如何获取帖子批量编辑动作触发器和编辑后的帖子ID？

我想发送电子邮件，如果一篇文章的邮戳更改为预期值。所以之前我在做循环检查每个帖子中的帖子元。我在这里运行循环admin_init 钩但这会减慢网站的速度，所以我想只在save post上这样做。因此，编辑后的文章可能具有我所期望的元值，然后我将发送邮件。

以前的

$the_query = new WP_Query( $args );
if ( $the_query->have_posts() ) {

    while ( $the_query->have_posts() ) {
        $the_query->the_post();
        if(get_post_meta($the_query->post->ID,\'custom_post_meta\',true)==\'ok\'){
        //mail() function goes here
        }
    }

} 

wp_reset_postdata();

这是不需要的，因为只有某些帖子可以编辑。每次盲目地用循环检查post-meta都是浪费。

所以我想用在save_post 保存时，我们将检查post meta是否更改为预期值，然后我们将发送邮件。如下所示

function testing($post_id){
    if(get_post_meta($the_query->post->ID,\'send_mail\',true)==\'ok\'){
        //mail() function goes here
        }
        //only for edited post alone i\'m checking here
}

add_action(\'save_post\',\'testing\');

还有另外两种可能更改post meta的场景，分别是bulk edit 和quick edit

为了快速编辑，我找到了这个

function check(){
var_dump($_REQUEST);//can able to get the post id, i can do the rest
}
add_action(\'check_ajax_referer\',\'check\');

但对于批量编辑，我没有任何线索。我试着在this answer 我发现了$_REQUEST 可能包含action 和postid. 所以我认为批量编辑可能会在$_REQUEST[\'action\'] 但当我这样尝试时，我找不到

function another_check(){
var_dump($REQUEST[\'action\']);
}

add_action(\'admin_init\',\'another_check\');

我找到了这个check_admin_referer 也一样，但我无法确定，因为当我转储var时，它不会打印。这个会吗(check_admin_referer) 这是工作还是套装？有没有其他简单的方法来获取已编辑的帖子ID？

How can i get the List of post id on bulk edit? 从那时起，我可以进行检查并相应地发送邮件

add_action( \'updated_post_meta\', \'listen_to_meta_change\', 20, 4 ); function listen_to_meta_change( $mid, $pid, $key, $value ) { if ( $key !== \'send_mail\' ) return; // if the key is not the right one do nothing $value = maybe_unserialize( $value ); if ( $value !== \'on\' ) return; // if the value is not the right one do nothing // if we\'re here, the post meta \'send_mail\' was set to \'on\' for a post, let\'s get it $post = get_post( $pid ); if ( $post->post_type !== \'post\' ) return; // maybe check for a specific post type? $recipient = new WP_User( $post->post_author ); // get the post author if ( ! $recipient->exists() ) return; // check if is a valid user static $sended = array(); if ( ! isset($sended[$recipient->ID]) ) $sended[$recipient->ID] = array(); if ( isset($sended[$recipient->ID][$pid]) ) { // already sent email for this user & post & request: that\'s enough, let\'s exit return; } $sended[$recipient->ID][] = $pid; // ok, send the email, you can write the function, by yourself, isn\'t it? // be sure to have control on how many emails you send to an user: // too much emails slow down your site and also make you a spammer... // probably you can take control that using an user meta... send_email_to_user_when_meta_updated( $recipient ); }

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