有人可以告诉我我在这里做错了什么吗?我有一个 ajax 函数,每隔几秒运行一次,它基本上检查 2 个数据库表,如果它们不匹配,则更新其中一个数据库表以匹配另一个数据库表,但由于某种原因,它不会更新数据库表。如何编辑函数才能实现此目的?
以下是涉及的功能:
function tb_update_old_followers($user_id) {
$followers = tb_get_follower_count($user_id);
$old_followers = tb_get_old_follower_count($user_id);
$response['new_new_followers'] = $followers;
$response['old_new_followers'] = $old_followers;
$response = json_encode( $response );
echo $response;
update_user_meta( $user_id, '_tb_old_followed_by_count', $followers + 1);
die();
}
add_action('wp_ajax_tb_update_old_followers' , 'tb_update_old_followers');
function tb_get_follower_count( $user_id = null ) {
if ( empty( $user_id ) ) {
$user_id = get_current_user_id();
}
$followed_count = get_user_meta( $user_id, '_tb_followed_by_count', true );
$count = 0;
if ( $followed_count ) {
$count = $followed_count;
}
return (int) apply_filters( 'tb_get_follower_count', $count, $user_id );
}
function tb_get_old_follower_count( $user_id = null ) {
if ( empty( $user_id ) ) {
$user_id = get_current_user_id();
}
$old_followed_count = get_user_meta( $user_id, '_tb_old_followed_by_count', true );
$old_count = 0;
if ( $old_followed_count ) {
$old_count = $old_followed_count;
}
return (int) apply_filters( 'tb_get_old_follower_count', $old_count, $user_id );
}
任何帮助将不胜感激!
原因很简单。 您尚未在 tb_update_old_followers() 函数中定义 user_id 。只要去做就会有效果。
function tb_update_old_followers() {
$user_id=get_current_user_id();
$followers = tb_get_follower_count($user_id);
$old_followers = tb_get_old_follower_count($user_id);
$response['new_new_followers'] = $followers;
$response['old_new_followers'] = $old_followers;
$response = json_encode( $response );
echo $response;
update_user_meta( $user_id, '_tb_old_followed_by_count', $followers + 1);
die();
}