Issue #3291771 by jonathan1055, demon326: Scheduler date fields not being...

    // of returned possible form ids, and pass that on to the helper function.

    _scheduler_devel_generate_form_alter($form, $form_state, $form_id, $entityTypeId);

  }

}

/**

 * Implements hook_form_FORM_ID_alter() for media_library_add_form_upload.

 */

function scheduler_form_media_library_add_form_upload_alter(&$form, FormStateInterface $form_state, $form_id) {

  elseif (in_array($form_id, ['media_library_add_form_oembed', 'media_library_add_form_upload'])) {

    if (isset($form['media'])) {

      $media = $form_state->get('media');

    // Call the entity form alter function for each of the new media items being

    // uploaded.

      // Call the entity form alter function for each of the new media items

      // being uploaded.

      foreach ($media as $key => $entity) {

        _scheduler_entity_form_alter($form['media'][$key]['fields'], $form_state, $form_id, $entity);

      }

    }

  }

}

/**

 * Form alter handling for entity forms - add and edit.

  // properly amend the form in this scenario and the best we can do is remove

  // the Scheduler fields for safety. The Scheduler issue discussing this is

  // https://www.drupal.org/project/scheduler/issues/2916730

  // Two core issues have been raised, and if/when these are committed then we

  // can remove this conditional check and allow the function to run fully.

  // @todo Remove this conditional check when the two issues have been resolved.

  // @see https://www.drupal.org/project/drupal/issues/3269103

  // @see https://www.drupal.org/project/drupal/issues/3269471

  if ($form_id == 'media_library_add_form_upload') {

  if (!method_exists($form_state->getFormObject(), 'getFormDisplay')) {

    unset($form['publish_on']);

    unset($form['unpublish_on']);

    return;

  // Get the form display object. If this does not exist because the form is

  // prevented from displaying, such as in Commerce Add Product before any store

  // has been created, we can not (and do not need) to do anything, so exit.

  // has been created, we can not (and do not need to) do anything, so exit.

  $param = ($form_id == 'media_library_add_form_upload') ? $entity : $form_state;

  if (!$display = $form_state->getFormObject()->getFormDisplay($param)) {

    return;