/** * 保存 body */ static function body($body) { $slug = md5(trim($body)); $cacheId = 'database#comment_body_slug_' . $slug; $one = cache($cacheId); if (!$one) { $one = DB::one('comment_body', array('where' => array('slug' => $slug))); cache($cacheId, $one); } if ($one) { return $one['id']; } DB::insert('comment_body', array('slug' => $slug, 'body' => $body)); return DB::id(); }