更新已登录用户的Post Meta

Question

我已经创建了一个收集信息的表单，我想用它更新一个帖子。我的代码很好用，但是它不是为用户更新一个帖子，而是创建一个新的帖子。不知道我错过了什么，以使当前的帖子更新，而不是创建一个新的帖子。下面是我使用的代码：

function update_role_and_post($record,$ajax_handler)
{
    $form_name = $record->get_form_settings('form_name');
    if ('Confirm Premium Account' !== $form_name) {
        return;
    }
    
$current_user = wp_get_current_user(); 
$current_user->remove_role( 'subscriber' );
$current_user->add_role( 'editor' );
    $form_data = $record->get_formatted_data();
    $update=$form_data["Content"]; 
    
    
    
// EVERYTHING UP TO THIS POINT WORKS
// EVERYTHING BELOW DOES NOT WORK!
    
    
// Assign the ID from the current WP_User object to a var for use below
$user_id = $current_user->ID;

    
$confirm=array( 
    'subscription'=> $subscription  // Wanting to use what is in the form and place it as the value for the upgraded meta-key
);
    
    
// Create array of arguments for our query
$args = array(
    'author' => $user_id,  // defined above
    'post_status' => 'publish',  // ignore deleted/drafted posts
    'fields' => 'ids',  // we only need the IDs
    'post_type'     => 'post',
    'meta_input'      => $confirm
);

// Query for posts by this author
$author_posts = new WP_Query( $args );

// WP_Query object contains lots of info; we only want the posts which will be an array if IDs based on our fields argument above.
$author_post_ids = $author_posts->posts;  // array of IDs only

// Loop through each post by this author
foreach ( $author_post_ids as $post_id ) {
    // On each loop iteration, update the post meta keys here
    update_post_meta( $post_id, $meta_key, $meta_value );
} 
}

Answer 1

欢迎来到WPSE。

需要注意的几个问题：

1. 没有定义$user_id，因此对wp_get_current_user()的调用将空值作为参数传递。

$current_user = wp_get_current_user($user_id);. // $user_id is not defined

1. wp_get_current_user()不接受参数。参见这里的文档：https://developer.wordpress.org/reference/functions/wp_到达_当前_用户/
2. 这一行$current_user->ID;什么也不做。WP_User类中没有ID方法。

您可以将该部分简化如下：

$current_user = wp_get_current_user(); 
$current_user->remove_role( 'subscriber' );
$current_user->add_role( 'editor' );

// Assign the ID from the current WP_User object to a var for use below
$user_id = $current_user->ID;

关于post update和creation，wp_update_post()希望为您正在更新的帖子提供一个ID。您似乎将用户ID传递为无效的$my_post['import_id']。

您是否试图用用户信息更新用户对象或帖子？

EDIT: OP希望更新当前作者的每个帖子的元键/值。

上面的代码解决了用户角色的挑战，下面是一个用于更新特定用户编写的每个帖子的post元的模型。

注意：update_post_meta()需要post ID、meta_key (字段的段塞)和正在更新的每个字段的meta_value。https://developer.wordpress.org/reference/functions/update_帖子_元/

// Create array of arguments for our query
$args = array(
    'author' => $user_id,  // defined above
    'post_status' => 'publish',  // ignore deleted/drafted posts
    'fields' => 'ids'  // we only need the IDs
);

// Query for posts by this author
$author_posts = new WP_Query( $args );

// WP_Query object contains lots of info; we only want the posts which will be an array if IDs based on our fields argument above.
$author_post_ids = $author_posts->posts;  // array of IDs only

// Loop through each post by this author
foreach ( $author_post_ids as $post_id ) {
    // On each loop iteration, update the post meta keys here
    update_post_meta( $post_id, $meta_key, $meta_value );
}   

<#>编辑为OP添加实际的元键和值细节。

function update_role_and_post( $record ) {

    if ( 'Confirm Premium Account' !== $record->get_form_settings( 'form_name' ) ) {
        return;
    }

    // Update current user role to editor
    $current_user = wp_get_current_user(); 
    $current_user->remove_role( 'subscriber' );
    $current_user->add_role( 'editor' );
    
    // Create array of arguments for our query
    $args = array(
        'author' => $current_user->ID, 
        'post_status' => 'publish', 
        'fields' => 'ids' 
    );
    
    // Query for posts by this author
    $author_posts = new WP_Query( $args );
    
    // Parse the post IDs from the rest of the WP_Query object
    $author_post_ids = $author_posts->posts;
    
    // Loop through each post by this author and update to premium
    foreach ( $author_post_ids as $post_id ) {
        update_post_meta( $post_id, 'subscription', 'premium' );
    }
}