18

I want to be able to get the nid but the only information I have is http://example.com/this-is-the-alias.

Is there a way to get either the internal path of /node/* for that alias if I am not on the page? Or is there a way to just get the nid from that alias right away?

25

I'm not sure if there's a direct function, but one route is to use the path alias manager service to lookup the internal path then regex it for a valid node id to perform an object load on:

$path = \Drupal::service('path.alias_manager')->getPathByAlias('/this-is-the-alias');
if(preg_match('/node\/(\d+)/', $path, $matches)) {
  $node = \Drupal\node\Entity\Node::load($matches[1]);
}
  • 4
    For some reason, $path is sometimes equal to /this-is-the-alias. Once was when the root path (node/{id}) was another alias #migrationstruggles, but it was also present with other aliases. – Chris Happy Feb 23 '18 at 2:28
7

You can use the following code to get and load an entity and have access to its values.

  use \Drupal\Core\Url;

  $alias = \Drupal::service('path.alias_manager')->getPathByAlias('/etapes-de-la-vie');

  $params = Url::fromUri("internal:" . $alias)->getRouteParameters();
  $entity_type = key($params);
  $node = \Drupal::entityTypeManager()->getStorage($entity_type)->load($params[$entity_type]);
  //to use dpm you need the devel module
  dpm($node->nid->value);

References

1

Install the devel module and then use the devel toolbar item Current route info.

This results in this url, which you can type in directly and provide any path known to your drupal installation as query parameter:

/devel/routes/item?path=alias

When it is a node you find the node id in the raw parameters at the end of the listed route variables.

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