Reply To: acf_add_local_field saving but not displaying in post

• iamhexcoder

• July 28, 2016 at 6:28 am

This code generates ‘default’ fields (ones that appear on every post regardless of how many ‘sibling’ posts there are). The resulting fields in this code will return in a get_fields() dump:

function Add_ACF_Location_Fields() {
    acf_add_local_field_group(
        array(
            'key' => 'group_1234',
            'title' => 'Location Settings',
            'fields' => array(
                array (
                    'key' => 'field_1',
                    'label' => 'Room',
                    'name' => 'location_compartment_value',
                    'type' => 'text',
                ),
            ),
            'location' => array (
                array (
                    array (
                        'param' => 'post_type',
                        'operator' => '==',
                        'value' => 'locations',
                    ),
                ),
            ),
        )
    );
}

And then this code generates ‘sibling’ fields – one set of fields for each ‘sibling’ post. The resulting fields in this code do not return in a get_fields() dump but do save properly when a post is updated:

function Location_Specific_Fields() {
    /**
     * Return if trash
     */
    if( isset( $_GET['post_status'] ) ){
        if( $_GET['post_status'] === 'trash' ) {
            return;
        }
    }

    /**
     * Get the ID of the post being editted
     */
    global $post;

    if( isset( $post->ID ) ) {
        $edit_ID = $post->ID;
    } elseif( isset( $_GET['post'] ) ) {
        $edit_ID = $_GET['post'];
    } elseif ( isset( $_POST['post_ID'] ) ) {
        $edit_ID = $_POST['post_ID'];
    } else {
        return;
    }
    
    // Blank array to hold location field arrays
    $fields = [];

    // Get all Locations
    $args = array(
        'post_type' => 'locations',
        'posts_per_page' => '800',
        'order' => 'menu_order',
        'order' => 'ASC'
    );
    $locs = new WP_Query($args);

    // Create fields for each location
    if( $locs->have_posts() ) :
        while( $locs->have_posts() ) : $locs->the_post();
            $cur_id = strval( get_the_id() );

            // Do not add fields for current post
            if( $cur_id === $post_id ) {
                continue;
            }

            // Unique ID using ids of current post and target post
            $field_end_string = $post_id . $cur_id;

            // Showing just a text field here for sample purposes, but there 
            // are other fields that use the same logic.
            // *KEYS ARE UNIQUE from field to field but do not change*
            $fields[] = array (
                'key' => 'field_foo_' . $field_end_string,
                'label' => 'Foo',
                'name' => 'foo_' . $field_end_string,
                'type' => 'text',
                'parent' => 'group_1234',
            );

            // Example Repeater Field
            $fields[] = array (
                'key' => 'field_bar_' . $field_end_string,
                'label' => 'Bar',
                'name' => 'bar_' . $field_end_string,
                'type' => 'repeater',
                'parent' => 'group_1234',
                'instructions' => '',
                'required' => 0,
                'conditional_logic' => 0,
                'wrapper' => array (
                    'width' => '',
                    'class' => '',
                    'id' => '',
                ),
                'collapsed' => '',
                'min' => 0,
                'max' => '',
                'layout' => 'row',
                'button_label' => 'Add Step'
            );

            // Example Repeater Sub Field
            // Directions SubField: Step
            $fields[] = array (
                'key' => 'field_bar_step_' . $field_end_string,
                'label' => 'Step',
                'name' => 'step',
                'type' => 'text',
                'parent' => 'field_bar_' . $field_end_string,
                'instructions' => '',
                'required' => 0,
                'conditional_logic' => 0,
                'wrapper' => array (
                    'width' => '',
                    'class' => '',
                    'id' => '',
                ),
                'default_value' => '',
                'placeholder' => '',
                'prepend' => '',
                'append' => '',
                'maxlength' => '',
                'readonly' => 0,
                'disabled' => 0,
            );

        endwhile;
    endif;

    // Iterate through $fields array, add each child array as local field.
    foreach ($fields as $field) {
        acf_add_local_field($field);
    }
}

Both functions are called via add_action( 'acf/init', funcName ).

If anything needs clarity, please let me know!