/**
* Obtain the referring affiliate's id.
* @param string $service by name
* @return int affiliate id or false if none applies
*/
public static function get_referrer_id($service = null)
{
$affiliate_id = false;
switch ($service) {
default:
if (isset($_COOKIE[AFFILIATES_COOKIE_NAME])) {
$affiliate_id = affiliates_check_affiliate_id_encoded(trim($_COOKIE[AFFILIATES_COOKIE_NAME]));
}
}
if (!$affiliate_id) {
if (get_option('aff_use_direct', true)) {
// Assume a direct referral
$affiliate_id = affiliates_get_direct_id();
}
}
return apply_filters('affiliates_service_affiliate_id', $affiliate_id, $service);
}
/**
* Renders the referrer's username.
* @param array $atts
* @param string $content not used
* @return string
*/
public static function referrer_user($atts, $content = null)
{
$options = shortcode_atts(array('direct' => false, 'display' => 'user_login'), $atts);
extract($options);
$output = '';
require_once 'class-affiliates-service.php';
$affiliate_id = Affiliates_Service::get_referrer_id();
if ($affiliate_id) {
if ($direct || $affiliate_id !== affiliates_get_direct_id()) {
if ($user_id = affiliates_get_affiliate_user($affiliate_id)) {
if ($user = get_user_by('id', $user_id)) {
switch ($display) {
case 'user_login':
$output .= $user->user_login;
break;
case 'user_nicename':
$output .= $user->user_nicename;
break;
case 'user_email':
$output .= $user->user_email;
break;
case 'user_url':
$output .= $user->user_url;
break;
case 'display_name':
$output .= $user->display_name;
break;
default:
$output .= $user->user_login;
}
$output = wp_strip_all_tags($output);
}
}
}
}
return $output;
}
