aleph1.co.uk Git - yaffs-website/blob - web/core/modules/block/tests/modules/block_test/src/Plugin/Block/TestSettingsValidationBlock.php

   1 <?php
   2
   3 namespace Drupal\block_test\Plugin\Block;
   4
   5 use Drupal\Core\Block\BlockBase;
   6 use Drupal\Core\Form\FormStateInterface;
   7
   8 /**
   9  * Provides a test settings validation block.
  10  *
  11  * @Block(
  12  *  id = "test_settings_validation",
  13  *  admin_label = @Translation("Test settings validation block"),
  14  * )
  15  */
  16 class TestSettingsValidationBlock extends BlockBase {
  17
  18   /**
  19    * {@inheritdoc}
  20    */
  21   public function blockForm($form, FormStateInterface $form_state) {
  22     return ['digits' => ['#type' => 'textfield']] + $form;
  23   }
  24
  25   /**
  26    * {@inheritdoc}
  27    */
  28   public function blockValidate($form, FormStateInterface $form_state) {
  29     if (!ctype_digit($form_state->getValue('digits'))) {
  30       $form_state->setErrorByName('digits', $this->t('Only digits are allowed'));
  31     }
  32   }
  33
  34   /**
  35    * {@inheritdoc}
  36    */
  37   public function build() {
  38     return ['#markup' => 'foo'];
  39   }
  40
  41 }