Dynamic Default Value – Get terms by taxonomy

This code combines wp_get_post_terms with add_shortcode to create a default value. This way you can pass data from the post with the form simply by defining the taxonomy.


/**
* Custom shortcode to get terms for the Formidable plugin
*/
function ALC_post_terms_by_taxonomy( $atts ) {
global $post;
$taxonomyTerms = wp_get_post_terms( $post->ID, $atts['taxonomy'], ‘orderby=name&hide_empty=0′ );
$term_array = array();
foreach ($taxonomyTerms as $taxonomyTerm) {
$term_array[] = $taxonomyTerm->name;
}
return implode( ‘, ‘, $term_array );
}
add_shortcode(‘get_terms_by_taxonomy’, ‘ALC_post_terms_by_taxonomy’);

And you can add them in your form by using this shortcode:
[get_terms_by_taxonomy taxonomy="taxonomy-name"]