Implements hook_form_FORM_ID_alter() for field_storage_config_edit_form.

File

core/modules/field_ui/tests/modules/field_ui_test_deprecated/field_ui_test_deprecated.module, line 15
Field UI test module.

Code

function field_ui_test_deprecated_form_field_storage_config_edit_form_alter(&$form, FormStateInterface $form_state) {
  if (!$form_state
    ->getFormObject() instanceof FieldStorageConfigEditForm) {
    throw new \LogicException('field_storage_config_edit_form() expects to get access to the field storage config entity edit form.');
  }
  if (!$form_state
    ->getFormObject()
    ->getEntity() instanceof FieldStorageConfigInterface) {
    throw new \LogicException('field_storage_config_edit_form() expects to get access to the field storage config entity.');
  }
  if (!isset($form['cardinality_container']['cardinality'])) {
    throw new \LogicException('field_storage_config_edit_form() expects to that the cardinality container with the cardinality form element exists.');
  }
  $form['cardinality_container']['hello'] = [
    '#markup' => 'Greetings from the field_storage_config_edit_form() alter.',
  ];
}