template,'frontend/pages/') === false) return false;
// Get the request.
$request = Application::get()->getRequest();
// Get the context
$journal = $request->getContext();
// Assign our private stylesheet.
/** @var TemplateManager */
$templateMgr = $params[0];
$templateMgr->addStylesheet('lucene', $request->getBaseUrl() . '/' . $this->getPluginPath() . '/templates/lucene.css');
// Result set ordering options.
$orderByOptions = $this->_getResultSetOrderingOptions($journal);
$templateMgr->assign('luceneOrderByOptions', $orderByOptions);
$orderDirOptions = $this->_getResultSetOrderingDirectionOptions();
$templateMgr->assign('luceneOrderDirOptions', $orderDirOptions);
// Similar documents.
if ($this->getSetting(CONTEXT_SITE, 'simdocs')) {
$templateMgr->assign('simDocsEnabled', true);
}
if ($this->getSetting(CONTEXT_SITE, 'autosuggest')) {
$templateMgr->assign('enableAutosuggest', true);
$templateMgr->display('extends:'.$template.'|'.$this->getTemplateResource('luceneSearch.tpl'));
return true;
}
return false;
}
/**
* @see templates/search/searchResults.tpl
*/
function callbackTemplatePreResults($hookName, $params) {
$request = Application::get()->getRequest();
$templateMgr = TemplateManager::getManager($request);
// The spelling suggestion value is set in
// LucenePlugin::callbackRetrieveResults(), see there.
$templateMgr->assign('spellingSuggestion', $this->_spellingSuggestion);
$templateMgr->assign(
'spellingSuggestionUrlParams',
[$this->_spellingSuggestionField => $this->_spellingSuggestion]
);
$templateMgr->display($this->getTemplateResource('preResults.tpl'));
return false;
}
function callbackTemplateAdditionalFilters($hookName, $params) {
$request = Application::get()->getRequest();
$templateMgr = TemplateManager::getManager($request);
$smarty =& $params[1];
$enabledFacets = $this->_getEnabledFacetCategories();
$facets = $this->getFacets();
$selectedFacets = [];
foreach ($enabledFacets as $currentFacet) {
if ($currentValue = $smarty->getTemplateVars($currentFacet)) {
$facetDisplayName = __('plugins.generic.lucene.faceting.' . $currentFacet);
//author is already available in standard filtersection, so we don't show that again
if ($currentFacet != "authors") {
$selectedFacets[$currentFacet] = ['facetDisplayName' => $facetDisplayName,
'facetValue' => $currentValue
];
}
}
}
$templateMgr->assign('selectedFacets', $selectedFacets);
$templateMgr->display($this->getTemplateResource('additionalFilters.tpl'));
return false;
}
/**
* @see templates/frontend/objects/article_summary.tpl
*/
function callbackTemplateSearchResultHighligtedText($hookName, $params) {
$smarty =& $params[1];
$article = $smarty->getTemplateVars('article');
// Check whether the "highlighting" feature is enabled.
if (!$this->getSetting(CONTEXT_SITE, 'highlighting')) return false;
// Check and prepare the article parameter.
if (!(isset($article) && is_numeric($article->getId()))) {
return false;
}
$articleId = $article->getId();
// Check whether we have highlighting info for the given article.
if (!isset($this->_highlightedArticles[$articleId])) return false;
// Return the excerpt (a template seems overkill here).
// Escaping should have been taken care of when analyzing the text, so
// there should be no XSS risk here (but we need the <em> tag in the
// highlighted result).
$output =& $params[2];
$output .= '<div class="plugins_generic_lucene_highlighting">... '
. trim($this->_highlightedArticles[$articleId]) . ' ..."</div>';
return false;
}
/**
* @see templates/search/searchResults.tpl
*/
function callbackTemplateSimilarDocumentsLinks($hookName, $params) {
// Check whether the "similar documents" feature is
// enabled.
if (!$this->getSetting(0, 'simdocs')) return false;
$smarty =& $params[1];
$article = $smarty->getTemplateVars('article');
// Check and prepare the article parameter.
if (!(isset($article) && is_numeric($article->getId()))) {
return false;
}
$urlParams = ['articleId' => $article->getId()];
// Create a URL that links to "similar documents".
$request = Application::get()->getRequest();
$router = $request->getRouter();
$simdocsUrl = $router->url(
$request, null, 'lucene', 'similarDocuments', null, $urlParams
);
// Return a link to the URL (a template seems overkill here).
$output =& $params[2];
$output .= '<div class="plugins_generic_lucene_similardocuments"><a href="' . $simdocsUrl . '" class="file">'
. __('plugins.generic.lucene.results.similarDocuments')
. '</a></div>';
return false;
}
/**
* @see templates/search/searchResults.tpl
*/
function callbackTemplateSyntaxInstructions($hookName, $params) {
$output =& $params[2];
$output .= __('plugins.generic.lucene.results.syntaxInstructions');
return false;
}
/**
* @see templates/manager/sections/sectionForm.tpl
*/
function callbackTemplateSectionFormAdditionalMetadata($hookName, $params) {
// Assign the ranking boost options to the template.
$request = Application::get()->getRequest();
$templateMgr = TemplateManager::getManager($request);
$templateMgr->assign('rankingBoostOptions', $this->_getRankingBoostOptions());;
$templateMgr->display($this->getTemplateResource('additionalSectionMetadata.tpl'));
return false;
}
/**
* Return the available options for result
* set ordering.
* @param $journal Journal
* @return array
*/
function _getResultSetOrderingOptions($journal) {
$resultSetOrderingOptions = [];
if ($this->getSetting(CONTEXT_SITE, 'orderByRelevance')) {
$resultSetOrderingOptions['score'] = __('plugins.generic.lucene.results.orderBy.relevance');
}
if ($this->getSetting(CONTEXT_SITE, 'orderByAuthor')) {
$resultSetOrderingOptions['authors'] = __('plugins.generic.lucene.results.orderBy.author');
}
if ($this->getSetting(CONTEXT_SITE, 'orderByIssue')) {
$resultSetOrderingOptions['issuePublicationDate'] = __('plugins.generic.lucene.results.orderBy.issue');
}
if ($this->getSetting(CONTEXT_SITE, 'orderByDate')) {
$resultSetOrderingOptions['publicationDate'] = __('plugins.generic.lucene.results.orderBy.date');
}
if ($this->getSetting(CONTEXT_SITE, 'orderByArticle')) {
$resultSetOrderingOptions['title'] = __('plugins.generic.lucene.results.orderBy.article');
}
// Only show the "journal title" option if we have several journals.
if (! $journal instanceof \APP\journal\Journal && $this->getSetting(CONTEXT_SITE, 'orderByJournal')) {
$resultSetOrderingOptions['journalTitle'] = __('plugins.generic.lucene.results.orderBy.journal');
}
return $resultSetOrderingOptions;
}
/**
* Return the available options for the result
* set ordering direction.