In Drupal 9, I added a views_add_to_cart_form view mode to be able to render a product entity with only the Variations field formatted as add to cart form being displayed. That all works as expected, but I am trying to remove the quantity widget on the commerce add to cart form for that specific view display by using unset($form['quantity']);.
I am not sure if it is better to bring the view display information into a form_alter, or if it would be cleaner to get the form information in a hook_entity_view_display_alter.
I was trying something like this in the form alter, but felt like it was not at all the right way to go about it
$display = \Drupal::service('entity_display.repository')->getViewDisplay('commerce_product', 'simple_product', 'views_add_to_cart_form');
if (isset($display)) {
unset($form['quantity']);
}
(I realize my if (isset($dsiplay)) { won't cut the mustard...)
It seems like it would be better to use hook_entity_view_display_alter and get the necessary $form stuff in there:
/**
* Implements hook_entity_view_display_alter().
*/
function MY_entity_view_display_alter(\Drupal\Core\Entity\Display\EntityViewDisplayInterface $display, array $context) {
if ($context['entity_type'] == 'commerce_product' && $context['view_mode'] == 'views_add_to_cart_form') {
// Get access to the $form_id and unset($form['quantity']);
}
}
So how do I get access to &$form, FormStateInterface &$form_state, $form_id stuff inside hook_entity_view_display_alter?
