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390 lines
13 KiB
390 lines
13 KiB
<?php
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/**
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* 取得某用户等级当前时间可以享受的优惠活动
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* @param int $user_rank 用户等级id，0表示非会员
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* @return array
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*/
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function favourable_list($user_rank)
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{
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/* 购物车中已有的优惠活动及数量 */
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$used_list = cart_favourable();
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/* 当前用户可享受的优惠活动 */
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$favourable_list = array();
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$user_rank = ',' . $user_rank . ',';
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$now = gmtime();
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$sql = "SELECT * " .
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"FROM {pre}favourable_activity" .
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" WHERE CONCAT(',', user_rank, ',') LIKE '%" . $user_rank . "%'" .
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" AND start_time <= '$now' AND end_time >= '$now'" .
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" ORDER BY sort_order";
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$res = $GLOBALS['db']->query($sql);
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$favourable_list = array();
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if($res){
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foreach($res as $favourable)
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{
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$favourable['start_time'] = local_date(C('shop.time_format'), $favourable['start_time']);
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$favourable['end_time'] = local_date(C('shop.time_format'), $favourable['end_time']);
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$favourable['formated_min_amount'] = price_format($favourable['min_amount'], false);
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$favourable['formated_max_amount'] = price_format($favourable['max_amount'], false);
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$favourable['gift'] = unserialize($favourable['gift']);
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foreach ($favourable['gift'] as $key => $value)
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{
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$favourable['gift'][$key]['formated_price'] = price_format($value['price'], false);
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$sql = "SELECT COUNT(*) FROM {pre}goods WHERE is_on_sale = 1 AND goods_id = ".$value['id'];
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$is_sale = $GLOBALS['db']->getOne($sql);
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if(!$is_sale)
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{
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unset($favourable['gift'][$key]);
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}
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}
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$favourable['act_range_desc'] = act_range_desc($favourable);
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$favourable['act_type_desc'] = sprintf($GLOBALS['_LANG']['fat_ext'][$favourable['act_type']], $favourable['act_type_ext']);
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/* 是否能享受 */
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$favourable['available'] = favourable_available($favourable);
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if ($favourable['available'])
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{
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/* 是否尚未享受 */
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$favourable['available'] = !favourable_used($favourable, $used_list);
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}
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$favourable_list[] = $favourable;
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}
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}
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return $favourable_list;
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}
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/**
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* 根据购物车判断是否可以享受某优惠活动
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* @param array $favourable 优惠活动信息
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* @return bool
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*/
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function favourable_available($favourable)
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{
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/* 会员等级是否符合 */
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$user_rank = $_SESSION['user_rank'];
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if (strpos(',' . $favourable['user_rank'] . ',', ',' . $user_rank . ',') === false)
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{
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return false;
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}
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/* 优惠范围内的商品总额 */
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$amount = cart_favourable_amount($favourable);
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/* 金额上限为0表示没有上限 */
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return $amount >= $favourable['min_amount'] &&
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($amount <= $favourable['max_amount'] || $favourable['max_amount'] == 0);
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}
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/**
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* 取得购物车中某优惠活动范围内的总金额
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* @param array $favourable 优惠活动
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* @return float
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*/
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function cart_favourable_amount($favourable)
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{
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//ecmoban模板堂 --zhuo start
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if(!empty($_SESSION['user_id'])){
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$c_sess = " c.user_id = '" . $_SESSION['user_id'] . "' ";
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}else{
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$c_sess = " c.session_id = '" . real_cart_mac_ip() . "' ";
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}
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$fav_where = "";
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if($favourable['userFav_type'] == 0){
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$fav_where = " AND g.user_id = '" .$favourable['user_id']. "' ";
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}
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//ecmoban模板堂 --zhuo end
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/* 查询优惠范围内商品总额的sql */
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$sql = "SELECT SUM(c.goods_price * c.goods_number) " .
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"FROM " . $GLOBALS['ecs']->table('cart') . " AS c, " . $GLOBALS['ecs']->table('goods') . " AS g " .
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"WHERE c.goods_id = g.goods_id " .
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"AND " .$c_sess. " AND c.rec_type = '" . CART_GENERAL_GOODS . "' " .
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"AND c.is_gift = 0 " .
