I'm seeing this error when I'm opening a view custom elements page that is formatted to show fields and one of the fields is entity revision reference with multi-value cardinality.
Auf der Website ist ein unerwarteter Fehler aufgetreten. Versuchen Sie es später noch einmal.<br><br><em class="placeholder">TypeError</em>: htmlspecialchars(): Argument #1 ($string) must be of type string, array given in <em class="placeholder">htmlspecialchars()</em> (line <em class="placeholder">437</em> of <em class="placeholder">core/lib/Drupal/Component/Utility/Html.php</em>). <pre class="backtrace">Drupal\Component\Utility\Html::escape(Array) (Line: 220)
Drupal\views\Plugin\views\HandlerBase->sanitizeValue(Array) (Line: 1167)
Drupal\views\Plugin\views\field\FieldPluginBase->render(Object) (Line: 83)
Drupal\lupus_decoupled_views\Plugin\views\style\CustomElements->render() (Line: 2174)
Drupal\views\Plugin\views\display\DisplayPluginBase->render() (Line: 1548)
Drupal\views\ViewExecutable->render() (Line: 199)
Drupal\views\Plugin\views\display\Page->execute() (Line: 1645)
Drupal\views\ViewExecutable->executeDisplay('custom_elements_page_2', Array) (Line: 86)
Drupal\lupus_decoupled_views\Controller\ViewsController->viewsView('tiere', 'custom_elements_page_2', Object) (Line: 181)
The issue is in:
lupus_decoupled/modules/lupus_decoupled_views/src/Plugin/views/style/CustomElements.php:74
$custom_element->setAttribute($name, $value->render($row));
I did have partial success with:
$values = $value->getValue($row);
if (count($values) > 1) {
$rendered = $this->getRenderer()->renderPlain($items);
$custom_element->setAttribute($name, $rendered);
}
But I'm still seeing some error messages.
Closed: duplicate
1.0
Code
Involves, uses, or integrates with views. In Drupal 8 core, use the “VDC” tag instead.
as I understand this happens when using views field formatters, that's not supported. thus setting as duplicate from https://www.drupal.org/project/lupus_decoupled/issues/3461874 🐛 Custom elements Views: Per-field formatters are not supported/working Active
If I understood that wrong, please re-open.