Вот тут:
Делаем так:
$this->db->query("INSERT INTO " . DB_PREFIX . "banner_image SET banner_id = '" . (int)$banner_id . "', language_id = '" . (int)$language_id . "', title = '" . $this->db->escape($banner_image['title']) . "', link = '" . $this->db->escape($banner_image['link']) . "', image = '" . $this->db->escape($banner_image['image']) . "', sort_order = '" . (int)$banner_image['sort_order'] . "', desc = '" . $this->db->escape($banner_image['desc']) . "'");
В запрос добавлено:
, desc = '" . $this->db->escape($banner_image['desc']) . "'
Вот тут:
Делаем так:
$banner_image_data[$banner_image['language_id']][] = array(
'title' => $banner_image['title'],
'link' => $banner_image['link'],
'image' => $banner_image['image'],
'desc' => $banner_image['desc'],
'sort_order' => $banner_image['sort_order']
);
Правки в модели готовы.
Останется поправить контроллер и вьюшку.