Question

我在插件中创建一个函数，当帖子移动到垃圾箱时，该函数将删除数据库行。但是，我无法使用get_posts()获取post_id。

这是我的代码：

function delete_condition($post)
{
    global $wpdb;

        $allposts = get_posts(array(
        'numberposts' => -1,
        'category' => 0, 'orderby' => 'date',
        'order' => 'DESC', 'include' => array(),
        'exclude' => array(), 'meta_key' => '',
        'meta_value' =>'', 'post_type' => 'job',
        'suppress_filters' => true));

        foreach( $allposts as $postinfo ) {
            $wpdb->delete('rule', array('post_id' => $postinfo));
        }

}
add_action('wp_trash_post', 'delete_condition', 10, 1);

感谢

Answer 1

您在此处使用的动作挂钩wp_trash_post将$ post_id作为参数传递给函数。请参阅：https://codex.wordpress.org/Plugin_API/Action_Reference/trash_post

听起来你想删除一个表中与被删除的邮件ID相同的所有行。

我想你可能想写这样的东西：

function delete_condition( $post_id ) {
 global $wpdb;
 // Delete rows in the rule table which have the same post_id as this one
 if ( 'job' === get_post_type( $post_id ) ) {
     $wpdb->delete('rule', array('post_id' => $post_id ) );
 }
}

add_action('wp_trash_post', 'delete_condition', 10, 1);

Answer 2

$ postinfo是对象。您只想要帖子的ID。所以你应该写$ postinfo-＆gt; ID。用下面的代码替换你的循环 -

foreach( $allposts as $postinfo ) {
            $postinfoID = $postinfo->ID;
            $wpdb->delete('rule', array('post_id' => $postinfoID));
   }

Answer 3

    <?php
function delete_condition($post)
{
    global $wpdb;

        $allposts = get_posts(array(
        'numberposts' => -1,
        'post_status' => 'any',
        'category' => 0, 'orderby' => 'date',
        'order' => 'DESC', 'include' => array(),
        'exclude' => array(), 'meta_key' => '',
        'meta_value' =>'', 'post_type' => 'job',
        'suppress_filters' => true));

        foreach( $allposts as $postinfo ) {
            $wpdb->delete('rule', array('post_id' => $postinfo));
        }

}
add_action('wp_trash_post', 'delete_condition', 10, 1);
?>

如何获取所有post_id删除帖子？ WordPress的

3 个答案: