An anonymous user must be identifed by session ID: FLAG compatibility issue

[adarshkhatri]

There is code changes on Flag modules and it's throwing error for anonymous users.

The website encountered an unexpected error. Please try again later.
LogicException: An anonymous user must be identifed by session ID. in Drupal\flag\FlagService->getAllEntityFlaggings() (line 194 of modules/flag/src/FlagService.php).

Drupal\flag\FlagService->getAllEntityFlaggings(Object, Object) (Line: 24)
message_subscribe_email_flag_action_access('flag', Object, Object, Object)
call_user_func_array('message_subscribe_email_flag_action_access', Array) (Line: 402)
Drupal\Core\Extension\ModuleHandler->invokeAll('flag_action_access', Array) (Line: 175)
Drupal\flag\FlagType\FlagTypeBase->actionAccess('flag', Object, Object, Object) (Line: 314)
Drupal\flag\Plugin\Flag\EntityFlagType->actionAccess('flag', Object, Object, Object) (Line: 145)
Drupal\flag\Plugin\Flag\UserFlagType->actionAccess('flag', Object, Object, Object) (Line: 355)
Drupal\flag\Entity\Flag->actionAccess('flag', Object, Object) (Line: 98)
Drupal\flag\ActionLink\ActionLinkTypeBase->getAsFlagLink(Object, Object) (Line: 23)
Drupal\flag\Plugin\ActionLink\AJAXactionLink->getAsFlagLink(Object, Object) (Line: 48)
Drupal\flag\FlagLinkBuilder->build('user', '1', 'email_user')
call_user_func_array(Array, Array) (Line: 356)
Drupal\Core\Render\Renderer->doRender(Array, 1) (Line: 195)
Drupal\Core\Render\Renderer->render(Array, 1) (Line: 151)
Drupal\Core\Render\Renderer->Drupal\Core\Render{closure}() (Line: 574)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 152)
Drupal\Core\Render\Renderer->renderPlain(Array) (Line: 166)
Drupal\Core\Render\Renderer->renderPlaceholder('callback=flag.link_builder%3Abuild&args[0]=user&args[1]=1&args[2]=email_user&token=GCdGR5FCVqLIzAYH2-ME7D7hVeeb5zSHsC4ULIdn5iY', Array) (Line: 698)
Drupal\big_pipe\Render\BigPipe->renderPlaceholder('callback=flag.link_builder%3Abuild&args[0]=user&args[1]=1&args[2]=email_user&token=GCdGR5FCVqLIzAYH2-ME7D7hVeeb5zSHsC4ULIdn5iY', Array) (Line: 552)
Drupal\big_pipe\Render\BigPipe->sendPlaceholders(Array, Array, Object) (Line: 305)
Drupal\big_pipe\Render\BigPipe->sendContent(Object) (Line: 112)
Drupal\big_pipe\Render\BigPipeResponse->sendContent() (Line: 374)
Symfony\Component\HttpFoundation\Response->send() (Line: 20)

You may check this discussion on Drupal Flag.

[jaarong]

I'm running into this as well. After enabling the email users flag, I can no longer create a new account with an anonymous user.

[dpi]

Im getting this when attempting to run the cores' search indexing cron job.

Core now refuses to index anything since this exception is thrown on each run.

flag-8.x-4.0-alpha2
message_subscribe-8.x-1.0-beta4

[dpi]

[oriole9g]

I confirm that this commit fixes the problem, flag module has changed her API.

It would be great if we update the code in Drupal module: https://www.drupal.org/project/message_subscribe, no only the GitHub version :)