Allow conditional logic in automatic entity labels

I extended the module by twig templates. There's a switch in the configuration, where you can select between tokens or twig templates. I haven't created a patch (yet), for now it is available on Github.

Examples, how you can use it:

• {{ entity.field_name[0].value }}
• {% for v in entity.field_name %}{{ v.value|upper }} {% endfor %}

I had the same need and solved it by using custom tokens. Then you can apply conditions inside your hook_tokens().

/**
 * Implements hook_token_info().
 */
function mymodule_token_info() : array {
  $info = [];

  $info['types']['my_custom_tokens'] = [
    'name' => t('Custom Tokens'),
    'description' => t('Tokens available for specific use on this website'),
  ];

  $info['tokens']['my_custom_tokens']['custom_token'] = [
    'name' => 'Custom token',
    'description' => t('Custom token with conditions'),
  ];

  return $info;
}

/**
 * Implements hook_tokens().
 */
function mymodule_tokens($type, $tokens, array $data, array $options, BubbleableMetadata $bubbleable_metadata) : array {
  $replacements = [];

  if ($type == 'my_custom_tokens') {
    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'custom_token':
            $node = $data['node'];
            // Add your logic here.

            $replacements[$original] = $title;
          }

          break;

        default:
          break;
      }
    }
  }

  return $replacements;
}

Then just use your custom token in the auto_entitylabel configuration