Chris@0: /**
Chris@0:  * Implements hook_field_validate().
Chris@0:  */
Chris@0: function {{ machine_name }}_field_validate($entity_type, $entity, $field, $instance, $langcode, $items, &$errors) {
Chris@0:   foreach ($items as $delta => $item) {
Chris@0:     if (!empty($item['value'])) {
Chris@0:       if (!empty($field['settings']['max_length']) && drupal_strlen($item['value']) > $field['settings']['max_length']) {
Chris@0:         $errors[$field['field_name']][$langcode][$delta][] = array(
Chris@0:           'error' => 'text_max_length',
Chris@0:           'message' => t('%name: the value may not be longer than %max characters.', array('%name' => $instance['label'], '%max' => $field['settings']['max_length'])),
Chris@0:         );
Chris@0:       }
Chris@0:     }
Chris@0:   }
Chris@0: }