В файле catalog/controller/product/category.php находим следующие строчки:
if (isset($this->request->get['sort'])) {
$sort = $this->request->get['sort'];
} else {
$sort = 'p.sort_order';
}
if (isset($this->request->get['order'])) {
$order = $this->request->get['order'];
} else {
$order = 'ASC';
}
И меняем их на:
if (isset($this->request->get['sort'])) {
$sort = $this->request->get['sort'];
} else {
$sort = 'p.date_added';
}
if (isset($this->request->get['order'])) {
$order = $this->request->get['order'];
} else {
$order = 'DESC';
}
Далее находим:
$this->data['sorts'][] = array(
'text' => $this->language->get('text_default'),
'value' => 'p.sort_order-ASC',
'href' => $this->url->link('product/category', 'path=' . $this->request->get['path'] . '&sort=p.sort_order&order=ASC' . $url)
);
И меняем на:
$this->data['sorts'][] = array(
'text' => $this->language->get('text_date_desc'),
'value' => 'p.date_added-DESC',
'href' => $this->url->link('product/category', 'path=' . $this->request->get['path'] . '&sort=p.date_added&order=DESC' . $url)
);
В файле catalog/language/russian/product/category.php добавляем строку:
$_['text_date_desc'] = 'По дате поступления';