For my custom field type I needed to get all values at once and the function update_value( $value, $post_id, $field ) only handles each field seperate. Because the Amazon Product Advertising API only allows
… an initial usage limit of 1 request per second*.
I had to find another way.
So after a while I realized, that the only way to get all fields at once on save, is to hook into acf/save_post before it gets modified.
I have to place a seperate action hook into __constructor() / initialize():
add_action('acf/save_post', array($this, 'on_save_values'), 1);
and then iterate over all fields of acf:
function on_save_values( $post_id ) {
// bail early if no ACF data
if( empty($_POST['acf']) ) {
return;
}
// array of field values
$fields = $_POST['acf'];
foreach($fields as $layouts){
//...
}
Maybe this helps anyone facing similar problems.
