Hi all!

I figured I’d post this here in case someone else might find this useful.

As you may know, I am using Piklist to create some custom fields and serving them using the REST API. I would like a way to automagically monitor what Piklist fields are available per content type and include those in my API. This way, I won’t have to manually update the API every time a field is added.

Are there any functions that can monitor fields created using Piklist or a recommended way of doing so?

Here’s how I currently add fields to the API for a custom content type called ‘homepage’:

  add_action('rest_api_init', 'my_rest_api_init');

  function my_rest_api_init()
  {
    // This is where we add the custom fields to the REST API
    // More docs: http://v2.wp-api.org/extending/modifying/
    $meta = array(
      'custom_field_a',
      'custom_field_b',
      'custom_field_c'
    );

    foreach ($meta as $meta_key)
    {
      register_api_field('homepage',
      $meta_key,
        array(
          'get_callback' => 'get_registered_meta',
          'update_callback' => 'update_registered_meta',
          'schema' => null
        )
      );
    }
  }

  function get_registered_meta( $object, $field_name, $request ) {
    return get_post_meta( $object[ 'id' ], $field_name, true );
  }

  function update_registered_meta( $value, $object, $field_name ) {
    if ( ! $value || ! is_string( $value ) ) {
        return;
    }
    return update_post_meta( $object->ID, $field_name, strip_tags( $value ) );
}

Thanks again!
Rachel