Issue #3265901 by artem_sylchuk: Database update error regarding already existing configurations

 * Enable notifications submodule.

 */

function private_message_update_8007() {

  // Delete the configs that will be migrated to private_message_notify.

  // Only delete configurations if private_message_notify is not installed

  // already.

  if (!\Drupal::moduleHandler()->moduleExists('private_message_notify')) {

    // We should delete configurations that will be migrated to

    // private_message_notify to prevent database update errors.

    $configs = [

      'core.entity_form_display.message.private_message_notification.default',

      'core.entity_view_display.message.private_message_notification.default',

      'core.entity_view_display.message.private_message_notification.mail_body',

      'core.entity_view_display.message.private_message_notification.mail_subject',

      'field.field.message.private_message_notification.field_message_pm_thread',

      'field.field.message.private_message_notification.field_message_private_message',

      'field.storage.message.field_message_pm_thread',

      'field.storage.message.field_message_private_message',

      'message.template.private_message_notification',

    ];

    $config_factory = \Drupal::configFactory();

    // Some users could edit the configuration, so we need to save it temporarily

    // and update after private_message_notify will be enabled

    // @see private_message_update_8010

    foreach ($configs as $name) {

      $config = $config_factory->getEditable($name);

      if ($config->isNew()) {

        continue;

      }

      // Set config data to a new temporary config.

      $config_tmp = $config_factory->getEditable("{$name}.tmp");

      $config_tmp->setData($config->getRawData())->save();

      // Delete config.

      $config->delete();

    }

  }

  // Enable notifications submodule.

  $module = 'private_message_notify';

  if (!\Drupal::moduleHandler()->moduleExists($module)) {

    /** @var \Drupal\Core\Extension\ModuleInstallerInterface $installer */

    $installer = \Drupal::service('module_installer');

    $installer->install(['private_message_notify']);

    $installer->install([$module]);

  }

  // Update the configs that were migrated to private_message_notify.

  try {

    $config_factory = \Drupal::configFactory();

    foreach ($configs as $name) {

      // Load temporary config.

      $config_tmp = $config_factory->getEditable("{$name}.tmp");

      // If there is not exist a temporary config, do nothing.

      if ($config_tmp->isNew()) {

        continue;

      }

      // Load temporary config and update original one.

      $config = $config_factory->getEditable($name);

      $config->setData($config_tmp->getRawData())->save();

      // Delete temporary config.

      $config_tmp->delete();

    }

  }

  catch (Exception $e) {

    \Drupal::logger('private_message')->error($e->getMessage());

  }

}

/**

 * Skip update because of unnecessary.

 */

function private_message_update_8008() {

  // Leave this hook update empty because it already passed who applied patch

  // from issue https://www.drupal.org/project/private_message/issues/3265901

}

/**

 * Skip update because of unnecessary.

 */

function private_message_update_8009() {

  // Leave this hook update empty because it already passed who applied patch

  // from issue https://www.drupal.org/project/private_message/issues/3265901

}

/**

 * Skip update because of unnecessary.

 */

function private_message_update_8010() {

  // Leave this hook update empty because it already passed who applied patch

  // from issue https://www.drupal.org/project/private_message/issues/3265901

}