diff core/modules/taxonomy/src/Plugin/EntityReferenceSelection/TermSelection.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/taxonomy/src/Plugin/EntityReferenceSelection/TermSelection.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,77 @@
+<?php
+
+namespace Drupal\taxonomy\Plugin\EntityReferenceSelection;
+
+use Drupal\Component\Utility\Html;
+use Drupal\Core\Entity\Plugin\EntityReferenceSelection\DefaultSelection;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\taxonomy\Entity\Vocabulary;
+
+/**
+ * Provides specific access control for the taxonomy_term entity type.
+ *
+ * @EntityReferenceSelection(
+ *   id = "default:taxonomy_term",
+ *   label = @Translation("Taxonomy Term selection"),
+ *   entity_types = {"taxonomy_term"},
+ *   group = "default",
+ *   weight = 1
+ * )
+ */
+class TermSelection extends DefaultSelection {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultConfiguration() {
+    return [
+      'sort' => [
+        'field' => 'name',
+        'direction' => 'asc',
+      ]
+    ] + parent::defaultConfiguration();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+    $form = parent::buildConfigurationForm($form, $form_state);
+
+    $form['target_bundles']['#title'] = $this->t('Available Vocabularies');
+
+    // Sorting is not possible for taxonomy terms because we use
+    // \Drupal\taxonomy\TermStorageInterface::loadTree() to retrieve matches.
+    $form['sort']['#access'] = FALSE;
+
+    return $form;
+
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getReferenceableEntities($match = NULL, $match_operator = 'CONTAINS', $limit = 0) {
+    if ($match || $limit) {
+      return parent::getReferenceableEntities($match, $match_operator, $limit);
+    }
+
+    $options = [];
+
+    $bundles = $this->entityManager->getBundleInfo('taxonomy_term');
+    $bundle_names = $this->getConfiguration()['target_bundles'] ?: array_keys($bundles);
+
+    foreach ($bundle_names as $bundle) {
+      if ($vocabulary = Vocabulary::load($bundle)) {
+        if ($terms = $this->entityManager->getStorage('taxonomy_term')->loadTree($vocabulary->id(), 0, NULL, TRUE)) {
+          foreach ($terms as $term) {
+            $options[$vocabulary->id()][$term->id()] = str_repeat('-', $term->depth) . Html::escape($this->entityManager->getTranslationFromContext($term)->label());
+          }
+        }
+      }
+    }
+
+    return $options;
+  }
+
+}