我使用 WooCommerce 在我的网站上销售在线课程。每个课程(产品)都有许多可下载的文件。 不幸的是,WooCommerce 不会将每个产品的下载分组在一起并列出一长串可用下载。如果有人购买多门课程,将会出现一个非常长且混乱的下载列表,这对用户来说并不友好。
我正在寻找一些代码(PHP、Java、CSS)来将每个产品下载分组到下拉菜单下。这样,如果有人购买 7 门课程,那么在下载页面中将出现 7 个下拉列表,通过单击每个下拉列表,就会出现该特定产品的下载。
我使用了下面的 PHP 代码。它将下载分组在一起,但没有下拉菜单。
/**
* Group Downloadable products by product ID
*
* @param array $downloads
* @return array
*/
function prefix_group_downloadable_products( array $downloads ) {
$unique_downloads = [];
foreach ( $downloads as $download ) {
$list = [
'download_url' => $download['download_url'],
'file_name' => $download['file']['name']
];
if ( array_key_exists( $download['product_id'], $unique_downloads ) ) {
$unique_downloads[ $download['product_id'] ]['list'][] = $list;
continue;
}
$data = $download;
$data['list'] = [ $list ];
$unique_downloads[ $download['product_id'] ] = $data;
}
return $unique_downloads;
}
add_filter( 'woocommerce_customer_get_downloadable_products',
'prefix_group_downloadable_products' );
/**
* Show number list of downloadable files for group product
*
* @param array $download
* @return void
*/
function prefix_downloads_column_download_file( array $download ) {
$lists = $download['list'];
if ( empty( $lists ) ) {
_e( 'No Download Files', 'storefront' );
return;
}
echo '<ol>';
foreach ( $lists as $list ) {
echo '<li>';
echo '<a href="' . esc_url( $list['download_url'] ) . '" class="woocommerce-MyAccount-downloads-file">';
echo esc_html( $list['file_name'] );
echo '</a></li>';
}
echo '</ol>';
}
add_action( 'woocommerce_account_downloads_column_download-file', 'prefix_downloads_column_download_file' );
此外,此代码还会导致“我的订单”和“订单报告”页面中出现错误,导致无法显示下载。错误是这样的:
警告:第 156 行 /home/beatop/domains/sdrecords.ir/public_html/wp-content/themes/hello-theme-child-master/functions.php 中未定义的数组键“list” 没有下载文件
第156行是这样的:
$lists = $download['list'];
如何纠正此错误并添加下拉菜单?
更新:
您需要首先检查
$download['list']
是否存在,以避免出现该问题。
要获取按产品分组的下载下拉列表,需要进行一些更改和添加(需要 JavaScript/jQuery)。
注意:在电子邮件通知上,由于下拉菜单无法工作,我们用指向客户我的帐户“下载”部分的链接替换了下载表内容。
以下代码将处理此下拉列表任何地方,仅在前端:
add_filter( 'woocommerce_customer_get_downloadable_products', 'prefix_group_downloadable_products', 10, 2 );
add_filter( 'woocommerce_order_get_downloadable_items', 'prefix_group_downloadable_products', 10, 2 );
function prefix_group_downloadable_products( $downloads = array(), $order = null ) {
if ( is_admin() ) {
return $downloads;
}
$unique_downloads = []; // Initializing
foreach ( $downloads as $download ) {
$list = [
'download_url' => $download['download_url'],
'file_name' => $download['file']['name']
];
if ( array_key_exists( $download['product_id'], $unique_downloads ) ) {
$unique_downloads[ $download['product_id'] ]['list'][] = $list;
continue;
}
$data = $download;
$data['list'] = [ $list ];
$unique_downloads[ $download['product_id'] ] = $data;
}
return $unique_downloads;
}
add_action( 'woocommerce_account_downloads_column_download-file', 'customize_downloads_columns' );
function customize_downloads_columns( $download = array() ) {
$lists = isset($download['list']) ? $download['list'] : array();
if ( empty( $lists ) ) {
_e( 'No Download Files', 'storefront' );
return;
}
echo '<select class="downloads-dropdown">
<option value="">'. __(' Select download', 'storefront' ) .'</option>';
foreach ( $lists as $list ) {
printf( '<option value="%s">%s</option>',
esc_url($list['download_url']), esc_html($list['file_name']) );
}
echo '</select>';
}
add_action( 'woocommerce_email_order_details', 'customized_email_order_downloads', 5 );
function customized_email_order_downloads() {
$emails = WC()->mailer();
remove_action( 'woocommerce_email_order_details', array( $emails, 'order_downloads' ), 10, 4 );
add_action( 'woocommerce_email_order_details', 'email_order_downloads_custom_table', 9, 4 );
}
function email_order_downloads_custom_table( $order, $sent_to_admin = false, $plain_text = false, $email = '' ) {
$show_downloads = $order->has_downloadable_item() && $order->is_download_permitted() && ! $sent_to_admin && ! is_a( $email, 'WC_Email_Customer_Refunded_Order' );
if ( ! $show_downloads ) {
return;
}
$text_align = is_rtl() ? 'right' : 'left';
$downloads_url = wc_get_endpoint_url('downloads', '', get_permalink( get_option('woocommerce_myaccount_page_id') ) );
?>
<h2 class="woocommerce-order-downloads__title"><?php esc_html_e( 'Downloads', 'woocommerce' ); ?></h2>
<table class="td" cellspacing="0" cellpadding="6" style="width: 100%; font-family: 'Helvetica Neue', Helvetica, Roboto, Arial, sans-serif; margin-bottom: 40px;" border="1">
<tr>
<td class="td" style="text-align:<?php echo esc_attr( $text_align ); ?>;">
<?php printf( __('Downloads are available in your Account %s.', 'storefront'),
'<a href="' . $downloads_url . '" class="button">'. __('"Downloads" section', 'storefront') .'</a>'); ?>
</td>
</tr>
</table>
<?php
}
add_action( 'woocommerce_account_downloads_endpoint', 'custom_downloads_dropdown_js', 20 );
add_action( 'woocommerce_account_view-order_endpoint', 'custom_downloads_dropdown_js', 20 );
add_action( 'woocommerce_thankyou', 'custom_downloads_dropdown_js', 20 );
function custom_downloads_dropdown_js() {
wc_enqueue_js("$(document.body).on('change', 'select.downloads-dropdown', function(){
if( $(this).val() != '' ) {
window.location.href = $(this).val();
}
});");
}
您将得到类似 的内容(在我的帐户 > 下载页面):
在我的帐户>查看订单和收到的订单(谢谢)页面:
通过电子邮件通知(订购并下载):