Guidance on including co-authors in Twig

If you have access to the entity (the node variable in node templates), you can get the co-authors with node.co_authors.referencedEntities. For example, you can get the display name of the first co-author with node.co_authors.referencedEntities|first.displayName or node.co_authors.entity.displayName.

You can also show the co-authors in the view display and access the rendered output with content.co_authors in the node template.

Hi Dieter,

Thanks for your responsiveness. Much appreciated!

Is there a mechanism to get all co-authors in the Twig file? The idea here is to create an authors' biography that goes after the content in the blog content type. The biography will include the co-authors' picture and a biography.

Following your inputs, I tried the following:

node.co_authors.referencedEntities and node.co_authors.referencedEntities|first.displayName

This resulted in the following error:

Twig\Sandbox\SecurityError: Calling "referencedEntities" method on a "Drupal\Core\Field\EntityReferenceFieldItemList" object is not allowed. in Drupal\Core\Template\TwigSandboxPolicy->checkMethodAllowed() (line 174 of themes/custom/rhythm/templates/node/node--nd-blog.html.twig).

This worked:

node.co_authors.entity.displayName

I'm new to Drupal, coming from the WordPress ecosystem.

Is there an alternative approach you'd recommend?

Thanks again!

Mithun A. Sridharan

You can fix the SecurityError by adding the following to your settings.php:

$settings['twig_sandbox_allowed_methods'] = [
    'id',
    'label',
    'bundle',
    'get',
    '__toString',
    'toString',
    'referencedEntities',
];

@dieterholvoet,

It's been a while since I approached you with the issues.

The suggested fixes resolve the issues I was facing.

Thank you very much for your support.

Much appreciated!

Mithun A. Sridharan