/** * 获得指定分类下的商品 * * @access  public * @param   integer     $cat_id     分类ID * @param   integer     $num        数量 * @param   string      $from       来自web/wap的调用 * @param   string      $order_rule 指定商品排序规则 * @return  array */function assign_cat_goods($cat_id, $num = 0, $from = 'web', $order_rule = ''){    $children = get_children($cat_id);   $sql = 'SELECT g.goods_id, g.goods_name, g.market_price, g.shop_price AS org_price, ' .                "IFNULL(mp.user_price, g.shop_price * '$_SESSION[discount]') AS shop_price, ".               'g.promote_price, promote_start_date, promote_end_date, g.goods_brief, g.goods_thumb, g.goods_img ' .            "FROM " . $GLOBALS['ecs']->table('goods') . ' AS g '.            "LEFT JOIN " . $GLOBALS['ecs']->table('member_price') . " AS mp ".                    "ON mp.goods_id = g.goods_id AND mp.user_rank = '$_SESSION[user_rank]' ".            'WHERE g.is_on_sale = 1 AND g.is_alone_sale = 1 AND '.                'g.is_delete = 0 AND (' . $children . 'OR ' . get_extension_goods($children) . ') ';    $order_rule = empty($order_rule) ? 'ORDER BY g.sort_order, g.goods_id DESC' : $order_rule;    $sql .= $order_rule;    if ($num > 0)    {        $sql .= ' LIMIT ' . $num;    }    $res = $GLOBALS['db']->getAll($sql);    $goods = array();    foreach ($res AS $idx => $row)    {        if ($row['promote_price'] > 0)        {            $promote_price = bargain_price($row['promote_price'], $row['promote_start_date'], $row['promote_end_date']);            $goods[$idx]['promote_price'] = $promote_price > 0 ? price_format($promote_price) : '';        }        else        {            $goods[$idx]['promote_price'] = '';        }        $goods[$idx]['id']           = $row['goods_id'];        $goods[$idx]['name']         = $row['goods_name'];        $goods[$idx]['brief']        = $row['goods_brief'];        $goods[$idx]['market_price'] = price_format($row['market_price']);        $goods[$idx]['short_name']   = $GLOBALS['_CFG']['goods_name_length'] > 0 ?                                        sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];        $goods[$idx]['shop_price']   = price_format($row['shop_price']);        $goods[$idx]['thumb']        = get_image_path($row['goods_id'], $row['goods_thumb'], true);        $goods[$idx]['goods_img']    = get_image_path($row['goods_id'], $row['goods_img']);        $goods[$idx]['url']          = build_uri('goods', array('gid' => $row['goods_id']), $row['goods_name']);    }    if ($from == 'web')    {        $GLOBALS['smarty']->assign('cat_goods_' . $cat_id, $goods);    }    elseif ($from == 'wap')    {        $cat['goods'] = $goods;    }    /* 分类信息 */    $sql = 'SELECT cat_name FROM ' . $GLOBALS['ecs']->table('category') . " WHERE cat_id = '$cat_id'";    $cat['name'] = $GLOBALS['db']->getOne($sql);    $cat['url']  = build_uri('category', array('cid' => $cat_id), $cat['name']);    $cat['id']   = $cat_id;	$cat['cat_id'] = get_child_tree($cat_id);//增加子类别调用 by Bragg    return $cat;}