function field_entity_bundle_delete

Implements hook_entity_bundle_delete().

Related topics

File

core/modules/field/field.module, line 218

Code

function field_entity_bundle_delete($entity_type_id, $bundle) {
    $storage = \Drupal::entityTypeManager()->getStorage('field_config');
    // Get the fields on the bundle.
    $fields = $storage->loadByProperties([
        'entity_type' => $entity_type_id,
        'bundle' => $bundle,
    ]);
    // This deletes the data for the field as well as the field themselves. This
    // function actually just marks the data and fields as deleted, leaving the
    // garbage collection for a separate process, because it is not always
    // possible to delete this much data in a single page request (particularly
    // since for some field types, the deletion is more than just a simple DELETE
    // query).
    foreach ($fields as $field) {
        $field->delete();
    }
    // We are duplicating the work done by
    // \Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem::onDependencyRemoval()
    // because we need to take into account bundles that are not provided by a
    // config entity type so they are not part of the config dependencies.
    // Gather a list of all entity reference fields.
    $map = \Drupal::service('entity_field.manager')->getFieldMapByFieldType('entity_reference');
    $ids = [];
    foreach ($map as $type => $info) {
        foreach ($info as $name => $data) {
            foreach ($data['bundles'] as $bundle_name) {
                $ids[] = "{$type}.{$bundle_name}.{$name}";
            }
        }
    }
    // Update the 'target_bundles' handler setting if needed.
    foreach (FieldConfig::loadMultiple($ids) as $field_config) {
        if ($field_config->getSetting('target_type') == $entity_type_id) {
            $handler_settings = $field_config->getSetting('handler_settings');
            if (isset($handler_settings['target_bundles'][$bundle])) {
                unset($handler_settings['target_bundles'][$bundle]);
                $field_config->setSetting('handler_settings', $handler_settings);
                $field_config->save();
            }
        }
    }
}