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<?php
namespace Drupal\comment\Plugin\views\sort;
use Drupal\views\Plugin\views\sort\SortPluginBase;
/**
* Sort handler for ordering by thread.
*
* @ingroup views_sort_handlers
*
* @ViewsSort("comment_thread")
*/
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') {
$this->query->addOrderBy($this->tableAlias, $this->realField, $this->options['order']);
}
else {
$alias = $this->tableAlias . '_' . $this->realField . 'asc';
//@todo is this secure?
$this->query->addOrderBy(NULL, "SUBSTRING({$this->tableAlias}.{$this->realField}, 1, (LENGTH({$this->tableAlias}.{$this->realField}) - 1))", $this->options['order'], $alias);
}
}
}