ACF Field Type Post Object to only show only top level parent pages from a Custom Post Type

Question

I'm attempting to show only parent pages of a custom post type using Advanced Custom Fields Post Object field. Then I'm using Advanced Forms to show the form on the front-end. The problem is that I can't seem to figure out how show only parent pages from a custom post type.

Currently, it is outputting all posts, pages and custom post types pages on the front-end: !https://i.ibb.co/tXkxFdY/Screen-Shot-2019-04-01-at-2-50-25-PM.png

For reference, here is how my Post Object settings is set up in the ACF Pro plug-in: !https://i.ibb.co/Z6W3cjF/Screen-Shot-2019-04-01-at-2-44-24-PM.png

I tried using the following the ACF Post Object query from: https://www.advancedcustomfields.com/resources/acf-fields-post_object-query/

Using the ACF page "acf/fields/post_object/query" https://www.advancedcustomfields.com/resources/acf-fields-post_object-query/

I tried using the following:

function my_relationship_query( $args, $field, $post_id ) {

    $args = array(
        'post_parent' => $post_id, // updated to use the current $post_id
        'post_type'   => 'mediakit', 
        'numberposts' => -1,
        'post_status' => 'published' 
    );

    return;

}

// filter for every field
add_filter('acf/fields/relationship/query/key=field_5ca24f099f985', 'my_relationship_query', 10, 3);

I was hoping the results on the front-end would show the select showing only parent pages of the custom post type, on the front-end.

The actual results is showing all the posts, pages and all the pages in the custom post type.

Any help on this problem will be greatly appreciated.

TMS Demo Only TMS Demo Only · Accepted Answer · 2019-04-04T15:35:33

It turns out that I can use the ACF query filter to have the parent pages of a custom post type show up. When I go to the field to select my post type, the parents only show up in the Post Object dropdown.

Using this: https://www.advancedcustomfields.com/resources/acf-fields-post_object-query/


add_filter('acf/fields/post_object/query/key=field_0000000000000', 'change_posts_order', 10, 3);

{
function change_posts_order( $args, $field, $post )

    $args['post_parent'] = 0;
    $args['sort_order'] = 'ASC';
    $args['orderby'] = 'title';
    $args['order'] = 'ASC';
    $args['post_status'] = 'publish';

    return $args;
}

ACF Field Type Post Object to only show only top level parent pages from a Custom Post Type

1 Answers