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@@ -0,0 +1,78 @@
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+<?php
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+
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+namespace Drupal\materio_sapi\Plugin\search_api\processor;
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+
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+use Drupal\Core\Entity\EntityPublishedInterface;
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+use Drupal\search_api\IndexInterface;
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+use Drupal\search_api\Processor\ProcessorPluginBase;
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+use Drupal\user\UserInterface;
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+
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+/**
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+ * Excludes unused terms from indexes.
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+ *
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+ * @SearchApiProcessor(
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+ * id = "term_used",
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+ * label = @Translation("Term used"),
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+ * description = @Translation("Exclude unused taxonomy terms from being indexed."),
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+ * stages = {
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+ * "alter_items" = 0,
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+ * },
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+ * )
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+ */
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+class TermUsed extends ProcessorPluginBase {
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+
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+ /**
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+ * {@inheritdoc}
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+ */
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+ public static function supportsIndex(IndexInterface $index) {
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+ $interface = EntityPublishedInterface::class;
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+ foreach ($index->getDatasources() as $datasource) {
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+ $entity_type_id = $datasource->getEntityTypeId();
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+ if (!$entity_type_id) {
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+ continue;
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+ }
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+ // We support users and any entities that implement
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+ // \Drupal\Core\Entity\EntityPublishedInterface.
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+ if ($entity_type_id === 'taxonomy_term') {
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+ return TRUE;
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+ }
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+ // $entity_type = \Drupal::entityTypeManager()
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+ // ->getDefinition($entity_type_id);
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+ // if ($entity_type && $entity_type->entityClassImplements($interface)) {
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+ // return TRUE;
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+ // }
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+ }
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+ return FALSE;
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+ }
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+
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+ /**
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+ * {@inheritdoc}
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+ */
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+ public function alterIndexedItems(array &$items) {
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+ // Annoyingly, this doc comment is needed for PHPStorm. See
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+ // http://youtrack.jetbrains.com/issue/WI-23586
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+ /** @var \Drupal\search_api\Item\ItemInterface $item */
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+ foreach ($items as $item_id => $item) {
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+ $term = $item->getOriginalObject()->getValue();
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+ $enabled = TRUE;
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+ // $entity_storage = \Drupal::entityTypeManager()->getStorage('node');
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+ // $count_query = $entity_storage->getQuery()
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+ // ->condition('type', 'materiau')
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+ // ->accessCheck(TRUE)
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+ // ->condition('status', '1')
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+ // ->count();
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+ //
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+ // $this->count = $this->count_query->execute();
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+ $query = \Drupal::database()->select('taxonomy_index', 'ti');
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+ $query->fields('ti', array('nid'));
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+ $query->condition('ti.tid', $term->id());
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+ $query->distinct(TRUE);
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+ $result = $query->execute();
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+ $nodeIds = $result->fetchCol();
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+ if (!$nodeIds) {
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+ unset($items[$item_id]);
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+ }
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+ }
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+ }
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+
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+}
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