<?php class data__sequence_formatter extends ChadoFieldFormatter { // The default lable for this field. public static $default_label = 'Sequence'; // The list of field types for which this formatter is appropriate. public static $field_types = array('data__sequence'); /** * @see TripalFieldFormatter::view() */ public function view(&$element, $entity_type, $entity, $langcode, $items, $display) { $content = 'There is no sequence.'; if (count($items) > 0 and $items[0]['value']) { $num_bases = 50; $content = '<pre class="residues-formatter">'; $content .= wordwrap($items[0]['value'], $num_bases, "<br>", TRUE); $content .= '</pre>'; } $element[0] = array( // We create a render array to produce the desired markup, '#type' => 'markup', '#markup' => $content, ); } }