diff core/modules/content_moderation/src/ContentModerationStateStorageSchema.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/content_moderation/src/ContentModerationStateStorageSchema.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,38 @@
+<?php
+
+namespace Drupal\content_moderation;
+
+use Drupal\Core\Entity\ContentEntityTypeInterface;
+use Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema;
+
+/**
+ * Defines the content moderation state schema handler.
+ */
+class ContentModerationStateStorageSchema extends SqlContentEntityStorageSchema {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getEntitySchema(ContentEntityTypeInterface $entity_type, $reset = FALSE) {
+    $schema = parent::getEntitySchema($entity_type, $reset);
+
+    // Creates unique keys to guarantee the integrity of the entity and to make
+    // the lookup in ModerationStateFieldItemList::getModerationState() fast.
+    $unique_keys = [
+      'content_entity_type_id',
+      'content_entity_id',
+      'content_entity_revision_id',
+      'workflow',
+      'langcode',
+    ];
+    $schema['content_moderation_state_field_data']['unique keys'] += [
+      'content_moderation_state__lookup' => $unique_keys,
+    ];
+    $schema['content_moderation_state_field_revision']['unique keys'] += [
+      'content_moderation_state__lookup' => $unique_keys,
+    ];
+
+    return $schema;
+  }
+
+}