/**
* Removes add to cart buttons from single product page if:
* - the product is sold-individually,
* - has a voucher attached, and
* - the product is already in the cart
* to prevent multiple purchases of a voucher in an order.
*/
function sv_wc_pdf_product_vouchers_disable_multiple_quantities()
{
// Bail if PDF Product vouchers isn't active
if (!function_exists('wc_pdf_product_vouchers')) {
return;
}
// Get the ID for the current product
global $product;
$product_id = $product->is_type('variation') ? $product->variation_id : $product->id;
// bail unless there's a voucher and the product is sold individually
if (!($product->is_sold_individually() && WC_PDF_Product_Vouchers_Product::has_voucher($product))) {
return;
}
// check if the item is already in the cart
foreach (WC()->cart->get_cart() as $cart_key => $cart_item) {
$cart_product = $cart_item['data'];
// if our product ID matches an item in the cart, disable purchasing
if ($product->id === $cart_product->id) {
// remove add to cart button
remove_action('woocommerce_single_product_summary', 'woocommerce_template_single_add_to_cart', 30);
// add a notice that you can only purchase one
function no_purchase_message()
{
echo '<div class="woocommerce-info">Looks like this product is already in your cart! You can only purchase one per order.</div>';
}
add_action('woocommerce_single_product_summary', 'no_purchase_message', 30);
}
}
}
/**
* Pluggable function to render the frontend product page voucher fields
*
* @since 1.2
* @param WC_Product $product the voucher product
*/
function wc_pdf_product_vouchers_render_product_voucher_fields($product)
{
if ($product->is_type('variable')) {
foreach ($product->get_children() as $variation_product_id) {
$products[] = wc_get_product($variation_product_id);
}
} else {
$products[] = $product;
}
foreach ($products as $product) {
$voucher = WC_PDF_Product_Vouchers_Product::get_voucher($product);
if ($voucher) {
$fields = $voucher->get_user_input_voucher_fields();
$images = $voucher->get_image_urls();
if ($fields || $images) {
// load the template file
wc_get_template('single-product/product-voucher.php', array('product' => $product, 'product_id' => isset($product->variation_id) ? $product->variation_id : $product->id, 'voucher' => $voucher, 'fields' => $fields, 'images' => $images), '', wc_pdf_product_vouchers()->get_plugin_path() . '/templates/');
}
}
}
}
/**
* Called from the customer account page, this adds the date to the
* voucher links so they are a little bit easier to distinguish from one
* another. Also filter out links for voucher files that don't exist for
* whatever reason.
*
* @since 1.2
* @param array $downloads available downloads
*
* @return array available downloads
*/
public function customer_get_downloadable_products($downloads)
{
$new_downloads = array();
foreach ($downloads as $download) {
$product = wc_get_product($download['product_id']);
// is the product a voucher product?
if (false !== strpos($download['download_id'], 'wc_vouchers_') && WC_PDF_Product_Vouchers_Product::has_voucher($product)) {
$order = wc_get_order($download['order_id']);
// download id looks like "wc_vouchers_{voucher number}"
$voucher = WC_PDF_Product_Vouchers_Order::get_voucher_by_voucher_number($order, str_replace('wc_vouchers_', '', $download['download_id']));
if ($voucher && $voucher->file_exists(WC_PDF_Product_Vouchers::get_uploads_path())) {
$download['download_name'] .= ' (' . sprintf(_x('Voucher %s %s', 'Voucher number and date', WC_PDF_Product_Vouchers::TEXT_DOMAIN), $voucher->get_voucher_number(), date_i18n(get_option('date_format'), strtotime($order->order_date))) . ')';
$new_downloads[] = $download;
}
} else {
// regular file
$new_downloads[] = $download;
}
}
return $new_downloads;
}
/**
* Add any user-supplied voucher field data to the cart item data, to
* set in the session
*
* @since 1.2
* @param array $cart_item_data associative-array of name/value pairs of cart item data
* @param int $product_id the product identifier
* @param int $variation_id optional product variation identifer
*
* @return array associative array of name/value pairs of cart item
* data to set in the session
*/
public function add_cart_item_voucher_data($cart_item_data, $product_id, $variation_id)
{
$_product_id = $variation_id ? $variation_id : $product_id;
$product = wc_get_product($_product_id);
// is this a voucher product?
if (WC_PDF_Product_Vouchers_Product::has_voucher($product)) {
$voucher = WC_PDF_Product_Vouchers_Product::get_voucher($product);
// record the voucher id
$cart_item_data['voucher_id'] = $voucher->id;
// set the selected voucher image id, or default to the main one if the voucher was added from the catalog
$cart_item_data['voucher_image_id'] = isset($_POST['voucher_image'][$_product_id]) ? $_POST['voucher_image'][$_product_id] : $voucher->image_id;
// set any user-input fields, which will end up in the order item meta data (which can be displayed on the frontend)
$fields = $voucher->get_user_input_voucher_fields();
foreach ($fields as $field) {
if (isset($_POST[$field['name']][$_product_id])) {
$cart_item_data['voucher_item_meta_data'][$field['name']] = $_POST[$field['name']][$_product_id];
}
}
// add a random so that multiple of the same product can be added to the cart when "sold individually" is enabled
$cart_item_data['voucher_random'] = uniqid('voucher_');
}
return $cart_item_data;
}
/**
* Called when an order is updated from the admin, creates a new voucher if
* a voucher item was added, and updates the voucher expiration and redeem
* item meta.
