Who wants same feature, there is solution:
put this to functions.php
function trim_acf_fields( $post_id )
{
// load from post
if( isset($_POST['fields']) ) {
foreach($_POST['fields'] as $key => $value) {
$_POST['fields'][$key] = trim($value);
}
}
}
// run before ACF saves the $_POST['fields'] data
add_action('acf/save_post', 'trim_acf_fields', 1);
Thank you for reply!
I know that i could trim it on output, it is good only for website.
I use WordPress with custom fields as App with REST API with WP-API module or JSON-API module for another platforms like mobile or facebook app.
And there is neccesary to have consistent data for every device.
Maybe i could use some Filter hooks to trim all fields.