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"AND c.goods_id > 0 " . $fav_where; //ecmoban模板堂 --zhuo
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/* 根据优惠范围修正sql */
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if ($favourable['act_range'] == FAR_ALL)
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{
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// sql do not change
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}
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elseif ($favourable['act_range'] == FAR_CATEGORY)
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{
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/* 取得优惠范围分类的所有下级分类 */
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$id_list = array();
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$cat_list = explode(',', $favourable['act_range_ext']);
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foreach ($cat_list as $id)
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{
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$id_list = array_merge($id_list, array_keys(cat_list(intval($id), 0, false)));
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}
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$sql .= "AND g.cat_id " . db_create_in($id_list);
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}
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elseif ($favourable['act_range'] == FAR_BRAND)
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{
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$id_list = explode(',', $favourable['act_range_ext']);
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$sql .= "AND g.brand_id " . db_create_in($id_list);
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}
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else
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{
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$id_list = explode(',', $favourable['act_range_ext']);
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$sql .= "AND g.goods_id " . db_create_in($id_list);
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}
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/* 优惠范围内的商品总额 */
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return $GLOBALS['db']->getOne($sql);
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}
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/**
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* 取得优惠范围描述
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* @param array $favourable 优惠活动
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* @return string
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*/
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function act_range_desc($favourable)
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{
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if ($favourable['act_range'] == FAR_BRAND)
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{
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$sql = "SELECT brand_name FROM " . $GLOBALS['ecs']->table('brand') .
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" WHERE brand_id " . db_create_in($favourable['act_range_ext']);
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return join(',', $GLOBALS['db']->getCol($sql));
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}
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elseif ($favourable['act_range'] == FAR_CATEGORY)
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{
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$sql = "SELECT cat_name FROM " . $GLOBALS['ecs']->table('category') .
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" WHERE cat_id " . db_create_in($favourable['act_range_ext']);
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return join(',', $GLOBALS['db']->getCol($sql));
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}
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elseif ($favourable['act_range'] == FAR_GOODS)
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{
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$sql = "SELECT goods_name FROM " . $GLOBALS['ecs']->table('goods') .
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" WHERE goods_id " . db_create_in($favourable['act_range_ext']);
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return join(',', $GLOBALS['db']->getCol($sql));
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}
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else
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{
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return '';
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}
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}
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/**
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* 取得购物车中已有的优惠活动及数量
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*
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* @return array
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*/
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function cart_favourable() {
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$list = array();
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$sql = "SELECT is_gift, COUNT(*) AS num " . "FROM {pre}cart WHERE session_id = '" . SESS_ID . "'" . " AND rec_type = '" . CART_GENERAL_GOODS . "'" . " AND is_gift > 0" . " GROUP BY is_gift";
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$res = $GLOBALS['db']->getAll($sql);
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$list = array();
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if($res){
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foreach ($res as $row) {
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$list [$row ['is_gift']] = $row ['num'];
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}
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}
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return $list;
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}
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/**
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* 比较优惠活动的函数，用于排序（把可用的排在前面）
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*
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* @param array $a
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* 优惠活动a
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* @param array $b
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* 优惠活动b
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* @return int 相等返回0，小于返回-1，大于返回1
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*/
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function cmp_favourable($a, $b) {
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if ($a ['available'] == $b ['available']) {
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if ($a ['sort_order'] == $b ['sort_order']) {
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return 0;
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} else {
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return $a ['sort_order'] < $b ['sort_order'] ? - 1 : 1;
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}
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} else {
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return $a ['available'] ? - 1 : 1;
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}
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}
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/*
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* 取得购物车条件
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*/
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function sess (){
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//ecmoban模板堂 --zhuo start
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if(!empty($_SESSION['user_id'])){
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$info['sess_id'] = " user_id = '" . $_SESSION['user_id'] . "' ";
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$info['a_sess'] = " a.user_id = '" . $_SESSION['user_id'] . "' ";
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$info['b_sess'] = " b.user_id = '" . $_SESSION['user_id'] . "' ";
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$info['c_sess'] = " c.user_id = '" . $_SESSION['user_id'] . "' ";
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$info['sess_cart'] = "";
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}else{
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$info['sess_id'] = " session_id = '" . real_cart_mac_ip() . "' ";
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$info['a_sess'] = " a.session_id = '" . real_cart_mac_ip() . "' ";
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$info['b_sess'] = " b.session_id = '" . real_cart_mac_ip() . "' ";
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$info['c_sess'] = " c.session_id = '" . real_cart_mac_ip() . "' ";
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$info['sess_cart'] = real_cart_mac_ip();
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}
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//ecmoban模板堂 --zhuo ends
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return $info;
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}
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/**
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* 删除购物车中的商品
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*
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* @access public
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* @param integer $id
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* @return void
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*/
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function flow_drop_cart_goods($id) {
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$sess=sess();
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/* 取得商品id */
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$sql = "SELECT * FROM {pre}cart WHERE rec_id = '$id'";
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$row = $GLOBALS['db']->getRow($sql);
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if ($row) {
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// 如果是超值礼包
