在Woocommerce中，我已经实施了from this answer thread to one of my questions下面的代码，允许管理员用户从后端＆＃34;商店订单列表＆＃34;批量下载批量订单的标准化信息。为此，用户要么选择两个日期之间的时间段，要么逐个选择所需的顺序;之后，他运行了一个新的下载文件＆＃39;处理他的请求的行动。
我的代码分为4个钩子函数：
第一个显示html内容，包括日期输入和允许下载操作的新批量操作;
第二个是当用户点击“应用操作”按钮时主要操作发生的位置：收集所有的woocommerce信息并将其写入服务器中的文件中;
第三个请求用户将文件下载到他的PC（我不得不将这个文件从第二部分中分离出来，因为我下载的文件没有混合大量HTML垃圾的唯一方法是添加＆ ＃39;退出＆＃39;结尾;
第四个只是向用户显示一条消息，告知处理和下载了多少订单。
// 1st SUB-SNIPPET: Adding to admin order list bulk dropdown a custom action 'custom_downloads'
add_filter( 'bulk_actions-edit-shop_order', 'downloads_bulk_actions_edit_product', 100, 1 );
function downloads_bulk_actions_edit_product( $actions ) {
?><div class="alignleft actions custom">
<span>From: </span>
<input type="date" id="download_date_initial" name="download_date_initial" value="<?php echo date('Y-m-d'); ?>" class="input-date" />
<span> To: </span>
<input type="date" id="download_date_final" name="download_date_final" value="<?php echo date('Y-m-d'); ?>" class="input-date" />
</div><?php
$actions['write_downloads'] = __( 'Download orders', 'woocommerce' );
return $actions;
}
// 2nd SUB-SNIPPET: Make the action from selected orders
add_filter( 'handle_bulk_actions-edit-shop_order', 'downloads_handle_bulk_action_edit_shop_order', 10, 3 );
function downloads_handle_bulk_action_edit_shop_order( $redirect_to, $action, $post_ids ) {
global $attach_download_dir, $attach_download_file;
global $countries_list, $countries_obj;
if ( $action !== 'write_downloads' ) return $redirect_to; // Exit
$processed_ids = array();
// Opens file
$myfile = fopen($attach_download_dir . '/' . $attach_download_file, "w") or die("Unable to open file!");
$date_initial = $_REQUEST['download_date_initial'];
$date_final = $_REQUEST['download_date_final'];
if ( isset($date_initial) && isset($date_final) ) $args_ = array( 'date_created' => $date_initial . '...' . $date_final );
if ( isset($date_initial) && empty($date_final) ) $args_ = array( 'date_created' => '>=' . $date_initial );
if ( empty($date_initial) && isset($date_final) ) $args_ = array( 'date_created' => '<=' . $date_final );
if ( empty($date_initial) && empty($date_final) ) $args_ = [];
if ( isset($post_ids) && empty($args_)) $array = $post_ids; else {
$orders = wc_get_orders( $args_ );
$array=[]; if (isset($orders)) foreach ($orders as $order) array_push($array, $order->get_id());
}
// Goes through each selected order
foreach ( $array as $key => $post_id ) {
$order = wc_get_order( $post_id );
$order_data = $order->get_data();
// Fills in woocommerce orders info as required ...
fwrite($myfile, XXX);
$processed_ids[] = $post_id;
}
// Closes file
fclose($myfile);
// Returns info to be used elsewhere, namely displaying message
return $redirect_to = add_query_arg( array( 'write_downloads' => '1', 'processed_count' => count( $processed_ids ), ), $redirect_to );
}
// 3rd SUB-SNIPPET: requests admin user to download file to his PC
add_filter( 'handle_bulk_actions-edit-shop_order', 'downloads_handle_bulk_action_edit_shop_order_2', 20, 3 );
function downloads_handle_bulk_action_edit_shop_order_2( $redirect_to, $action, $post_ids ) {
global $attach_download_dir, $attach_download_file;
global $root_page;
// Saves in pc
$file_url = $root_page . 'wp-admin/' . $attach_download_dir . '/' . $attach_download_file;
header('Content-Description: File Transfer');
header('Content-Type: text/plain');
header('Content-Disposition: attachment; filename=' . basename($file_url));
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
ob_clean();
flush();
readfile($file_url);
exit;
}
// 4th SUB-SNIPPET: The results notice from bulk action on orders
add_action( 'admin_notices', 'downloads_bulk_action_admin_notice', 10 );
function downloads_bulk_action_admin_notice() {
if ( empty( $_REQUEST['write_downloads'] ) ) return; // Exit
$count = intval( $_REQUEST['processed_count'] );
printf( '<div id="message" class="updated fade"><p>' . _n( 'Processed %s order for downloads.', 'Processed %s orders for downloads.', $count, 'write_downloads' ) . '</p></div>', $count );
}
但是我在这里有3个问题：
如果我有＆＃34;下载到PC部件＆＃34;，即第3个子片段到位，则消息将不再显示在后端。如果我拿出来，我可以看到该消息，但不再要求用户将文件下载到他的PC。我尝试了几种替代方案，都没有成功。
如果想要逐个下载所选的订单，则没有问题。但是如果想要选择两个日期之间的所有订单，则管理员用户也必须至少选择一个订单来运行批量操作。否则，它将无法处理＆＃39; handle_bulk_actions-edit-shop_order＆＃39;钩。这很烦人，并且对用户没有任何意义，因为只选择该命令使系统通过该挂钩，尽管在这种情况下只有2个日期与确定要下载哪些订单相关。
我想要下载＆＃39;默认情况下在操作按钮中选择的操作，用户无需选择它。我尝试用Javascript做这个但是无济于事......
