public function WorkflowTransitionForm::getFormId in Workflow 8

Returns a unique string identifying the form.

The returned ID should be a unique string that can be a valid PHP function name, since it's used in hook implementation names such as hook_form_FORM_ID_alter().

Return value

string The unique string identifying the form.

Overrides EntityForm::getFormId

File

src/Form/WorkflowTransitionForm.php, line 23

Class

WorkflowTransitionForm

Provides a Transition Form to be used in the Workflow Widget.

Namespace

Drupal\workflow\Form

Code

public function getFormId() {

  // We need a proprietary Form ID, to identify the unique forms
  // when multiple fields or entities are shown on 1 page.
  // Test this f.i. by checking the'scheduled' box. It will not unfold.
  // $form_id = parent::getFormId();

  /** @var \Drupal\workflow\Entity\WorkflowTransitionInterface $transition */
  $transition = $this->entity;
  $field_name = $transition
    ->getFieldName();

  // Entity may be empty on VBO bulk form.
  // $entity = $transition->getTargetEntity();
  // Compose Form Id from string + Entity Id + Field name.
  // Field ID contains entity_type, bundle, field_name.
  // The Form Id is unique, to allow for multiple forms per page.
  // $workflow_type_id = $transition->getWorkflowId();
  // Field name contains implicit entity_type & bundle (since 1 field per entity)
  // $entity_type = $transition->getTargetEntityTypeId();
  // $entity_id = $transition->getTargetEntityId();;
  $suffix = 'form';

  // Emulate nodeForm convention.
  if ($transition
    ->id()) {
    $suffix = 'edit_form';
  }
  $form_id = implode('_', [
    'workflow_transition',
    $transition
      ->getTargetEntityTypeId(),
    $transition
      ->getTargetEntityId(),
    $field_name,
    $suffix,
  ]);
  $form_id = Html::getUniqueId($form_id);
  return $form_id;
}