在发布/更新时向页面添加字母/数字

时间:2015-11-03 02:35:36

标签: php wordpress

我希望在Wordpress上为每个页面创建一些post meta。这一点有点用于分类。每个顶级页面都有一个字母,如A B C D等。顶级页面的每个子页面都有一个数字,如01,02,03,04。我试图修改我的代码以进行发布/更新/删除,以便相应地添加/更新元,无论页面是否被删除或添加。我的问题是如何检查它是顶级页面还是正在保存的子页面?代码似乎只使用代码的顶级部分,无论是否为父级,都会保存不同的字母。

function updateNumbers($post) {
    global $wpdb;
    $querystr = "SELECT $wpdb->posts.* FROM $wpdb->posts WHERE $wpdb->posts.post_status = 'publish' AND $wpdb->posts.post_type = 'page' ";
    $pageposts = $wpdb->get_results($querystr, OBJECT);
    if($post->post_parent > 0) {
        //Child Page
        $counts = 01;
        if ($pageposts):
        foreach ($pageposts as $post):
        setup_postdata($post);
        $counts++;
        $parent_letter = get_post_meta($post->post_parent, 'incr_letter', true);
        add_post_meta($post->ID, 'incr_number', $counts, true);
        update_post_meta($post->ID, 'incr_number', $counts);
        add_post_meta($post->ID, 'incr_letter', $parent_letter, true);
        update_post_meta($post->ID, 'incr_letter', $parent_letter);
        endforeach;
        endif;
    }else {
        //Top Level Page
        $counts = A;
        if ($pageposts):
        foreach ($pageposts as $post):
        setup_postdata($post);
        $counts++;
        add_post_meta($post->ID, 'incr_letter', $counts, true);
        update_post_meta($post->ID, 'incr_letter', $counts);
        endforeach;
        endif;
    }
}

add_action ( 'publish_post', 'updateNumbers' );
add_action ( 'deleted_post', 'updateNumbers' );
add_action ( 'edit_post', 'updateNumbers' );

所需的层次结构与此类似:

- Page 1 - A.01
- Page 2 - B.01
 -- Page 2 Child - B.02
 -- Page 2 Child - B.03
 -- Page 2 Child - B.04
- Page 3 - C.01
- Page 4 - D.01

1 个答案:

答案 0 :(得分:0)

您的代码存在许多问题:

  1. 您的查询字符串错误
  2. $ else中的$ count缺少""
  3. 你的代码实际上会做的是根据当前保存的帖子的值来循环每个帖子,所以如果它是父母,所有循环的帖子都将是父母
  4. 您应该检查是否$post->post_parent == 0而不是大于0,如果0作为字符串传递,则可以为真。
  5. 反正:

    function updateNumbers($post) {
        global $wpdb;
    
        // you had your query wrong..the loop was prob empty..
        $querystr = "SELECT * FROM $wpdb->posts WHERE post_status = 'publish' AND post_type = 'page' ";
        $pageposts = $wpdb->get_results($querystr, OBJECT);
    
        if($post->post_parent == 0) {
            //Top Level Page
            $counts = "A"; //string
    
            // Loop over all posts for every save, update, etc..... expensive   
        }else {
            // Loop over all posts for every save, update, etc..... expensive   
        }
    
    
    }
    

    但是你要做的事情已经存在,wp有它的系统来识别等等的孩子。