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if ($row ['extension_code'] == 'package_buy') {
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$sql = "DELETE FROM {pre}cart WHERE ".$sess['sess_id']." AND rec_id = '$id' LIMIT 1";
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}
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// 如果是普通商品，同时删除所有赠品及其配件
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elseif ($row ['parent_id'] == 0 && $row ['is_gift'] == 0) {
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/* 检查购物车中该普通商品的不可单独销售的配件并删除 */
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$sql = "SELECT c.rec_id
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FROM {pre}cart AS c, {pre}group_goods AS gg, {pre}goods AS g
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WHERE gg.parent_id = '" . $row ['goods_id'] . "'
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AND c.goods_id = gg.goods_id
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AND c.parent_id = '" . $row ['goods_id'] . "'
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AND c.extension_code <> 'package_buy'
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AND gg.goods_id = g.goods_id
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AND g.is_alone_sale = 0";
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$res = $GLOBALS['db']->getAll($sql);
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$_del_str = $id . ',';
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foreach ($res as $id_alone_sale_goods) {
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$_del_str .= $id_alone_sale_goods ['rec_id'] . ',';
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}
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$_del_str = trim($_del_str, ',');
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$sql = "DELETE FROM {pre}cart WHERE ".$sess['sess_id']." AND (rec_id IN ($_del_str) OR parent_id = '$row[goods_id]' OR is_gift <> 0)";
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}
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// 如果不是普通商品，只删除该商品即可
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else {
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$sql = "DELETE FROM {pre}cart WHERE ".$sess['sess_id']." AND rec_id = '$id' LIMIT 1";
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}
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$GLOBALS['db']->query($sql);
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}
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//删除购物车中不能单独销售的商品
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flow_clear_cart_alone();
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}
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/**
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* 删除购物车中不能单独销售的商品
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*
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* @access public
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* @return void
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*/
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function flow_clear_cart_alone() {
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$sess=sess();
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/* 查询：购物车中所有不可以单独销售的配件 */
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$sql = "SELECT c.rec_id, gg.parent_id
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FROM {pre}cart AS c
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LEFT JOIN {pre}group_goods AS gg ON c.goods_id = gg.goods_id
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LEFT JOIN {pre}goods AS g ON c.goods_id = g.goods_id
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WHERE ".$sess['c_sess']."
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AND c.extension_code <> 'package_buy'
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AND gg.parent_id > 0
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AND g.is_alone_sale = 0";
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$res = $GLOBALS['db']->query($sql);
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$rec_id = array();
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foreach ($res as $row) {
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$rec_id [$row ['rec_id']] [] = $row ['parent_id'];
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}
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if (empty($rec_id)) {
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return;
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}
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/* 查询：购物车中所有商品 */
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$sql = "SELECT DISTINCT goods_id
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FROM {pre}cart WHERE ".$sess['sess_id']."
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AND extension_code <> 'package_buy'";
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$res = $GLOBALS['db']->query($sql);
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$cart_good = array();
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foreach ($res as $row) {
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$cart_good [] = $row ['goods_id'];
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}
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if (empty($cart_good)) {
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return;
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}
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/* 如果购物车中不可以单独销售配件的基本件不存在则删除该配件 */
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$del_rec_id = '';
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foreach ($rec_id as $key => $value) {
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foreach ($value as $v) {
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if (in_array($v, $cart_good)) {
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continue 2;
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}
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}
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$del_rec_id = $key . ',';
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}
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$del_rec_id = trim($del_rec_id, ',');
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if ($del_rec_id == '') {
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return;
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}
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/* 删除 */
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$sql = "DELETE FROM {pre}cart WHERE ".$sess['sess_id']."
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AND rec_id IN ($del_rec_id)";
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$GLOBALS['db']->query($sql);
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}
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/**
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* 调用购物车信息
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*
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* @access public
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* @return string
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*/
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function cart_number()
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{
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if(!empty($_SESSION['user_id'])){
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$sess_id = " user_id = '" . $_SESSION['user_id'] . "' ";
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}else{
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$sess_id = " session_id = '" . real_cart_mac_ip() . "' ";
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}
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$sql = 'SELECT SUM(goods_number) AS number ' .
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' FROM ' . $GLOBALS['ecs']->table('cart') .
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" WHERE " . $sess_id . " AND rec_type = '" . CART_GENERAL_GOODS . "'";
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$row = $GLOBALS['db']->GetRow($sql);
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if ($row)
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{
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$number = intval($row['number']);
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}
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else
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{
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$number = 0;
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}
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return $number;
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}
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/**
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* 购物车中是否已经有某优惠
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* @param array $favourable 优惠活动
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* @param array $cart_favourable购物车中已有的优惠活动及数量
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*/
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function favourable_used($favourable, $cart_favourable)
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{
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if ($favourable['act_type'] == FAT_GOODS)
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{
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return isset($cart_favourable[$favourable['act_id']]) &&
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$cart_favourable[$favourable['act_id']] >= $favourable['act_type_ext'] &&
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$favourable['act_type_ext'] > 0;
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}
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else
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{
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return isset($cart_favourable[$favourable['act_id']]);
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}
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}
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