Twig exception if Smart Trim is used on a field -> entity with no link [#2736839]

I use the Smart Trim formatter on a paragraphs field (https://drupal.org/project/paragraphs). The paragraph entity is used as field in a node content type.

The Smart Trim formatter tries to link to the paragraphs entity (where the field with the Smart Trim formatter is used). But in the paragraphs entity plugin definition there is no link information defined.

So I get the twig error:

Drupal\Core\Entity\Exception\UndefinedLinkTemplateException: No link template 'canonical' found for the 'paragraph' entity type in Drupal\Core\Entity\Entity->toUrl() (line 214 of core/lib/Drupal/Core/Entity/Entity.php).
Drupal\smart_trim\Plugin\Field\FieldFormatter\SmartTrimFormatter->viewElements(Object, 'de') (Line: 80)
Drupal\Core\Field\FormatterBase->view(Object, NULL) (Line: 259)
Drupal\Core\Entity\Entity\EntityViewDisplay->buildMultiple(Array) (Line: 303)
Drupal\Core\Entity\EntityViewBuilder->buildComponents(Array, Array, Array, 'preview') (Line: 246)
Drupal\Core\Entity\EntityViewBuilder->buildMultiple(Array) (Line: 203)
Drupal\Core\Entity\EntityViewBuilder->build(Array)
.....

Comment	File	Size	Author
#8	smart_trim_url_twig_exception-2736839-08.patch	771 bytes	casey
#2	smart_trim_url_twig_exception-2736839-01.patch	757 bytes	cbeier

Comments

Comment #1

30 May 2016 at 20:06

cbeier created an issue. See original summary.

Comment #2

cbeier commented 30 May 2016 at 20:41

Status	File	Size
new	smart_trim_url_twig_exception-2736839-01.patch	757 bytes

My current solution / A solution for me is to check if a valid link template is available for the current entity.

Comment #3

maartendeblock commented 28 June 2016 at 07:56

Status:

Active

» Reviewed & tested by the community

I've tested the patch on drupal 8.1.2 and it works.

Thank you.

Comment #4

29 June 2016 at 13:34

markie committed 642ad2e on 8.x-1.x authored by cbeier

Issue #2736839 by cbeier: Twig exception if Smart Trim is used on a...

Comment #5

markie commented 29 June 2016 at 13:35

Status:

Reviewed & tested by the community

» Patch (to be ported)

@cbeier thanks for the patch. I have applied it to the dev branch. I did correct a formatting error, NULL needs to be capitalized to conform with Drupal standards. Thanks again for your contribution.