Issue #3298312 by nikita_tt, eiriksm: The database connection is not serializable

services:

  logger.channel.commerce_product_reservation:

    parent: logger.channel_base

    arguments: [ 'commerce_product_reservation' ]

  commerce_product_reservation.cart_provider:

    class: Drupal\commerce_product_reservation\CartProvider

    decorates: commerce_cart.cart_provider

    class: Drupal\commerce_product_reservation\CartFormHandler

    arguments:

      - "@entity_type.manager"

      - "@logger.factory"

      - "@logger.channel.commerce_product_reservation"

      - "@messenger"

      - "@commerce_product_reservation.selected_store"

      - "@plugin.manager.reservation_store"

use Drupal\commerce_product_reservation\Form\SelectStoreForm;

use Drupal\Core\Ajax\AjaxResponse;

use Drupal\Core\Ajax\OpenModalDialogCommand;

use Drupal\Core\DependencyInjection\DependencySerializationTrait;

use Drupal\Core\Entity\EntityTypeManagerInterface;

use Drupal\Core\Extension\ModuleHandlerInterface;

use Drupal\Core\Form\FormBuilderInterface;

use Drupal\Core\Form\FormStateInterface;

use Drupal\Core\Logger\LoggerChannelFactoryInterface;

use Drupal\Core\Messenger\MessengerInterface;

use Drupal\Core\StringTranslation\StringTranslationTrait;

use Drupal\Core\Url;

use Psr\Log\LoggerInterface;

use Symfony\Component\HttpFoundation\RequestStack;

/**

class CartFormHandler {

  use StringTranslationTrait;

  use DependencySerializationTrait;

  /**

   * Entity type manager.

  protected $entityTypeManager;

  /**

   * Logger.

   * The logger.

   *

   * @var \Psr\Log\LoggerInterface

   */

  /**

   * CartFormHandler constructor.

   */

  public function __construct(EntityTypeManagerInterface $entity_type_manager, LoggerChannelFactoryInterface $logger_factory, MessengerInterface $messenger, SelectedStoreManager $selected_store, ReservationStorePluginManager $reservation_manager, RequestStack $request_stack, FormBuilderInterface $form_builder, ModuleHandlerInterface $module_handler, CartAdder $cartAdder) {

  public function __construct(EntityTypeManagerInterface $entity_type_manager, LoggerInterface $logger_channel, MessengerInterface $messenger, SelectedStoreManager $selected_store, ReservationStorePluginManager $reservation_manager, RequestStack $request_stack, FormBuilderInterface $form_builder, ModuleHandlerInterface $module_handler, CartAdder $cartAdder) {

    $this->entityTypeManager = $entity_type_manager;

    $this->logger = $logger_factory->get('commerce_product_reservation');

    $this->logger = $logger_channel;

    $this->messenger = $messenger;

    $this->selectedStoreManager = $selected_store;

    $this->reservationManager = $reservation_manager;