mepr-list-unsubscribed-memberships.php

<?php

add_shortcode('mepr-list-unsubscribed-memberships', function() {
  $content = '';
  $user = MeprUtils::get_currentuserinfo();
  $memberships = MeprProduct::get_all();
  $unsubscribed_memberships = array();

  if(!$user) {
    return $content;
  }

  if(is_array($memberships)) {
    foreach($memberships as $membership) {
      if(!$user->is_already_subscribed_to($membership->ID)) {
        $unsubscribed_memberships[] = $membership;
      }
    }
  }

  if(!empty($unsubscribed_memberships)) {
    $content .= '<ul>';
    foreach($unsubscribed_memberships as $membership) {
      $content .= '<li>';
      $content .= '<a href="' . $membership->url() . '">' . $membership->post_title . '</a>';
      $content .= '</li>';
    }
    $content .= '</ul>';
  }

  return $content;
});