I have created a module with its routing.yml file.

  path: '/dossiers/{node}/dossier'
    _entity_view: 'node.dossier_dossier'
    _permission: 'access content'

I have created a custom view mode (node.dossier_dossier) and the corresponding Twig template. If I go to dossiers/1/dossier, it works, and it displays the node with the dossier_dossier view mode and appropriate template.

node/1 has /dossiers/my-custom-path as its path alias, which is automatically set from the Pathauto module. If I try to access /dossiers/my-custom-path/dossier, it returns a Page not found error.

How can I make this route work for my nodes for both (default and path aliases) URLs?

Edit: I should maybe mention why I need that:

  • /dossiers/my-custom-path should display the node using the default view mode
  • /dossiers/my-custom-path/dossier should display the node using the dossier_dossier view mode
  • /dossiers/my-custom-path/abstract should display the node using yet another view mode (I'd create another route for that one presumably)
  • Since the path alias already contains the /dossiers part of the path, I also tried with path: '/{node}/dossier' but that didn't work either.
    – MrUpsidown
    Commented Jul 27, 2016 at 10:02
  • The aliases is only valid for the full url, not parts of it. If you want /dossiers/my-custom-path/dossierto work, you have to use the complete url as alias.
    – 4uk4
    Commented Jul 27, 2016 at 10:15
  • @4k4 could you please elaborate a bit more? I don't much understand your comment. Also please see my edit in the question where I explain the goals.
    – MrUpsidown
    Commented Jul 27, 2016 at 11:01
  • 1
    {node} refers to the node's ID, which is then upcast to a node object for the controller. It doesn't refer to any URL alias you may have for the node. To get what you're looking for, you'd need a custom upcaster that searched for and found the node based on its alias
    – Clive
    Commented Jul 27, 2016 at 11:37

2 Answers 2


The subpathauto module (depends on pathauto) might help you here: https://www.drupal.org/project/subpathauto

I have a pathauto alias on my site for /node/{id} (let's call it /node-slug). By installing and enabling the subpathauto module, I was able to create a custom route /node/{id}/locations which is now accessible via /node-slug/locations


Pathauto can't do this, it can only generate aliases to the default view mode.

You can write your own Pathauto module, which generates for each view mode a separate aliases. For a single purpose module there is not much work to do, you only need to generate the aliases and use

\Drupal::service('path.alias_storage')->save($source, $alias);

to save them.

The problem is, you get a very large url_alias table.

Or use route_callbacks: in *.routing.yml, then define in this callback for each view mode a different route, which calls a Controller, which then in case you have a hit on the route will look up the middle part of the alias and return a redirect to the node in the requested view mode. This is without the static alias table, but may take longer for each request.

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