ecmall商品列表页排序的完美解决方案

        $sgrade_mod =& m('sgrade');

        $sgrades    = $sgrade_mod->get_options();

        $conditions = $this->_get_goods_conditions($param);

        $goods_mod  =& m('goods');

        $goods_list = $goods_mod->get_list(array(

            'conditions' => $conditions,

            'order'      => isset($_GET['order']) && isset($orders[$_GET['order']]) ? $_GET['order'] : '',

        $sgrade_mod =& m('sgrade');

        $sgrades    = $sgrade_mod->get_options();

        $conditions = $this->_get_goods_conditions($param);

        $goods_mod  =& m('goods');

        $goods_list = $goods_mod->get_list(array(

            'conditions' => $conditions,

            'order'      => isset($_GET['order']) && isset($orders[$_GET['order']]) ? $_GET['order'] : 'add_time desc',