/**
  * Save meta box data.
  *
  * @param int $post_id
  * @param WP_Post $post
  */
 public static function save($post_id, $post)
 {
     global $wpdb;
     // Check for dupe coupons
     $coupon_code = apply_filters('woocommerce_coupon_code', $post->post_title);
     $id_from_code = wc_get_coupon_id_by_code($coupon_code, $post_id);
     if ($id_from_code) {
         WC_Admin_Meta_Boxes::add_error(__('Coupon code already exists - customers will use the latest coupon with this code.', 'woocommerce'));
     }
     $coupon = new WC_Coupon($post_id);
     $coupon->set_props(array('code' => $post->post_title, 'discount_type' => wc_clean($_POST['discount_type']), 'amount' => wc_format_decimal($_POST['coupon_amount']), 'date_expires' => wc_clean($_POST['expiry_date']), 'individual_use' => isset($_POST['individual_use']), 'product_ids' => array_filter(array_map('intval', explode(',', $_POST['product_ids']))), 'excluded_product_ids' => array_filter(array_map('intval', explode(',', $_POST['exclude_product_ids']))), 'usage_limit' => absint($_POST['usage_limit']), 'usage_limit_per_user' => absint($_POST['usage_limit_per_user']), 'limit_usage_to_x_items' => absint($_POST['limit_usage_to_x_items']), 'free_shipping' => isset($_POST['free_shipping']), 'product_categories' => array_filter(array_map('intval', (array) $_POST['product_categories'])), 'excluded_product_categories' => array_filter(array_map('intval', (array) $_POST['exclude_product_categories'])), 'exclude_sale_items' => isset($_POST['exclude_sale_items']), 'minimum_amount' => wc_format_decimal($_POST['minimum_amount']), 'maximum_amount' => wc_format_decimal($_POST['maximum_amount']), 'email_restrictions' => array_filter(array_map('trim', explode(',', wc_clean($_POST['customer_email']))))));
     $coupon->save();
     do_action('woocommerce_coupon_options_save', $post_id);
 }