/**
* {@inheritdoc}
*/
public static function createFromDataType($type)
{
$definition = parent::createFromDataType($type);
// If nothing else given, default to a list of 'any' items.
$definition->itemDefinition = DataDefinition::create('any');
return $definition;
}
public function index()
{
$this->view->set('clickaction', 'view');
$collection = new EDITransactionLogCollection($this->_templateobject);
$sh = $this->setSearchHandler($collection);
if (isset($this->_data['data_definition_id'])) {
$sh->addConstraint(new COnstraint('data_definition_id', '=', $this->_data['data_definition_id']));
$datadef = new DataDefinition();
$datadef->load($this->_data['data_definition_id']);
$this->view->set('datadef', $datadef);
}
parent::index(new EDITransactionLogCollection($this->_templateobject), $sh);
$sidebar = new SidebarController($this->view);
$sidebar->addList('Actions', array('new' => array('link' => array('modules' => $this->_modules, 'controller' => 'externalsystems', 'action' => 'index'), 'tag' => 'view external systems')));
$this->view->register('sidebar', $sidebar);
$this->view->set('sidebar', $sidebar);
}
/**
* {@inheritdoc}
*/
public function getConstraints()
{
$constraints = parent::getConstraints();
// If this data definition is marked as required for the sake of schema
// definitions, we don't enforce it using the NotNull constraint. Instead
// \Drupal\Core\Field\EntityReferenceItem is validated by the
// 'ValidReference' constraint that operates at the field-item level. This
// constraint takes into consideration that the target_id property can
// be derived from the entity property.
unset($constraints['NotNull']);
return $constraints;
}
/**
* Creates a new data reference definition.
*
* @param string $target_data_type
* The data type of the referenced data.
*
* @return static
*/
public static function create($target_data_type)
{
// This assumes implementations use a "TYPE_reference" naming pattern.
$definition = parent::create($target_data_type . '_reference');
return $definition->setTargetDefinition(\Drupal::typedDataManager()->createDataDefinition($target_data_type));
}
