AI Assistant module error due to missing restore link template in Trash module

denes.szabo → made their first commit to this issue’s fork.

The problem is: the trash module provides operation links for entities to restore or purge the entity from trash.

But, before you need to configure the module to allow the trash functionality to the entity type. If the trash already enabled to the entity type, then the purge and restore link templates will be added to the entity.

So, the fix is simple: if an entity has no link template for these actions, then do not provide them.

I have similar problem: on a fresh Drupal CMS install I am not able to access the dashboard or people list page, I got this error.

The website encountered an unexpected error. Try again later.

Drupal\Core\Entity\Exception\UndefinedLinkTemplateException: No link template 'restore' found for the 'dashboard' entity type in Drupal\Core\Entity\EntityBase->toUrl() (line 211 of core/lib/Drupal/Core/Entity/EntityBase.php).
Drupal\Core\Config\Entity\ConfigEntityBase->toUrl() (Line: 160)
Drupal\dashboard\Entity\Dashboard->toUrl() (Line: 393)
trash_entity_operation()
call_user_func_array() (Line: 355)
Drupal\Core\Extension\ModuleHandler->Drupal\Core\Extension\{closure}() (Line: 307)
Drupal\Core\Extension\ModuleHandler->invokeAllWith() (Line: 354)
Drupal\Core\Extension\ModuleHandler->invokeAll() (Line: 133)
Drupal\Core\Entity\EntityListBuilder->getOperations() (Line: 242)
Drupal\Core\Entity\EntityListBuilder->buildOperations() (Line: 224)
Drupal\Core\Entity\EntityListBuilder->buildRow() (Line: 108)
Drupal\Core\Config\Entity\DraggableListBuilder->buildRow() (Line: 40)
Drupal\dashboard\DashboardListBuilder->buildRow() (Line: 163)
Drupal\Core\Config\Entity\DraggableListBuilder->buildForm()
call_user_func_array() (Line: 528)
Drupal\Core\Form\FormBuilder->retrieveForm() (Line: 279)
Drupal\Core\Form\FormBuilder->buildForm() (Line: 97)
Drupal\autosave_form\Form\AutosaveFormBuilder->buildForm() (Line: 219)
Drupal\Core\Form\FormBuilder->getForm() (Line: 121)
Drupal\Core\Config\Entity\DraggableListBuilder->render() (Line: 23)
Drupal\Core\Entity\Controller\EntityListController->listing()
call_user_func_array() (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 593)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 121)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext() (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 183)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 116)
Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 90)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 709)
Drupal\Core\DrupalKernel->handle() (Line: 19)

I have the fix, I am trying to create a merge request…

So, the fix is simple: if an entity has no link template for these actions, then do not provide them.

I'm afraid it's not that simple :) Trash support could be enabled only for certain bundles of an entity type, which would make the link templates available for it. What I missed in 🐛 Users without permission still see action links Active is that we need to forbid the restore and purge operations for entity types that are not trash-enabled.

Last title change :)

Merged into 3.x, thanks @denes.szabo for starting the work on this!

Automatically closed - issue fixed for 2 weeks with no activity.