--- /dev/null
+<?php
+
+/**
+ * @file
+ * Install, update and uninstall functions for the field module.
+ */
+
+use Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem;
+
+/**
+ * Removes the stale 'target_bundle' storage setting on entity_reference fields.
+ */
+function field_update_8001() {
+ $config = \Drupal::configFactory();
+ /** @var \Drupal\Core\Field\FieldTypePluginManager $field_type_manager */
+ $field_type_manager = \Drupal::service('plugin.manager.field.field_type');
+
+ // Iterate on all fields storage.
+ foreach ($config->listAll('field.storage.') as $field_id) {
+ $field_storage = $config->getEditable($field_id);
+ $class = $field_type_manager->getPluginClass($field_storage->get('type'));
+
+ // Deal only with entity reference fields and descendants.
+ if ($class == EntityReferenceItem::class || is_subclass_of($class, EntityReferenceItem::class)) {
+ // Remove 'target_bundle' from settings.
+ $field_storage->clear('settings.target_bundle')->save(TRUE);
+ }
+ }
+}
+
+/**
+ * The 'entity_reference' field type is now provided by core.
+ */
+function field_update_8002() {
+ $config_factory = \Drupal::configFactory();
+
+ // Iterate on all configuration entities.
+ foreach ($config_factory->listAll() as $id) {
+ $changed = FALSE;
+ $config = $config_factory->getEditable($id);
+
+ // Update field storage configurations.
+ if (strpos($id, 'field.storage.') === 0) {
+ // Deal only with entity reference fields.
+ if ($config->get('type') == 'entity_reference') {
+ // Fix the type provider.
+ $config->set('module', 'core');
+ $changed = TRUE;
+ }
+ }
+
+ // Remove entity_reference module dependency from any configuration entity.
+ if ($dependencies = $config->get('dependencies.module')) {
+ if (($delta = array_search('entity_reference', $dependencies)) !== FALSE) {
+ unset($dependencies[$delta]);
+ if ($dependencies) {
+ $config->set('dependencies.module', array_values($dependencies));
+ }
+ else {
+ $config->clear('dependencies.module');
+ }
+ $changed = TRUE;
+ }
+ }
+
+ if ($changed) {
+ $config->save(TRUE);
+ }
+ }
+}
+
+/**
+ * Populate the new 'auto_create_bundle' setting for entity reference fields.
+ */
+function field_update_8003() {
+ $config = \Drupal::configFactory();
+ /** @var \Drupal\Core\Field\FieldTypePluginManager $field_type_manager */
+ $field_type_manager = \Drupal::service('plugin.manager.field.field_type');
+
+ // Iterate over all fields.
+ foreach ($config->listAll('field.field.') as $field_id) {
+ $field = $config->getEditable($field_id);
+ $class = $field_type_manager->getPluginClass($field->get('field_type'));
+
+ // Deal only with entity reference fields and descendants.
+ if ($class == EntityReferenceItem::class || is_subclass_of($class, EntityReferenceItem::class)) {
+ $handler_settings = $field->get('settings.handler_settings');
+
+ if (is_array($handler_settings) && !empty($handler_settings['auto_create'])) {
+ // If the field can reference multiple bundles, pick the first one
+ // available in order to replicate the previous behavior.
+ if (is_array($handler_settings['target_bundles']) && count($handler_settings['target_bundles']) > 1) {
+ $handler_settings['auto_create_bundle'] = reset($handler_settings['target_bundles']);
+ }
+ // Otherwise, we don't know which bundle to use for auto-creation so we
+ // have to disable the functionality completely.
+ elseif (!$handler_settings['target_bundles']) {
+ $handler_settings['auto_create'] = FALSE;
+ $handler_settings['auto_create_bundle'] = NULL;
+ }
+ }
+
+ $field->set('settings.handler_settings', $handler_settings)->save(TRUE);
+ }
+ }
+}