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<?php |
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/** |
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* @package midcom.helper.search |
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* @author CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @copyright CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @license http://www.gnu.org/licenses/gpl.html GNU General Public License |
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*/ |
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use Symfony\Component\HttpFoundation\Request; |
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/** |
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* Search handler |
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* |
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* @package midcom.helper.search |
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*/ |
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class midcom_helper_search_handler_search extends midcom_baseclasses_components_handler |
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{ |
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/** |
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* Search form handler, nothing to do here. |
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* |
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* It uses the handler ID to distinguish between basic and advanced search forms. |
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*/ |
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public function _handler_searchform(Request $request, string $handler_id) |
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{ |
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$this->prepare_formdata($handler_id, $request); |
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$this->populate_toolbar($request); |
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return $this->show('search_form'); |
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} |
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private function prepare_formdata(string $handler_id, Request $request) |
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{ |
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$this->_request_data['query'] = $this->fetch($request, 'query', ''); |
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if ($handler_id === 'advanced') { |
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$this->_request_data['request_topic'] = trim($this->fetch($request, 'topic', '')); |
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$this->_request_data['component'] = trim($this->fetch($request, 'component', '')); |
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$this->_request_data['lastmodified'] = (int) trim($this->fetch($request, 'lastmodified', '0')); |
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$this->_request_data['topics'] = ['' => $this->_l10n->get('search anywhere')]; |
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$this->_request_data['components'] = ['' => $this->_l10n->get('search all content types')]; |
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$nap = new midcom_helper_nav(); |
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$this->search_nodes($nap->get_node($nap->get_root_node()), $nap, ''); |
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} |
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$this->_request_data['type'] = $handler_id; |
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} |
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private function fetch(Request $request, string $field, $default = null, bool $is_array = false) |
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{ |
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if ($is_array) { |
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$method = 'all'; |
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$default ??= []; |
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} else { |
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$method = 'get'; |
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} |
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if ($request->request->has($field)) { |
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return $request->request->$method($field); |
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} |
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return $request->query->$method($field, $default); |
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} |
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/** |
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* Prepare the topic and component listings, this is a bit work intensive though, |
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* we need to traverse everything. |
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*/ |
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private function search_nodes(array $node, midcom_helper_nav $nap, string $prefix) |
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{ |
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if ( !array_key_exists($node[MIDCOM_NAV_COMPONENT], $this->_request_data['components']) |
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&& $node[MIDCOM_NAV_COMPONENT] != 'midcom.helper.search') { |
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$l10n = $this->_i18n->get_l10n($node[MIDCOM_NAV_COMPONENT]); |
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$this->_request_data['components'][$node[MIDCOM_NAV_COMPONENT]] = $l10n->get($node[MIDCOM_NAV_COMPONENT]); |
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} |
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$this->_request_data['topics'][$node[MIDCOM_NAV_FULLURL]] = "{$prefix}{$node[MIDCOM_NAV_NAME]}"; |
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// Recurse |
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$prefix .= "{$node[MIDCOM_NAV_NAME]} › "; |
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foreach ($nap->get_nodes($node[MIDCOM_NAV_ID]) as $sub_node) { |
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$this->search_nodes($sub_node, $nap, $prefix); |
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} |
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} |
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/** |
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* Expand arrays of custom rules to end of query |
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* |
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* @param string $final_query reference to the query string to be passed on to the indexer. |
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* @param mixed $terms array or string to append |
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*/ |
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private function append_terms_recursive(string &$final_query, $terms) |
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{ |
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if (is_array($terms)) { |
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foreach ($terms as $term) { |
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$this->append_terms_recursive($final_query, $term); |
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} |
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} elseif (is_string($terms)) { |
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$final_query .= $terms; |
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} else { |
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debug_add('Don\'t know how to handle terms of type: ' . gettype($terms), MIDCOM_LOG_ERROR); |
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debug_print_r('$terms', $terms); |
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} |
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} |
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/** |
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* Queries the information from the index and prepares to display the result page. |
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*/ |
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public function _handler_result(Request $request, array &$data) |
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{ |
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$type = $this->fetch($request, 'type', 'basic'); |
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// If we don't have a query string, relocate to empty search form |
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if (!$request->request->has('query') && !$request->query->has('query')) { |
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debug_add('$_REQUEST["query"] is not set, relocating back to form', MIDCOM_LOG_INFO); |
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return new midcom_response_relocate($this->router->generate($type)); |
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} |
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$this->prepare_formdata($type, $request); |
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if ( count(explode(' ', $data['query'])) == 1 |
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&& !str_contains($data['query'], '*') |
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&& $this->_config->get('single_term_auto_wildcard')) { |
