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materio-d8/web/modules/custom/materio_sapi/src/Controller/Base.php
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PHP

<?php
// https://www.drupal.org/docs/8/modules/search-api/developer-documentation/executing-a-search-in-code
namespace Drupal\materio_sapi\Controller;
use Drupal\Core\Controller\ControllerBase;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Drupal\Component\Utility\Tags;
use Drupal\Component\Utility\Unicode;
use Drupal\search_api\Entity\Index;
// https://drupal.stackexchange.com/questions/225008/programatically-use-search-api
/**
* Defines a route controller for materio sapi search (regular and ajax).
*/
class Base extends ControllerBase {
private $limit = 15;
private $offset = 0;
private function sapiQuery(){
// https://www.drupal.org/docs/8/modules/search-api/developer-documentation/executing-a-search-in-code
// https://www.hashbangcode.com/article/drupal-8-date-search-boosting-search-api-and-solr-search
// https://kgaut.net/blog/2018/drupal-8-search-api-effectuer-une-requete-dans-le-code.html
$lang = \Drupal::languageManager()->getCurrentLanguage()->getId();
$this->index = Index::load('database');
$this->results = [
'uuids' => [],
'nids' => []
];
// AND QUERY
$this->and_query = $this->index->query(['offset'=>0,'limit'=>10000]);
// set parse mode and conjunction
$parse_mode = \Drupal::service('plugin.manager.search_api.parse_mode')
->createInstance('terms');
$parse_mode->setConjunction('AND');
$this->and_query->setParseMode($parse_mode);
// Set fulltext search keywords and fields.
$this->and_query->keys($this->keys);
// $this->and_query->setFulltextFields(['field_reference']);
// in case we search for material references like W0117
if (preg_match_all('/[WTRPCMFGSO]\d{4}/i', $this->keys, $matches)) {
$ref_conditions = $this->and_query->createConditionGroup('OR');
foreach ($matches[0] as $key => $value) {
$ref_conditions->addCondition('field_reference', $value);
}
$this->and_query->addConditionGroup($ref_conditions);
}
// in case of term id provided restrict the keys to taxo fields
if ($this->term) {
$term_conditions = $this->and_query->createConditionGroup('OR');
$term = (int) $this->term;
foreach (['tag_tid', 'thesaurus_tid'] as $field) {
$term_conditions->addCondition($field, $term);
}
$this->and_query->addConditionGroup($term_conditions);
// INSTEAD TRY TO BOOST THE TAG AND THESAURUS FIELDS
// foreach ($taxoSolrFieldsName as $fname) {
// // $solarium_query->addParam('bf', "recip(abs(ms(NOW,{$solrField})),3.16e-11,10,0.1)");
// $bfparam = "if(gt(termfreq({$fname},{$this->term}),0),^21,0)";
// $this->or_query->addParam('bf', $bfparam);
// }
// look @ materio_sapi_search_api_solr_query_alter in materio_sapi.module
// $this->or_query->setOption('termid', $this->term);
}
// FILTERS
if ($this->filters) {
$filters_conditions = $this->and_query->createConditionGroup('AND');
foreach ($this->filters as $filter) {
$filter = (int) $filter;
foreach (['tag_tid', 'thesaurus_tid'] as $field) {
$filters_conditions->addCondition($field, $filter);
}
}
$this->and_query->addConditionGroup($filters_conditions);
}else{
// Recherche uniquement sur le champ « body »
$this->and_query->setFulltextFields([
'thesaurus_name_0',
'thesaurus_synonyms_0',
'thesaurus_name_1',
'thesaurus_synonyms_1',
'thesaurus_name_2',
'thesaurus_synonyms_2',
'thesaurus_name_3',
'thesaurus_synonyms_3',
'thesaurus_name_4',
'thesaurus_synonyms_4',
'thesaurus_name',
'thesaurus_synonyms',
'tag_name',
'tag_synonyms'
]);
}
// Restrict the search to specific languages.
$this->and_query->setLanguages([$lang]);
// Do paging.
// $this->and_query->range($this->offset, $this->limit);
// retrieve all results
// $this->and_query->range(0, -1);
// Add sorting.
$this->and_query->sort('search_api_relevance', 'DESC');
// Set one or more tags for the query.
// @see hook_search_api_query_TAG_alter()
// @see hook_search_api_results_TAG_alter()
$this->and_query->addTag('materio_sapi_search_and_query');
$and_results = $this->and_query->execute();
foreach ($and_results as $result) {
$this->results['uuids'][] = $result->getField('uuid')->getValues()[0];
$this->results['nids'][] = $result->getField('nid')->getValues()[0];
}
//
// OR QUERY
//
$this->or_query = $this->index->query(['offset'=>0,'limit'=>10000]);
// Change the parse mode for the search.
// Les différentes possibilités sont
// - « direct » => Requête directe
// - « terms » => Multiple words
// - « phrase » => Single phrase
// - " edismax " => ???
$or_parse_mode = \Drupal::service('plugin.manager.search_api.parse_mode')
->createInstance('direct');
$or_parse_mode->setConjunction('OR');
$this->or_query->setParseMode($or_parse_mode);
// Set fulltext search keywords and fields.
$this->or_query->keys($this->keys);
// $this->or_query->setFulltextFields(['field_reference']);
// exclude results from and_query
$exclude_and_results_conditions = $this->or_query->createConditionGroup('AND');
foreach ($this->results['nids'] as $nid) {
$exclude_and_results_conditions->addCondition('nid', $nid, '<>');
}
$this->or_query->addConditionGroup($exclude_and_results_conditions);
// Restrict the search to specific languages.
