Topic Tag: Setting up custom fields

Problem:

The customer asked how the 'wpt_field_options' filter can be used to dynamically generate a long and alphabetically ordered list of options for a select type field.

Solution:

Shared some details and a code snippet example to show how this filter can be used to generate options from a custom post type:

add_filter( 'wpt_field_options', 'func_to_dynamically_populate_shop_locations', 10, 3);
function func_to_dynamically_populate_shop_locations( $options, $title, $type ){
    switch( $title ){
        case 'Book Shop Locations':
            $options = array();
   
            // add first empty value
            $options[] = array('#value' => '', '#title' => '---');
   
            // get all tmna-location post items
            $args = array( 'post_type' => 'shop-location', 'posts_per_page' => -1, 'post_status' => 'publish','orderby' => 'title' );
   
            $results = get_posts( $args );
            if ( $results ) {
                foreach ( $results as $post ) {
                    $options[] = array('#value' => $post->ID, '#title' => $post->post_title);
                }
            }
   
        break;
    }
    return $options;
}

Relevant Documentation:

https://toolset.com/documentation/programmer-reference/types-api-filters/#wpt_field_options

Problem:
The user would like to duplicate a custom field.

Solution:
Toolset does not have a feature of copying or duplicating a field. And because the field already exists on the field group it won't be offered on the list of already created fields.

The 2nd field needs to be created manually. Or try this workaround:
1. Rename the existing field and its slug. Check this screenshot http://prntscr.com/20ly8n1
2. Save the field group. This will remove the initial field from the group.
3. Add a new field, and choose the initial field for the list of already created fields.

Problem:

The customer reported that a custom field group was missing from the post edit screen.

Solution:

When I checked, the post edit screen, the field group was showing, as expected.

Suggested to make sure that the field group's option was checked in the "Screen Options" available at the top right corner.

Relevant Documentation:

n/a