*
* @since 1.2
* @param int $post_id the post identifier
* @param object $post the order post object
*
* @return array order item data to persist
*/
public function process_shop_order_meta($post_id, $post)
{
// get the order
$order = wc_get_order($post_id);
$order_items = $order->get_items();
// loop through any order items by id
if (isset($_POST['order_item_id'])) {
foreach ($_POST['order_item_id'] as $item_id) {
$item_id = absint($item_id);
if (!isset($order_items[$item_id]) || !$order_items[$item_id]) {
continue;
}
$order_item = $order_items[$item_id];
$product_id = $order_item['variation_id'] ? $order_item['variation_id'] : $order_item['product_id'];
$product = wc_get_product($product_id);
// if we have a voucher product, but no voucher set for the order item, this is likely an item newly added from the admin, so create a default voucher
if ($product && $product->is_downloadable() && WC_PDF_Product_Vouchers_Product::has_voucher($product) && (!isset($order_item['voucher_id']) || !$order_item['voucher_id'])) {
$voucher = WC_PDF_Product_Vouchers_Product::get_voucher($product);
$voucher_number = WC_PDF_Product_Vouchers_Voucher::generate_voucher_number();
wc_add_order_item_meta($item_id, '_voucher_image_id', $voucher->get_image_id());
wc_add_order_item_meta($item_id, '_voucher_id', $voucher->id);
wc_add_order_item_meta($item_id, '_voucher_redeem', array_pad(array(), $order_item['qty'], null));
// TODO: need to handle the order item quantity being changed from the admin
wc_add_order_item_meta($item_id, '_voucher_number', $voucher_number);
// if download permissions have already been granted, grant permission to the newly created voucher
if (isset($order->download_permissions_granted[0]) && 1 == $order->download_permissions_granted[0]) {
wc_downloadable_file_permission('wc_vouchers_' . $voucher_number, $product_id, $order);
}
}
if (isset($_POST['voucher_expiration'][$item_id])) {
wc_update_order_item_meta($item_id, '_voucher_expiration', $_POST['voucher_expiration'][$item_id]);
}
if (isset($_POST['voucher_redeem'][$item_id])) {
wc_update_order_item_meta($item_id, '_voucher_redeem', $_POST['voucher_redeem'][$item_id]);
}
}
}
}
/**
* Return our voucher file path as the download file
*
* @since 1.2
* @param string $download_file_path the download file path
* @param int $product the product
* @param int $download_id downloadable file identifier
*
* @return string the download file path
*/
public function voucher_file_download_path($download_file_path, $product, $download_id)
{
global $wpdb, $post;
// if there is no download file path set, it means this might be an item voucher being requested
if (!$download_file_path) {
$order_id = null;
if ($post && 'shop_order' == $post->post_type && $post->ID) {
$order_id = $post->ID;
}
// are we being called from the context of the has_file() checks?
if (!$order_id && (!isset($_GET['download_file']) || !isset($_GET['order']) || !isset($_GET['email']) || !isset($_GET['key']))) {
if (WC_PDF_Product_Vouchers_Product::has_voucher($product)) {
return $download_id;
} else {
// otherwise, non-voucher product, return the passed-in value
return $download_file_path;
}
}
if (!$order_id) {
// get the order id from the GET parameters when needed
$order_key = urldecode($_GET['order']);
$email = str_replace(' ', '+', urldecode($_GET['email']));
$order_id = $wpdb->get_var($wpdb->prepare("\n\t\t\t\t\tSELECT order_id\n\t\t\t\t\tFROM {$wpdb->prefix}woocommerce_downloadable_product_permissions\n\t\t\t\t\tWHERE user_email = %s\n\t\t\t\t\tAND order_key = %s\n\t\t\t\t\tAND product_id = %s\n\t\t\t\t\tAND download_id = %s", $email, $order_key, isset($product->variation_id) ? $product->variation_id : $product->id, $download_id));
}
// get and return the path to the requested voucher file
if ($order_id) {
$order = wc_get_order($order_id);
$voucher = WC_PDF_Product_Vouchers_Order::get_voucher_by_voucher_number($order, str_replace('wc_vouchers_', '', $download_id));
if ($voucher && $voucher->file_exists($this->plugin->get_uploads_path())) {
$download_file_path = $voucher->get_voucher_full_filename($this->plugin->get_uploads_path());
if ('redirect' === get_option('woocommerce_file_download_method')) {
$download_file_path = $voucher->convert_path_to_url($file_path);
}
}
}
}
return $download_file_path;
}
