Version 1
[yaffs-website] / web / core / modules / views / src / Plugin / views / style / EntityReference.php
diff --git a/web/core/modules/views/src/Plugin/views/style/EntityReference.php b/web/core/modules/views/src/Plugin/views/style/EntityReference.php
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@@ -0,0 +1,104 @@
+<?php
+
+namespace Drupal\views\Plugin\views\style;
+
+use Drupal\Component\Utility\Xss;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * EntityReference style plugin.
+ *
+ * @ingroup views_style_plugins
+ *
+ * @ViewsStyle(
+ *   id = "entity_reference",
+ *   title = @Translation("Entity Reference list"),
+ *   help = @Translation("Returns results as a PHP array of labels and rendered rows."),
+ *   theme = "views_view_unformatted",
+ *   register_theme = FALSE,
+ *   display_types = {"entity_reference"}
+ * )
+ */
+class EntityReference extends StylePluginBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $usesRowPlugin = TRUE;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $usesFields = TRUE;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $usesGrouping = FALSE;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function defineOptions() {
+    $options = parent::defineOptions();
+    $options['search_fields'] = ['default' => []];
+
+    return $options;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
+    parent::buildOptionsForm($form, $form_state);
+
+    $options = $this->displayHandler->getFieldLabels(TRUE);
+    $form['search_fields'] = [
+      '#type' => 'checkboxes',
+      '#title' => $this->t('Search fields'),
+      '#options' => $options,
+      '#required' => TRUE,
+      '#default_value' => $this->options['search_fields'],
+      '#description' => $this->t('Select the field(s) that will be searched when using the autocomplete widget.'),
+      '#weight' => -3,
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function render() {
+    if (!empty($this->view->live_preview)) {
+      return parent::render();
+    }
+
+    // Group the rows according to the grouping field, if specified.
+    $sets = $this->renderGrouping($this->view->result, $this->options['grouping']);
+
+    // Grab the alias of the 'id' field added by
+    // entity_reference_plugin_display.
+    $id_field_alias = $this->view->storage->get('base_field');
+
+    // @todo We don't display grouping info for now. Could be useful for select
+    // widget, though.
+    $results = [];
+    foreach ($sets as $records) {
+      foreach ($records as $values) {
+        $results[$values->{$id_field_alias}] = $this->view->rowPlugin->render($values);
+        // Sanitize HTML, remove line breaks and extra whitespace.
+        $results[$values->{$id_field_alias}]['#post_render'][] = function ($html, array $elements) {
+          return Xss::filterAdmin(preg_replace('/\s\s+/', ' ', str_replace("\n", '', $html)));
+        };
+      }
+    }
+    return $results;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function evenEmpty() {
+    return TRUE;
+  }
+
+}