Use action or filter to modify listing before save

Hello Adam,

‘geodir_listinginfo_request’ filters the data that need be saved in listing detail table. See desc https://github.com/GeoDirectory/geodirectory/blob/master/geodirectory-functions/post_functions.php#L601

You code shows that you want to filter tags data that saved in detail table. But tags are also a term taxonomy of the listing, so you have to set tags in term taxonomy as well.

Check following code snippet

function gd_override_tags( $listing_info, $post_id ) {
    if ( !isset( $listing_info['post_tags'] ) ) {
        return $listing_info;
    }
    
    $post_tags_array = array( 'my tag', 'my another tag' ); // Your tags here.
    
    $listing_info['post_tags'] = implode( ",", $post_tags_array );

    if ($post_id > 0) {
        $tag_taxonomy = get_post_type( $post_id ) . '_tags';
        
        // Set listing tag terms
        wp_set_object_terms( $post_id, $post_tags_array, $tag_taxonomy ); // Ex: $post_tags_array => array('test', 'mytest'), $tag_taxonomy => 'gd_place_tags'
    }
    
    return $listing_info;
}
add_filter( 'geodir_listinginfo_request', 'gd_override_tags', 10, 2 );

Thanks,
Kiran