Change price to a mandatory item

Hi,
you can make the price field required by adding the code below in your theme functions.php file

add_filter( "adverts_form_load", "adverts_form_load_11115" );
function adverts_form_load_11115( $form ) {
    if( $form['name'] != "advert" ) {
        return $form;
    }
    foreach( $form["field"] as $key => $field ) {
        if( $field["name"] != "adverts_price" ) {
            continue;
        }
        adverts_form_add_filter("no_leading_zero", array(
            "callback" => "no_leading_zero"
        ));
        $form["field"][$key]["filter"][] = array( "name" => "no_leading_zero" );
        $form["field"][$key]["validator"] = array( array( "name" => "is_required" ) );
    }
    return $form;
}
function no_leading_zero( $data ) {
    return ltrim( $data, "0" );
}

or by using the Custom Fields extension.

perfect thank you very much!
You are my hero ??