Version 1

[yaffs-website] / web / core / modules / serialization / src / Normalizer / FieldItemNormalizer.php

diff --git a/web/core/modules/serialization/src/Normalizer/FieldItemNormalizer.php b/web/core/modules/serialization/src/Normalizer/FieldItemNormalizer.php
new file mode 100644 (file)
index 0000000..decca43
--- /dev/null
+++ b/web/core/modules/serialization/src/Normalizer/FieldItemNormalizer.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Drupal\serialization\Normalizer;
+
+use Drupal\Core\Field\FieldItemInterface;
+use Symfony\Component\Serializer\Exception\InvalidArgumentException;
+use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
+
+/**
+ * Denormalizes field item object structure by updating the entity field values.
+ */
+class FieldItemNormalizer extends ComplexDataNormalizer implements DenormalizerInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $supportedInterfaceOrClass = FieldItemInterface::class;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function denormalize($data, $class, $format = NULL, array $context = []) {
+    if (!isset($context['target_instance'])) {
+      throw new InvalidArgumentException('$context[\'target_instance\'] must be set to denormalize with the FieldItemNormalizer');
+    }
+
+    if ($context['target_instance']->getParent() == NULL) {
+      throw new InvalidArgumentException('The field item passed in via $context[\'target_instance\'] must have a parent set.');
+    }
+
+    /** @var \Drupal\Core\Field\FieldItemInterface $field_item */
+    $field_item = $context['target_instance'];
+
+    $field_item->setValue($this->constructValue($data, $context));
+    return $field_item;
+  }
+
+  /**
+   * Build the field item value using the incoming data.
+   *
+   * Most normalizers that extend this class can simply use this method to
+   * construct the denormalized value without having to override denormalize()
+   * and reimplementing its validation logic or its call to set the field value.
+   *
+   * @param mixed $data
+   *   The incoming data for this field item.
+   * @param array $context
+   *   The context passed into the Normalizer.
+   *
+   * @return mixed
+   *   The value to use in Entity::setValue().
+   */
+  protected function constructValue($data, $context) {
+    return $data;
+  }
+
+}