我想删除所有与分类法相关的帖子。
例如，每当我从后端删除分类法时，应该删除该分类法的所有帖子。
我尝试了以下代码，钩名为delete_term_taxonomy
<?php
add_action(\'delete_term_taxonomy\',\'wp_custom_delete_taxonomy\');
function wp_custom_delete_taxonomy($tt_id) {
global $wpdb; // add action here
$get_term_id = $wpdb->get_results("SELECT meta_value, user_id
FROM `wp_usermeta`
WHERE `meta_key`=\'term_id\'
AND `meta_value` =".$tt_id."");
$post_metattid = $get_term_id[0]->meta_value;
$user_id = $get_term_id[0]->user_id;
$get_post_id = get_user_meta($user_id,\'post_id\',true);
$delete_all_model = $wpdb->query("DELETE p,pm,tr,d,e
FROM wp_posts as p
LEFT JOIN wp_postmeta as pm ON p.id=pm.post_id
LEFT JOIN wp_term_relationships as tr ON tr.object_id=pm.post_id
LEFT JOIN wp_term_taxonomy d ON d.term_taxonomy_id = tr.term_taxonomy_id
LEFT JOIN wp_terms e ON e.term_id = d.term_id
WHERE tr.term_taxonomy_id=".$tt_id."");
}
?>
这不是删除分类法的帖子，任何人都知道这一点。
最合适的回答,由SO网友:CodeMascot 整理而成
首先，我们需要找到与我们的分类术语相关的帖子。然后，我们将通过运行foreach 环尝试以下代码。我希望这对你有用-
add_action(\'pre_delete_term\', \'the_dramatist_delete_posts_on_taxonomy_delete\', 1, 1 );
function the_dramatist_delete_posts_on_taxonomy_delete( $term ) {
$args = array(
\'post_type\' => \'post\', // post_type
\'tax_query\' => array(
array(
\'taxonomy\' => \'post_tag\', // taxonomy_name
\'field\' => \'id\',
\'terms\' => $term
)
)
);
$posts = get_posts($args);
foreach ( $posts as $post ){
wp_delete_post( $post->ID, true );
}
}
