Updated to Drupal 8.5. Core Media not yet in use.

[yaffs-website] / web / core / lib / Drupal / Core / Entity / EntityChangesDetectionTrait.php

diff --git a/web/core/lib/Drupal/Core/Entity/EntityChangesDetectionTrait.php b/web/core/lib/Drupal/Core/Entity/EntityChangesDetectionTrait.php
new file mode 100644 (file)
index 0000000..e598e8c
--- /dev/null
+++ b/web/core/lib/Drupal/Core/Entity/EntityChangesDetectionTrait.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Drupal\Core\Entity;
+
+/**
+ * Provides helper methods to detect changes in an entity object.
+ *
+ * @internal This may be replaced by a proper entity comparison handler.
+ */
+trait EntityChangesDetectionTrait {
+
+  /**
+   * Returns an array of field names to skip when checking for changes.
+   *
+   * @param \Drupal\Core\Entity\ContentEntityInterface $entity
+   *   A content entity object.
+   *
+   * @return string[]
+   *   An array of field names.
+   */
+  protected function getFieldsToSkipFromTranslationChangesCheck(ContentEntityInterface $entity) {
+    /** @var \Drupal\Core\Entity\ContentEntityTypeInterface $entity_type */
+    $entity_type = $entity->getEntityType();
+
+    // A list of known revision metadata fields which should be skipped from
+    // the comparision.
+    $fields = [
+      $entity_type->getKey('revision'),
+      $entity_type->getKey('revision_translation_affected'),
+    ];
+    $fields = array_merge($fields, array_values($entity_type->getRevisionMetadataKeys()));
+
+    return $fields;
+  }
+
+}