有什么想法吗？
答案 0 :(得分：1)
对于问题点2（两个），批量操作仅适用于所选订单，不处理日期范围选择 ...所以我已部分删除了您的代码在你的第一个钩子功能（下面）......
您的日期范围下载功能，需要在其他地方单独添加。
对于问题点3（三个），它已在下面的第一个钩子函数中解决（测试并运行）。
对于问题点1（一）我已从第3个函数中删除了钩子，而是从最后一个显示自定义通知的钩子函数触发它...我希望它可以工作（未经测试）
我已经倒置（重新排序）你的第三个和最后一个功能：
// 1. Adding to admin order list bulk dropdown a custom action 'custom_downloads'
add_filter( 'bulk_actions-edit-shop_order', 'downloads_bulk_actions_edit_product', 100, 1 );
function downloads_bulk_actions_edit_product( $actions ) {
$reordered_actions = array( 'write_downloads' => __( 'Download orders', 'woocommerce' ) );
foreach( $actions as $key => $action ){
// Reinserting reordered actions
$reordered_actions[$key] = $action;
}
?>
<script type="text/javascript">
jQuery( function($){
$('#bulk-action-selector-top').find('option').eq(0).remove(); // Remove defaut option
$('#bulk-action-selector-top').val('write_downloads'); // To be sure select "downloads"…
});
</script>
<?php
return $reordered_actions;
}
// 2. Make the action from selected orders
add_filter( 'handle_bulk_actions-edit-shop_order', 'downloads_handle_bulk_action_edit_shop_order', 10, 3 );
function downloads_handle_bulk_action_edit_shop_order( $redirect_to, $action, $post_ids ) {
global $attach_download_dir, $attach_download_file, $countries_list, $countries_obj;
if ( $action !== 'write_downloads' ) return $redirect_to; // Exit
$processed_ids = array();
// Opens file
$myfile = fopen($attach_download_dir . '/' . $attach_download_file, "w") or die("Unable to open file!");
$date_initial = $_REQUEST['download_date_initial'];
$date_final = $_REQUEST['download_date_final'];
if ( isset($date_initial) && isset($date_final) ) $args_ = array( 'date_created' => $date_initial . '...' . $date_final );
if ( isset($date_initial) && empty($date_final) ) $args_ = array( 'date_created' => '>=' . $date_initial );
if ( empty($date_initial) && isset($date_final) ) $args_ = array( 'date_created' => '<=' . $date_final );
if ( empty($date_initial) && empty($date_final) ) $args_ = [];
if ( isset($post_ids) && empty($args_)) $array = $post_ids; else {
$orders = wc_get_orders( $args_ );
$array=[]; if (isset($orders)) foreach ($orders as $order) array_push($array, $order->get_id());
}
// Goes through each selected order
foreach ( $array as $key => $post_id ) {
$order = wc_get_order( $post_id );
$order_data = $order->get_data();
// Fills in woocommerce orders info as required ...
fwrite($myfile, XXX);
$processed_ids[] = $post_id;
}
// Closes file
fclose($myfile);
// Returns info to be used elsewhere, namely displaying message
return $redirect_to = add_query_arg( array( 'write_downloads' => '1', 'processed_count' => count( $processed_ids ), ), $redirect_to );
}
// 3. Display a results notice from this bulk action on orders and trigger download to PC
add_action( 'admin_notices', 'downloads_bulk_action_admin_notice', 10 );
function downloads_bulk_action_admin_notice() {
if ( empty( $_REQUEST['write_downloads'] ) ) return; // Exit
$count = intval( $_REQUEST['processed_count'] );
printf( '<div id="message" class="updated fade"><p>' . _n( 'Processed %s order for downloads.', 'Processed %s orders for downloads.', $count, 'write_downloads' ) . '</p></div>', $count );
// Execute the request to download file to PC
downloads_to_pc();
}
// 4. Simple function that request user to download file to his PC
function downloads_to_pc() {
global $attach_download_dir, $attach_download_file, $root_page;
// Saves in pc
$file_url = $root_page . 'wp-admin/' . $attach_download_dir . '/' . $attach_download_file;
header('Content-Description: File Transfer');
header('Content-Type: text/plain');
header('Content-Disposition: attachment; filename=' . basename($file_url));
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
ob_clean();
flush();
readfile($file_url);
exit;
}
代码进入活动子主题（或活动主题）的function.php文件。未经测试，它可以工作。