Initial Drupal 11 with DDEV setup

web/core/modules/field/field.module

@@ -0,0 +1,91 @@
+<?php
+
+/**
+ * @file
+ */
+
+use Drupal\field\FieldConfigInterface;
+use Drupal\field\FieldStorageConfigInterface;
+use Drupal\Core\Form\FormStateInterface;
+
+/*
+ * Load all public Field API functions. Drupal currently has no
+ * mechanism for auto-loading core APIs, so we have to load them on
+ * every page request.
+ */
+require_once __DIR__ . '/field.purge.inc';
+
+/**
+ * Assembles a partial entity structure with initial IDs.
+ *
+ * @param object $ids
+ *   An object with the properties entity_type (required), entity_id (required),
+ *   revision_id (optional) and bundle (optional).
+ *
+ * @return \Drupal\Core\Entity\EntityInterface
+ *   An entity, initialized with the provided IDs.
+ */
+function _field_create_entity_from_ids($ids) {
+  $id_properties = [];
+  $entity_type = \Drupal::entityTypeManager()->getDefinition($ids->entity_type);
+  if ($id_key = $entity_type->getKey('id')) {
+    $id_properties[$id_key] = $ids->entity_id;
+  }
+  if (isset($ids->revision_id) && $revision_key = $entity_type->getKey('revision')) {
+    $id_properties[$revision_key] = $ids->revision_id;
+  }
+  if (isset($ids->bundle) && $bundle_key = $entity_type->getKey('bundle')) {
+    $id_properties[$bundle_key] = $ids->bundle;
+  }
+  return \Drupal::entityTypeManager()
+    ->getStorage($ids->entity_type)
+    ->create($id_properties);
+}
+
+/**
+ * Entity form builder for field config edit form.
+ *
+ * @param string $entity_type_id
+ *   The entity type identifier.
+ * @param \Drupal\Core\Entity\EntityInterface $entity
+ *   The entity updated with the submitted values.
+ * @param array $form
+ *   The complete form array.
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
+ *   The current state of the form.
+ *
+ * @see \Drupal\field_ui\Form\FieldConfigEditForm::form
+ * @see \Drupal\field_ui\Form\FieldConfigEditForm::copyFormValuesToEntity
+ */
+function field_form_field_config_edit_form_entity_builder($entity_type_id, $entity, &$form, FormStateInterface $form_state): void {
+  assert($entity instanceof FieldConfigInterface);
+  $previous_field_storage = $form_state->getFormObject()->getEntity()->getFieldStorageDefinition();
+  assert($previous_field_storage instanceof FieldStorageConfigInterface);
+
+  // Act on all sub-types of the entity_reference field type.
+  /** @var \Drupal\Core\Field\FieldTypePluginManager $field_type_manager */
+  $field_type_manager = \Drupal::service('plugin.manager.field.field_type');
+  $item_class = 'Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem';
+  $class = $field_type_manager->getPluginClass($entity->getFieldStorageDefinition()->getType());
+  if ($class !== $item_class && !is_subclass_of($class, $item_class)) {
+    return;
+  }
+
+  // Update handler settings when target_type is changed.
+  if ($entity->getFieldStorageDefinition()->getSetting('target_type') !== $previous_field_storage->getSetting('target_type')) {
+    // @see field_field_storage_config_update().
+    $entity->setSetting('handler_settings', []);
+    // @see field_field_config_presave().
+    \Drupal::moduleHandler()->invoke('field', 'field_config_create', [$entity]);
+
+    // Store updated settings in form state so that the form state can be copied
+    // directly to the entity.
+    $form_state->setValue('settings', $entity->getSettings());
+
+    // Unset user input for the settings because they are not valid after the
+    // target type has changed.
+    $user_input = $form_state->getUserInput();
+    unset($user_input['settings']);
+    $form_state->setUserInput($user_input);
+  }
+}