分类下热卖

function get_category_recommend_goods($type = '', $cats = '', $brand = 0, $min =0,  $max = 0, $ext='')
{
    $brand_where = ($brand > 0) ? " AND g.brand_id = '$brand'" : '';

    $price_where = ($min > 0) ? " AND g.shop_price >= $min " : '';
    $price_where .= ($max > 0) ? " AND g.shop_price <= $max " : '';

    $sql =  'SELECT g.goods_id,g.cat_id,c.parent_id,g.goods_name, g.goods_name_style, g.market_price, g.shop_price AS org_price, g.promote_price,  ' .
                "IFNULL(mp.user_price, g.shop_price * '$_SESSION[discount]') AS shop_price, ".
                'promote_start_date, promote_end_date, g.goods_brief, g.goods_thumb, goods_img, b.brand_name ' .
            'FROM ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .
            'LEFT JOIN ' . $GLOBALS['ecs']->table('brand') . ' AS b ON b.brand_id = g.brand_id ' .
			'LEFT JOIN ' . $GLOBALS['ecs']->table('category') . ' AS c ON c.cat_id = g.cat_id ' .
            "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 ' . $brand_where . $price_where . $ext;
    $num = 0;
    $type2lib = array('best'=>'recommend_best', 'new'=>'recommend_new', 'hot'=>'recommend_hot', 'promote'=>'recommend_promotion');
    $num = get_library_number($type2lib[$type]);

    switch ($type)
    {
        case 'best':
            $sql .= ' AND is_best = 1';
            break;
        case 'new':
            $sql .= ' AND is_new = 1';
            break;
        case 'hot':
            $sql .= ' AND is_hot = 1';
            break;
        case 'promote':
            $time = gmtime();
            $sql .= " AND is_promote = 1 AND promote_start_date <= '$time' AND promote_end_date >= '$time'";
            break;
    }

    if (!empty($cats))
    {
        //$sql .= " AND (" . $cats . " OR " . get_extension_goods($cats) .")";
		$sql .= " AND (c.parent_id =" . $cats. " OR " . get_extension_goods($cats) .")";
    }

    $order_type = $GLOBALS['_CFG']['recommend_order'];
    $sql .= ($order_type == 0) ? ' ORDER BY g.sort_order, g.last_update DESC' : ' ORDER BY RAND()';
    $res = $GLOBALS['db']->selectLimit($sql, $num);

    $idx = 0;
    $goods = array();
    while ($row = $GLOBALS['db']->fetchRow($res))
    {
        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]['brand_name']   = $row['brand_name'];
        $goods[$idx]['short_name']   = $GLOBALS['_CFG']['goods_name_length'] > 0 ?
                                       sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];
        $goods[$idx]['market_price'] = price_format($row['market_price']);
        $goods[$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']);

        $goods[$idx]['short_style_name'] = add_style($goods[$idx]['short_name'], $row['goods_name_style']);
        $idx++;
    }

    return $goods;
}