field.install

<?php


/**
 * @file
 * Install, update and uninstall functions for the field module.
 */
use Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem;
use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;

/**
 * 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']);
                }
                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);
        }
    }
}

/**
 * Update the definition of deleted fields.
 */
function field_update_8500() {
    $state = \Drupal::state();
    // Convert the old deleted field definitions from an array to a FieldConfig
    // object.
    $deleted_field_definitions = $state->get('field.field.deleted', []);
    foreach ($deleted_field_definitions as $key => $deleted_field_definition) {
        if (is_array($deleted_field_definition)) {
            $deleted_field_definitions[$key] = new FieldConfig($deleted_field_definition);
        }
    }
    $state->set('field.field.deleted', $deleted_field_definitions);
    // Convert the old deleted field storage definitions from an array to a
    // FieldStorageConfig object.
    $deleted_field_storage_definitions = $state->get('field.storage.deleted', []);
    foreach ($deleted_field_storage_definitions as $key => $deleted_field_storage_definition) {
        if (is_array($deleted_field_storage_definition)) {
            $deleted_field_storage_definitions[$key] = new FieldStorageConfig($deleted_field_storage_definition);
        }
    }
    $state->set('field.storage.deleted', $deleted_field_storage_definitions);
}