I have used Webform many times before but this is the first time I am testing Webform Node :

Provides a Webform content type which allows webforms to be integrated into a website as nodes.

Usually, I integrate webforms with blocks.

Everything works fine but I notice that the webform $form_id contains the node id (here nid = 174):


This poses a problem for me because I want to make a hook to add a library. The hook will therefore not be able to work on all environments once deployed because here the node is content and the nid will be different.

In hook_form_alter

if ($form_id === 'webform_submission_shop_contact_node_174_add_form') {
    $form['#attached']['library'][] = 'custom_theme/contact';

Do you know if I can modify the id of this webform integrated into a node?

I saw this option here /admin/structure/webform/manage/{webform}/settings/form

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which allows you to create a custom id but this has no effect (probably because the webform is integrated into a node).

  • Are you looking for the base form ID, webform_submission_shop_contact_form in your case, or the webform ID shop_contact?
    – 4uk4
    Commented Feb 20 at 12:53
  • Thanks @4uk4 , I hadn't even thought to look at this solution. if I do dump($form), I can clearly see the #webform_id key : shop_contact. I can now add my library like this in hook_form_alter : if (isset($form['#webform_id']) && $form['#webform_id'] === 'shop_contact') { ... } So simple, it works. Do you want to answer the question so I can vote? Commented Feb 20 at 13:34

1 Answer 1


Setting a breakpoint in a form alter hook I see at least two ways to get the info you are looking for:


or the base form ID (without the node details) in


in your case webform_submission_shop_contact_form, which can also be used in hook_form_BASE_FORM_ID_alter().

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