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Saving data to ACFs using AJAX POST

  • Hello,

    I created a front-end form that allows a user to enter data to create a new flight log entry. I’m using AJAX to create the post. While the post is created and shows the title and content, I can’t get the data to save to the Advanced Custom Fields. I’ve registered the field groups and I’m using the field keys with update_field(). I’m not certain what I’m overlooking. Any help would be greatly appreciated.

    var departure_field = $(“.new-flight-departure”).val();
    var arrival_field = $(“.new-flight-arrival”).val();
    var title = (date + ‘ ‘ + departure_field + ‘ ‘ + arrival_field);
    var content = $(“.new-flight-text”).val();

    beforeSend: (xhr) => {
    xhr.setRequestHeader(‘X-WP-NONCE’, flightData.nonce);
    url: flightData.root_url + ‘/wp-json/wp/v2/flight/’,
    type: ‘POST’,
    data: {
    action: ‘submit_log_entry’,
    title: title,
    departure_field: departure_field, //Advanced Custom Field
    arrival_field: arrival_field, //Advanced Custom Field
    content: content
    success: (response) => {
    alert(‘Post has been saved.’);
    error: (response) => {

    function submit_log_entry() {

    $title = $_POST[‘title’];
    $content = $_POST[‘content’];
    $departure = $_POST[‘departure_field’];
    $arrival = $_POST[‘arrival-field’];

    $post_data = array(
    ‘post_title’ => $title,
    ‘post_content’ => $content,
    ‘post_type’ => ‘post’,
    ‘post_status’ => ‘publish’

    $post_id = wp_insert_post($post_data);

    //Update departure field
    $field_key = ‘field_5ecb28b30812a’;
    update_field($field_key, $departure ,$post_id);

    //Update arrival field
    $field_key = ‘field_5ecc33eb92cf4’;
    update_field($field_key, $arrival ,$post_id);


    add_action( ‘wp_ajax_nopriv_submit_log_entry’, ‘submit_log_entry’ );
    add_action( ‘wp_ajax_submit_log_entry’,’submit_log_entry’ );

  • On first glance, it looks like $arrival = $_POST['arrival-field']; is different than what’s being sent in the data object (arrival_field: arrival_field). One has a hyphen, while the other has an underscore.

    Can you verify that the ACF data is being successfully sent along to the function? By printing or console logging?

  • Thank you for taking the time to look at this. Here’s a snippet from the console log. It looks like the data for the ACF fields is empty.

    _links: Object { self: (1) […], collection: (1) […], about: (1) […], … }

    aircraft: “”

    arrival_field: “”

    content: Object { raw: “Test remarks.”, rendered: “<p>Test remarks.</p>\n”, protected: false, … }

    date: “”

    date_gmt: “2020-09-30T01:29:32”

    departure_field: “”

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