public function EntityReferenceFormatterBase::prepareView in Drupal 9
Same name and namespace in other branches
- 8 core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceFormatterBase.php \Drupal\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceFormatterBase::prepareView()
- 10 core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceFormatterBase.php \Drupal\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceFormatterBase::prepareView()
Loads the entities referenced in that field across all the entities being viewed.
Overrides FormatterBase::prepareView
File
- core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldFormatter/ EntityReferenceFormatterBase.php, line 119
Class
- EntityReferenceFormatterBase
- Parent plugin for entity reference formatters.
Namespace
Drupal\Core\Field\Plugin\Field\FieldFormatterCode
public function prepareView(array $entities_items) {
// Collect entity IDs to load. For performance, we want to use a single
// "multiple entity load" to load all the entities for the multiple
// "entity reference item lists" being displayed. We thus cannot use
// \Drupal\Core\Field\EntityReferenceFieldItemList::referencedEntities().
$ids = [];
foreach ($entities_items as $items) {
foreach ($items as $item) {
// To avoid trying to reload non-existent entities in
// getEntitiesToView(), explicitly mark the items where $item->entity
// contains a valid entity ready for display. All items are initialized
// at FALSE.
$item->_loaded = FALSE;
if ($this
->needsEntityLoad($item)) {
$ids[] = $item->target_id;
}
}
}
if ($ids) {
$target_type = $this
->getFieldSetting('target_type');
$target_entities = \Drupal::entityTypeManager()
->getStorage($target_type)
->loadMultiple($ids);
}
// For each item, pre-populate the loaded entity in $item->entity, and set
// the 'loaded' flag.
foreach ($entities_items as $items) {
foreach ($items as $item) {
if (isset($target_entities[$item->target_id])) {
$item->entity = $target_entities[$item->target_id];
$item->_loaded = TRUE;
}
elseif ($item
->hasNewEntity()) {
$item->_loaded = TRUE;
}
}
}
}