/**
* {@inheritdoc}
*/
public function preRender($result)
{
// Preload each entity used in this view from the cache. This provides all
// the entity values relatively cheaply, and we don't need to do it
// repeatedly for the same entity if there are multiple results for one
// entity.
$ids = [];
/** @var $row \Drupal\views\ResultRow */
foreach ($result as $row) {
// Use the entity id as the key so we don't create more than one value per
// entity.
$entity = $row->_entity;
// Node revisions need special loading.
if (isset($this->view->getBaseTables()['node_revision'])) {
$this->entities[$entity->id()] = \Drupal::entityManager()->getStorage('node')->loadRevision($entity->id());
} else {
$ids[$entity->id()] = $entity->id();
}
}
$base_tables = $this->view->getBaseTables();
$base_table = key($base_tables);
$table_data = Views::viewsData()->get($base_table);
$this->entityType = $table_data['table']['entity type'];
if (!empty($ids)) {
$this->entities = \Drupal::entityManager()->getStorage($this->entityType)->loadMultiple($ids);
}
// Identify the date argument and fields that apply to this view. Preload
// the Date Views field info for each field, keyed by the field name, so we
// know how to retrieve field values from the cached node.
// @todo don't hardcode $date_fields, use viewsData() or viewsDataHelper()
// $data = date_views_fields($this->view->base_table);
// $data = $data['name'];
$data = CalendarHelper::dateViewFields($this->entityType);
// $data['name'] = 'node_field_data.created_year';
$date_fields = [];
/** @var $handler \Drupal\views\Plugin\views\argument\Formula */
foreach ($this->view->getDisplay()->getHandlers('argument') as $handler) {
if ($handler instanceof Date) {
// Strip "_calendar" from the field name.
$fieldName = $handler->realField;
if (!empty($data['alias'][$handler->table . '_' . $fieldName])) {
$date_fields[$fieldName] = $data['alias'][$handler->table . '_' . $fieldName];
$this->dateFields = $date_fields;
}
$this->dateArgument = $handler;
}
}
//
// // Get the language for this view.
// $this->language = $this->display->handler->get_option('field_language');
// $substitutions = views_views_query_substitutions($this->view);
// if (array_key_exists($this->language, $substitutions)) {
// $this->language = $substitutions[$this->language];
// }
}
