Definition of Drupal\comment\Plugin\views\sort\Thread.
<?php /** * @file * Definition of Drupal\comment\Plugin\views\sort\Thread. */ namespace Drupal\comment\Plugin\views\sort; use Drupal\views\Plugin\views\sort\SortPluginBase; use Drupal\Core\Annotation\Plugin; /** * Sort handler for ordering by thread. * * @ingroup views_sort_handlers * * @Plugin( * id = "comment_thread", * module = "comment" * ) */ class Thread extends SortPluginBase { public function query() { $this ->ensureMyTable(); //Read comment_render() in comment.module for an explanation of the //thinking behind this sort. if ($this->options['order'] == 'DESC') { $this->query ->add_orderby($this->tableAlias, $this->realField, $this->options['order']); } else { $alias = $this->tableAlias . '_' . $this->realField . 'asc'; //@todo is this secure? $this->query ->add_orderby(NULL, "SUBSTRING({$this->tableAlias}.{$this->realField}, 1, (LENGTH({$this->tableAlias}.{$this->realField}) - 1))", $this->options['order'], $alias); } } }