www.aleph1.co.uk Git - yaffs-website/blob - web/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldFormatter/TestFieldApplicableFormatter.php

   1 <?php
   2
   3 namespace Drupal\field_test\Plugin\Field\FieldFormatter;
   4
   5 use Drupal\Core\Field\FieldDefinitionInterface;
   6 use Drupal\Core\Field\FieldItemListInterface;
   7 use Drupal\Core\Field\FormatterBase;
   8
   9 /**
  10  * Plugin implementation of the 'field_test_applicable' formatter.
  11  *
  12  * It is applicable to test_field fields unless their name is 'deny_applicable'.
  13  *
  14  * @FieldFormatter(
  15  *   id = "field_test_applicable",
  16  *   label = @Translation("Applicable"),
  17  *   description = @Translation("Applicable formatter"),
  18  *   field_types = {
  19  *     "test_field"
  20  *   },
  21  *   weight = 15,
  22  * )
  23  */
  24 class TestFieldApplicableFormatter extends FormatterBase {
  25
  26   /**
  27    * {@inheritdoc}
  28    */
  29   public static function isApplicable(FieldDefinitionInterface $field_definition) {
  30     return $field_definition->getName() != 'deny_applicable';
  31   }
  32
  33   /**
  34    * {@inheritdoc}
  35    */
  36   public function viewElements(FieldItemListInterface $items, $langcode) {
  37     return ['#markup' => 'Nothing to see here'];
  38   }
  39
  40 }