/**
* {@inheritdoc}
*/
public function matchAll(LineItemInterface $line_item, array $line_items)
{
$purchased_entity = $line_item->getPurchasedEntity();
if (empty($purchased_entity)) {
// Don't support combining line items without a purchased entity.
return [];
}
$comparison_fields = ['type', 'purchased_entity'];
$event = new LineItemComparisonFieldsEvent($comparison_fields, $line_item);
$this->event_dispatcher->dispatch(CartEvents::LINE_ITEM_COMPARISON_FIELDS, $event);
$comparison_fields = $event->getComparisonFields();
$matched_line_items = [];
/** @var \Drupal\commerce_order\Entity\LineItemInterface $existing_line_item */
foreach ($line_items as $existing_line_item) {
foreach ($comparison_fields as $comparison_field) {
if (!$existing_line_item->hasField($comparison_field) || !$line_item->hasField($comparison_field)) {
// The field is missing on one of the line items.
continue 2;
}
if ($existing_line_item->get($comparison_field)->getValue() !== $line_item->get($comparison_field)->getValue()) {
// Line item doesn't match.
continue 2;
}
}
$matched_line_items[] = $existing_line_item;
}
return $matched_line_items;
}
