update_callback 发送时没有调用正确的函数 post

Question

到目前为止，这是我的代码：

add_action( 'rest_api_init', 'rest_api_user_meta_fields' );

function rest_api_user_meta_fields() {
    // register_rest_field ( 'name-of-post-type', 'name-of-field-to-return', array-of-callbacks-and-schema() )
    register_rest_field( 'user', 'grad', array(
           'get_callback'       => 'get_user_acf_fields',
           'update_callback'    => 'update_user_acf_fields',
           'schema'             => null,
        )
    );
}

function get_user_acf_fields( $object ) {
    //get the id of the post object array
    $grad = get_field('grad', 'user_32');
    error_log($object);
    return $grad;
}

function update_user_acf_fields( $value, $object, $field_name ) {
    error_log($value);
    error_log($field_name);
    error_log($object);
}

现在，我希望在向 /users/ 端点发送 GET 请求时执行 get_user_acf_fields 函数，并且在发送 update_user_acf_fields 时执行运行 POST 请求到所述端点。在这两种情况下，它都执行前一个 get_user_acf_fields 函数。我在这里做错了什么？

Answer 1

$_GET、$_POST 和 UPDATE 与其余部分不同 API。由于更新不一定是语言的构造，它只是意味着当一个请求通常是一个 $_POST 带有一个特定的 "Update" header 时，它应该调用你的更新函数。

Answer 2

也许您没有包含正确的 nonce？

For developers making manual Ajax requests, the nonce will need to be passed with each request. The API uses nonces with the action set to wp_rest. These can then be passed to the API via the _wpnonce data parameter (either POST data or in the query for GET requests), or via the X-WP-Nonce header. If no nonce is provided the API will set the current user to 0, turning the request into an unauthenticated request, even if you’re logged into WordPress.

— 阅读更多关于 https://developer.wordpress.org/rest-api/using-the-rest-api/authentication/

这是我在 WordPress 4.9.5 上使用高级自定义字段 4.4.12 修改和测试的代码。

add_action( 'rest_api_init', 'rest_api_user_meta_fields' );

function rest_api_user_meta_fields() {
    // register_rest_field ( 'name-of-post-type', 'name-of-field-to-return', array-of-callbacks-and-schema() )
    register_rest_field( 'user', 'grad', array(
           'get_callback'       => 'get_user_acf_fields',
           'update_callback'    => 'update_user_acf_fields',
           'schema'             => [
             'description' => 'User grad blah',
             'type'        => 'string',
           ],
        )
    );
}

// $user_arr is an `array` of the user data; e.g. `id`, `username`, and `name`.
// $field_name is the name of the ACF custom field; i.e. in this case, it's `grad`.
function get_user_acf_fields( $user_arr, $field_name ) {
    // Get the value of the 'grad' custom field.
    $grad = get_field($field_name, 'user_' . $user_arr['id']);
    error_log(var_export( $user_arr, true ));
    error_log($field_name);
    //return $grad;
    return $field_name . ';' . $grad . ';' . $user_arr['id'];
}

// $field_value is the value of the ACF custom field; i.e. in this case, it's `grad`.
// $user_obj is an `object` of the user data; e.g. `id`, `username`, and `name`.
function update_user_acf_fields( $field_value, $user_obj, $field_name ) {
    // Get the value of the 'grad' custom field.
    $grad = get_field($field_name, 'user_' . $user_obj->ID);

    if ( $grad !== $field_value ) {
      update_field( $field_name, $field_value, 'user_' . $user_obj->ID );
    }

    error_log($field_value);
    error_log($field_name);
    error_log(var_export( $user_obj, true ));

    return true;
}

和here's the HTML and JS/AJAX我用来测试上面的PHP代码。

update_callback 发送时没有调用正确的函数 post

update_callback not calling proper function when sending post

wordpress

wordpress-rest-api