/**
* Delete multiple records
*
* No service requests are run when this method is called.
* Use {@see Google\Cloud\Datastore\Transaction::commit()} to commit changes.
*
* Example:
* ```
* $keys = [
* $datastore->key('Person', 'Bob'),
* $datastore->key('Person', 'John')
* ];
*
* $transaction->deleteBatch($keys);
* $transaction->commit();
* ```
*
* @param Key[] $keys The keys to delete.
* @return Transaction
*/
public function deleteBatch(array $keys)
{
$this->operation->mutate('delete', $keys, Key::class);
return $this;
}
/**
* Delete multiple entities
*
* Deletion by this method is non-transactional. If you need transaction
* support, use {@see Google\Cloud\Datastore\Transaction::deleteBatch()}.
*
* Example:
* ```
* $keys = [
* $datastore->key('Person', 'Bob'),
* $datastore->key('Person', 'John')
* ];
*
* $datastore->deleteBatch($keys);
* ```
*
* @param Key[] $keys The identifiers to delete.
* @param array $options [optional] {
* Configuration options
*
* @type string $baseVersion Provides concurrency control. The version
* of the entity that this mutation is being applied to. If this
* does not match the current version on the server, the mutation
* conflicts.
* }
* @return array [Response Body](https://cloud.google.com/datastore/reference/rest/v1/projects/commit#response-body)
*/
public function deleteBatch(array $keys, array $options = [])
{
$options += ['baseVersion' => null];
$this->operation->mutate('delete', $keys, Key::class, $options['baseVersion']);
return $this->operation->commit($options);
}
