/**
* {@inheritodc}
*/
public function clear(FeedInterface $feed, array &$context)
{
try {
$this->dispatchEvent(FeedsEvents::INIT_CLEAR, new InitEvent($feed));
$this->dispatchEvent(FeedsEvents::CLEAR, new ClearEvent($feed));
} catch (\Exception $exception) {
// Do nothing yet.
}
// Clean up.
$context['finished'] = $feed->progressClearing();
if (isset($exception)) {
$context['finished'] = StateInterface::BATCH_COMPLETE;
}
if ($context['finished'] === StateInterface::BATCH_COMPLETE) {
$feed->finishClear();
$feed->save();
$feed->unlock();
} else {
$feed->saveStates();
}
if (isset($exception)) {
throw $exception;
}
}
/**
* {@inheritdoc}
*/
public function clear(FeedInterface $feed)
{
$state = $feed->getState(StateInterface::CLEAR);
// Build base select statement.
$query = $this->queryFactory->get($this->entityType())->condition('feeds_item.target_id', $feed->id());
// If there is no total, query it.
if (!$state->total) {
$count_query = clone $query;
$state->total = $count_query->count()->execute();
}
// Delete a batch of entities.
$entity_ids = $query->range(0, $this->importer->getLimit())->execute();
if ($entity_ids) {
$this->entityDeleteMultiple($entity_ids);
$state->deleted += count($entity_ids);
$state->progress($state->total, $state->deleted);
} else {
$state->progress($state->total, $state->total);
}
// Report results when done.
if ($feed->progressClearing() == StateInterface::BATCH_COMPLETE) {
if ($state->deleted) {
$message = format_plural($state->deleted, 'Deleted @number @entity from %title.', 'Deleted @number @entities from %title.', array('@number' => $state->deleted, '@entity' => Unicode::strtolower($this->entityLabel()), '@entities' => Unicode::strtolower($this->entityLabelPlural()), '%title' => $feed->label()));
$feed->log('clear', $message, array(), WATCHDOG_INFO);
drupal_set_message($message);
} else {
drupal_set_message($this->t('There are no @entities to delete.', array('@entities' => Unicode::strtolower($this->entityLabelPlural()))));
}
}
}