$this->or_query->setLanguages([$lang]);
// Do paging.
// $this->or_query->range($this->offset, $this->limit);
// retrieve all results
// $this->or_query->range(0, -1);
// Add sorting.
$this->or_query->sort('search_api_relevance', 'DESC');
// Set one or more tags for the query.
// @see hook_search_api_query_TAG_alter()
// @see hook_search_api_results_TAG_alter()
$this->or_query->addTag('materio_sapi_search_or_query');
$or_results = $this->or_query->execute();
foreach ($or_results as $result) {
$this->results['uuids'][] = $result->getField('uuid')->getValues()[0];
$this->results['nids'][] = $result->getField('nid')->getValues()[0];
}
}
private function defaultQuery(){
$lang = \Drupal::languageManager()->getCurrentLanguage()->getId();
$entity_storage = \Drupal::entityTypeManager()->getStorage('node');
$this->query = $entity_storage->getQuery()
->condition('type', ['materiau', 'thematique'], 'IN')
->condition('status', '1')
->condition('langcode', $lang)
->range($this->offset, $this->limit)
->accessCheck(TRUE)
->sort('created', 'DESC');
// ->condition('field_example', 'test_value')
$this->results = $this->query->execute();
$this->count_query = $entity_storage->getQuery()
->condition('type', ['materiau', 'thematique'], 'IN')
->condition('langcode', $lang)
->accessCheck(TRUE)
->condition('status', '1')
->count();
$this->count = $this->count_query->execute();
}
/**
* get params from request
*/
private function parseRequest(Request $request){
// Get the typed string from the URL, if it exists.
$this->keys = $request->query->get('keys');
if($this->keys){
$this->keys = Unicode::strtolower($this->keys);
// $this->keys = Tags::explode($this->keys);
\Drupal::logger('materio_sapi')->notice($this->keys);
}
// get the exacte term id in case of autocomplete
$this->term = $request->query->get('term');
// get the filters of advanced search
$f = $request->query->get('filters');
$this->filters = strlen($f) ? explode(',', $f) : null;
// $this->allparams = $request->query->all();
// $request->attributes->get('_raw_variables')->get('filters')
//
$this->offset = $request->query->get('offset') ?? $this->offset;
$this->limit = $request->query->get('limit') ?? $this->limit;
}
/**
* Handler for ajax search.
*/
public function getResults(Request $request) {
$this->parseRequest($request);
$resp = [
'range' => array(
'offset' => $this->offset,
'limit' => $this->limit
),
];
if ($this->keys) {
$this->sapiQuery();
$resp['keys'] = $this->keys;
$resp['term'] = $this->term;
// $resp['count'] = $this->results->getResultCount();
$resp['count'] = count($this->results['nids']);
$resp['infos'] = t('The search found @count result(s) with keywords @keys.', array(
"@count" => $resp['count'],
"@keys" => $this->keys
));
// $resp['options'] = $this->query->getOptions();
// $uuids = [];
// $nids = [];
// foreach ($this->results as $result) {
// $uuids[] = $result->getField('uuid')->getValues()[0];
// $nids[] = $result->getField('nid')->getValues()[0];
// }
$resp['nids'] = array_slice($this->results['nids'], $this->offset, $this->limit);
$resp['uuids'] = array_slice($this->results['uuids'], $this->offset, $this->limit);
} else {
// no keys or terms to search for
// display the default base page
$this->defaultQuery();
// $uuids = [];
$nids = [];
// Using entityTypeManager
// Get a node storage object.
// $node_storage = \Drupal::entityTypeManager()->getStorage('node');
foreach ($this->results as $result) {
// $lang = \Drupal::languageManager()->getCurrentLanguage()->getId();
// Load a single node.
// $node = $node_storage->load($result);
// check if has translation
// i used to filter like bellow because of a graphql probleme
// if ($node->hasTranslation($lang)) {
$nids[] = $result;
// }
}
// $resp['uuids'] = $uuids;
$resp['nids'] = $nids;
$resp['count'] = $this->count;
$resp['infos'] = t('Please use the search form to search from our @count materials.', array(
"@count" => $resp['count']
));
}
return new JsonResponse($resp);
}
/**
* Handler for regular page search.
*/
function pageHandler(Request $request){
// \Drupal::logger('materio_sapi')->notice(print_r($request, true));
$this->parseRequest($request);
$resp = [
"#title" => 'Base'
];
if ($this->keys) {
$resp['#title'] = $this->keys;
// $this->sapiQuery();
// $node_storage = \Drupal::entityTypeManager()->getStorage('node');
// $node_view_builder = \Drupal::entityTypeManager()->getViewBuilder('node');
// // $items = $this->results->getResultItems();
// $nids = $this->results['nids'];
// $this->items = [];
// foreach ($nids as $nid) {
// // \Drupal::logger('materio_sapi')->notice(print_r($nid, true));
// try {
// /** @var \Drupal\Core\Entity\EntityInterface $entity */
// // $entity = $item->getOriginalObject()->getValue();
// $entity = $node_storage->load($nid);
// }
// catch (SearchApiException $e) {
// continue;
// }
// if (!$entity) {
// continue;
// }
// // TODO: define dynamicly viewmode
// $this->items[] = $node_view_builder->view($entity, 'teaser');
// }
// $resp['items'] = $this->items;
$resp['items'] = [];
}else{
$resp['#markup'] = t("no keys to search for");
}
return $resp;
}
}