Create a custom $form_id for a webform integrated into a node?

Question

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):

webform_submission_shop_contact_node_174_add_form

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

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

Answer 1

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

$form['#webform_id']

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

$form_state->getBuildInfo()

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