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//If there is only one search term append * to the query if auto_wildcard is enabled |
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$data['query'] .= '*'; |
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} |
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if ($type == 'basic') { |
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$final_query = $data['query']; |
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debug_add("Final query: {$final_query}"); |
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$result = midcom::get()->indexer->query($final_query); |
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} elseif ($type == 'advanced') { |
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$result = $this->do_advanced_query($data, $this->fetch($request, 'append_terms', is_array: true)); |
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} else { |
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throw new midcom_error_notfound('unknown query type'); |
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} |
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$this->process_results($result, (int) $this->fetch($request, 'page', 1)); |
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$this->populate_toolbar($request); |
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if ($data['document_count'] > 0) { |
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return $this->show('results'); |
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} |
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return $this->show('no_match'); |
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} |
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private function populate_toolbar(Request $request) |
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{ |
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$other_type = ($this->_request_data['type'] == 'advanced') ? 'basic' : 'advanced'; |
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$this->_request_data['params'] = ''; |
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if ($request->query->count() > 0) { |
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$request->query->set('type', $other_type); |
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$this->_request_data['params'] = '?' . $request->getQueryString(); |
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} |
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$url = ''; |
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if ($this->_request_data['type'] == 'basic') { |
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$url = 'advanced/'; |
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} |
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$this->_view_toolbar->add_item([ |
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MIDCOM_TOOLBAR_URL => $url . $this->_request_data['params'], |
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MIDCOM_TOOLBAR_LABEL => $this->_l10n->get($other_type . ' search'), |
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MIDCOM_TOOLBAR_GLYPHICON => 'search', |
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]); |
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} |
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private function process_results(array $result, int $page) |
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{ |
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$count = count($result); |
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$this->_request_data['document_count'] = $count; |
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if ($count == 0) { |
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midcom::get()->cache->content->uncached(); |
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} else { |
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$results_per_page = $this->_config->get('results_per_page'); |
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$max_pages = ceil($count / $results_per_page); |
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$page = min($page, $max_pages); |
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$first_document_id = ($page - 1) * $results_per_page; |
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$last_document_id = min(($count - 1), (($page * $results_per_page) - 1)); |
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$this->_request_data['page'] = $page; |
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$this->_request_data['max_pages'] = $max_pages; |
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$this->_request_data['first_document_number'] = $first_document_id + 1; |
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$this->_request_data['last_document_number'] = $last_document_id + 1; |
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$this->_request_data['shown_documents'] = $last_document_id - $first_document_id + 1; |
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$this->_request_data['result'] = array_slice($result, $first_document_id, $results_per_page); |
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// Register GUIDs for cache engine |
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foreach ($this->_request_data['result'] as $doc) { |
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if (!mgd_is_guid($doc->source)) { |
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// Non-Midgard results don't need to go through cache registration |
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continue; |
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} |
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midcom::get()->cache->content->register($doc->source); |
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} |
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reset($this->_request_data['result']); |
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} |
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} |
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private function do_advanced_query(array &$data, $append_terms) : array |
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{ |
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$filter = new midcom_services_indexer_filter_chained; |
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if ($data['lastmodified'] > 0) { |
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$filter->add_filter(new midcom_services_indexer_filter_date('__EDITED', $data['lastmodified'], 0)); |
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} |
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$final_query = ''; |
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if ($data['query'] != '') { |
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$final_query = (midcom::get()->config->get('indexer_backend') == 'solr') ? $data['query'] : "({$data['query']})"; |
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} |
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if ($data['request_topic'] != '') { |
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$filter->add_filter(new midcom_services_indexer_filter_string('__TOPIC_URL', '"' . $data['request_topic'] . '*"')); |
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} |
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if ($data['component'] != '') { |
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$filter->add_filter(new midcom_services_indexer_filter_string('__COMPONENT', $data['component'])); |
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} |
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// Way to add very custom terms |
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if ($append_terms) { |
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$this->append_terms_recursive($final_query, $append_terms); |
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} |
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debug_add("Final query: {$final_query}"); |
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if ($filter->count() == 0) { |
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$filter = null; |
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} |
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return midcom::get()->indexer->query($final_query, $filter); |
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} |
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/** |
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* Prepare OpenSearch data file for browser search bar integration. |
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*/ |
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public function _handler_opensearchdescription(array &$data) |
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{ |
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midcom::get()->cache->content->content_type("application/opensearchdescription+xml; charset=UTF-8"); |
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midcom::get()->skip_page_style = true; |
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$data['node'] = $this->_topic; |
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return $this->show('opensearch_description'); |
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} |
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} |
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flack /
openpsa
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