<?php class data__accession_formatter extends ChadoFieldFormatter { // The default lable for this field. public static $default_label = 'Site Accession'; // The list of field types for which this formatter is appropriate. public static $field_types = array('data__accession'); /** * @see TripalFieldFormatter::view() */ public function view(&$element, $entity_type, $entity, $langcode, $items, $display) { $content = 'N/A'; if ($items[0]['value']) { $content = $items[0]['value']; } $element[0] = array( // We create a render array to produce the desired markup, '#type' => 'markup', '#markup' => $content, ); } }