code

function upload_content($post_id) {
if (get_field('type', $post_id)=='d') {
//$designs = get_field('designs', $post_id);
foreach ($designs as $design) {
$design_post = array(
    'post_title'    => $design['title'],
    'post_content'  => '',
    'post_status'   => 'draft',
    'post_type'     => 'design',
    'post_author'   => 1
);
$photo_post_id = wp_insert_post( $design_post );
update_field('designer', get_field('author', $post_id), $photo_post_id);
update_field('story', $design['story'], $photo_post_id);
update_field('design', $design['design'], $photo_post_id);
}
}
if (get_field('type', $post_id)=='p') {
$photos = get_field('photos', $post_id);
foreach ($photos as $photo) {
$photo_post = array(
    'post_title'    => $photo['title'],
    'post_content'  => '',
    'post_status'   => 'draft',
    'post_type'     => 'photograph',
    'post_author'   => 1
);
$photo_post_id = wp_insert_post( $photo_post );
update_field('photographer', get_field('author', $post_id), $photo_post_id);
update_field('story', $photo['story'], $photo_post_id);
update_field('photograph', $photo['image'], $photo_post_id);
}
}
if (get_field('type', $post_id)=='c') {
$commentaries = get_field('commentaries', $post_id);
foreach ($commentaries as $commentary) {
$commentary_post = array(
    'post_title'    => $commentary['title'],
    'post_content'  => '',
    'post_status'   => 'draft',
    'post_type'     => 'commentary',
    'post_author'   => 1
);
$commentary_post_id = wp_insert_post( $commentary_post );
update_field('commentator', get_field('author', $post_id), $commentary_post_id);
update_field('commentary', $commentary['commentary'], $commentary_post_id);
update_field('verse_reference', $commentary['verse_reference'], $commentary_post_id);
}
}
};
add_filter('acf/save_post', 'upload_content', 10, 3);