WordPress：使用自定義字段的日期來刪除帖子

Question

我正在使用自定義帖子類型在我的網站上顯示事件。 該事件有兩個自定義字段的開始和結束日期。日期以以下格式存儲：YYYY-MM-DD。

我正在使用該字段對前端中的事件進行排序，我將根據當前日期從下一個事件開始。

在此日期之後，事件不再顯示在前端，因爲它們位於過去。

現在我想刪除結束日期後的事件。 有沒有辦法做到這一點？

我發現從@彼得 - 古森一個很好的解決方案的天數後刪帖：https://wordpress.stackexchange.com/questions/209046/delete-expired-posts-after-a-number-of-days-after-they-expired

但我不知道如何使用此功能和元場。

任何想法/提示？

我的代碼：

function expirePastEvents() { 

    $current_date_query = date ('Y-m-d'); 

    $postType = 'event'; // Change this to your post type name. 
    $metaKeyName = 'gid_22'; // Change this to your meta key name for end date. 
    $skipTrash = false; // Whether or not to skip the trash. 

    $posts = new WP_Query([ 
     'post_type' => $postType, 
     'fields' => 'ids', 
     'post_status' => 'publish', 
     'meta_query' => [ 
      [ 
       'key' => $metaKeyName, 
       //'value' => current_time('timestamp'), 
       'value' => $current_date_query, 
       'compare' => '<=' 
      ] 
     ] 
    ]); 

    foreach ($posts->posts as $post) { 
     wp_delete_post($post->ID, $skipTrash); 
    } 
} 



// expired_post_delete hook fires when the Cron is executed 
add_action('expired_post_delete', 'expirePastEvents'); 


// Add function to register event to wp 
add_action('wp', 'register_daily_events_delete_event'); 
function register_daily_events_delete_event() { 
    // Make sure this event hasn't been scheduled 
    if(!wp_next_scheduled('expired_post_delete')) { 
     // Schedule the event 
     wp_schedule_event(time(), 'hourly', 'expired_post_delete'); 
    } 
} 

Answer 1

我找到了解決辦法

這裏是我的代碼：

function get_delete_old_events() { 

    $past_query = date('Y-m-d', strtotime('-1 day')); 

    // Set our query arguments 
    $args = [ 
     'fields'   => 'ids', // Only get post ID's to improve performance 
     'post_type'  => 'event', // Post type 
     'posts_per_page' => -1, 
     'meta_query'  => [ 
      [ 
       'key'  => 'gid_22', // Replace this with the event end date meta key. 
       'value' => $past_query, 
       'compare' => '<=' 
      ] 
     ] 
     ]; 
    $q = get_posts($args); 

    // Check if we have posts to delete, if not, return false 
    if (!$q) 
     return false; 

    // OK, we have posts to delete, lets delete them 
    foreach ($q as $id) 
     wp_trash_post($id); 
} 

// expired_post_delete hook fires when the Cron is executed 
add_action('old_event_delete', 'get_delete_old_events'); 

// Add function to register event to wp 
add_action('wp', 'register_daily_events_delete_event'); 

function register_daily_events_delete_event() { 
    // Make sure this event hasn't been scheduled 
    if(!wp_next_scheduled('old_event_delete')) { 
     // Schedule the event 
     wp_schedule_event(time(), 'hourly', 'old_event_delete'); 
    } 
} 

我已經改變了說法wp_delete_post()到wp_trash_post()因爲wp_delete_post()僅適用於本地的帖子，網頁和附件。來自@rarst的很好的回答：https://wordpress.stackexchange.com/questions/281877/error-after-deleting-custom-post-type-with-a-function-no-trash-used/281888#281888

Answer 2

您所提供的鏈接顯示你如何做到這一點，你只需要改變一些在回答中的信息來得到它的工作。

function expirePastEvents() { 
    $postType = 'events'; // Change this to your post type name. 
    $metaKeyName = 'end_date'; // Change this to your meta key name for end date. 
    $skipTrash = false; // Whether or not to skip the trash. 

    $posts = new WP_Query([ 
     'post_type' => $postType, 
     'fields' => 'ids', 
     'post_status' => 'publish', 
     'meta_query' => [ 
      [ 
       'key' => $metaKeyName, 
       'value' => current_time('timestamp'), 
       'compare' => '<=' 
      ] 
     ] 
    ]); 

    foreach ($posts->posts as $post) { 
     wp_delete_post($post->ID, $skipTrash); 
    } 
} 

Answer 3

請執行下列操作步驟：

1. 安裝WP Control插件。
2. 激活插件。
3. 導航到wp-admin/tools.php？page = crontrol_admin_manage_page，然後在Add Cron Event部分中，在下面的Hook Name選項卡中添加'my_daily_event_delete'。

4. 保存活動。
   
   將下面的代碼添加到您的functions.php文件中。
   
   

   add_action('my_daily_event_delete', '_delete_this_daily'); 
   
   function _delete_this_daily() { 
       $past = strtotime("- 1 day"); 
       // Set our query arguments 
       $args = [ 
       'fields'   => 'ids', // Only get post ID's to improve performance 
       'post_type'  => 'event', // Post type 
       'posts_per_page' => -1, 
       'meta_query'  => [ 
        [ 
         'key'  => 'event_end_date', // Replace this with the event end date meta key. 
         'value' => $past, 
         'compare' => '<=' 
        ] 
       ] 
       ]; 
       $q = get_posts($args); 
   
       // Check if we have posts to delete, if not, return false 
       if (!$q) { 
       return false; 
       } 
       // OK, we have posts to delete, lets delete them 
       foreach ($q as $id){ 
        wp_delete_post($id); 
       } 
   }