Deprecation Error Solutions

• drupal_set_message

  • \Drupal::service('messenger')->addMessage(....) is a replacement for drupal_set_message in .module files, but in classes, the messenger service should be injected.
  • For any form class that inherits FormBase (or any other class that inherits MessengerTrait), replace drupal_set_message with $this->messenger->addMessage
  • Use method addError for drupal_set_message(..., ‘error’), addWarning for drupal_set_message(..., ‘warning’), etc. See the API docs

• Call to deprecated function entity_view().

  • Use the entity type manager instead. See https://www.drupal.org/node/3033656 for details.

    • Before

      $build = entity_view($node, 'teaser')
      

    • After

      $builder = \Drupal::entityTypeManager()->getViewBuilder('node'); 
      $build = $builder->view($node, 'teaser');
      

• Call to deprecated function entity_get_display().

  • Use the entity type manager instead. Refer to https://git.drupalcode.org/project/drupal/blob/8.8.x/core/includes/entity.inc#L443 for details.

• Call to deprecated function entity_get_form_display().

  • Use the entity type manager instead. Refer to https://git.drupalcode.org/project/drupal/blob/8.8.x/core/includes/entity.inc#L523 for details.

• Call to deprecated method [METHOD NAME] of class Drupal\KernelTests\KernelTestBase.

  • Refer to https://git.drupalcode.org/project/drupal/blob/8.8.x/core/tests/Drupal/KernelTests/AssertLegacyTrait.php for the correct method to use. For example, use assertEquals instead of assertEqual.

• Call to method [METHOD NAME] of deprecated class Drupal\Tests\BrowserTestBase.

  • Refer to https://git.drupalcode.org/project/drupal/blob/8.8.x/core/tests/Drupal/FunctionalTests/AssertLegacyTrait.php for the correct method to use. For example, use elementExists instead of assertElementPresent.

• Class [CLASS NAME] not found and could not be autoloaded.

  • @todo

• Usage of deprecated trait [CLASS NAME] in class [CLASS NAME]

  • @todo