Version 1
[yaffs-website] / web / core / modules / comment / src / Plugin / views / field / EntityLink.php
diff --git a/web/core/modules/comment/src/Plugin/views/field/EntityLink.php b/web/core/modules/comment/src/Plugin/views/field/EntityLink.php
new file mode 100644 (file)
index 0000000..03e6f6c
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@@ -0,0 +1,78 @@
+<?php
+
+namespace Drupal\comment\Plugin\views\field;
+
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\views\Plugin\views\field\FieldPluginBase;
+use Drupal\views\ResultRow;
+
+/**
+ * Handler for showing comment module's entity links.
+ *
+ * @ingroup views_field_handlers
+ *
+ * @ViewsField("comment_entity_link")
+ */
+class EntityLink extends FieldPluginBase {
+
+  /**
+   * Stores the result of node_view_multiple for all rows to reuse it later.
+   *
+   * @var array
+   */
+  protected $build;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function defineOptions() {
+    $options = parent::defineOptions();
+    $options['teaser'] = ['default' => FALSE];
+    return $options;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
+    $form['teaser'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t('Show teaser-style link'),
+      '#default_value' => $this->options['teaser'],
+      '#description' => $this->t('Show the comment link in the form used on standard entity teasers, rather than the full entity form.'),
+    ];
+
+    parent::buildOptionsForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function query() {}
+
+  /**
+   * {@inheritdoc}
+   */
+  public function preRender(&$values) {
+    // Render all nodes, so you can grep the comment links.
+    $entities = [];
+    foreach ($values as $row) {
+      $entity = $row->_entity;
+      $entities[$entity->id()] = $entity;
+    }
+    if ($entities) {
+      $this->build = entity_view_multiple($entities, $this->options['teaser'] ? 'teaser' : 'full');
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function render(ResultRow $values) {
+    $entity = $this->getEntity($values);
+
+    // Only render the links, if they are defined.
+    return !empty($this->build[$entity->id()]['links']['comment__comment']) ? drupal_render($this->build[$entity->id()]['links']['comment__comment']) : '';
+  }
+
+}