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category.php
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<?php
/**
* ECSHOP 商品分类
* ============================================================================
* * 版权所有 2005-2012 上海商派网络科技有限公司，并保留所有权利。
* 网站地址: http://www.ecshop.com；
* ----------------------------------------------------------------------------
* 这不是一个自由软件！您只能在不用于商业目的的前提下对程序代码进行修改和
* 使用；不允许对程序代码以任何形式任何目的的再发布。
* ============================================================================
* $Author: liubo $
* $Id: category.php 17217 2011-01-19 06:29:08Z liubo $
*/
define('IN_ECS', true);
require(dirname(__FILE__) . '/includes/init.php');
if ((DEBUG_MODE & 2) != 2)
{
$smarty->caching = true;
}
/*------------------------------------------------------ */
//-- INPUT
/*------------------------------------------------------ */
/* 获得请求的分类 ID */
if (isset($_REQUEST['id']))
{
$cat_id = intval($_REQUEST['id']);
}
elseif (isset($_REQUEST['category']))
{
$cat_id = intval($_REQUEST['category']);
}
else
{
/* 如果分类ID为0，则返回首页 */
ecs_header("Location: ./\n");
exit;
}
/* 初始化分页信息 */
$page = isset($_REQUEST['page']) && intval($_REQUEST['page']) > 0 ? intval($_REQUEST['page']) : 1;
$size = isset($_CFG['page_size']) && intval($_CFG['page_size']) > 0 ? intval($_CFG['page_size']) : 10;
$brand = isset($_REQUEST['brand']) && intval($_REQUEST['brand']) > 0 ? intval($_REQUEST['brand']) : 0;
$price_max = isset($_REQUEST['price_max']) && intval($_REQUEST['price_max']) > 0 ? intval($_REQUEST['price_max']) : 0;
$price_min = isset($_REQUEST['price_min']) && intval($_REQUEST['price_min']) > 0 ? intval($_REQUEST['price_min']) : 0;
$filter_attr_str = isset($_REQUEST['filter_attr']) ? htmlspecialchars(trim($_REQUEST['filter_attr'])) : '0';
$filter_attr_str = trim(urldecode($filter_attr_str));
$filter_attr_str = preg_match('/^[\d\.]+$/',$filter_attr_str) ? $filter_attr_str : '';
$filter_attr = empty($filter_attr_str) ? '' : explode('.', $filter_attr_str);
/* 排序、显示方式以及类型 */
$default_display_type = $_CFG['show_order_type'] == '0' ? 'list' : ($_CFG['show_order_type'] == '1' ? 'grid' : 'text');
$default_sort_order_method = $_CFG['sort_order_method'] == '0' ? 'DESC' : 'ASC';
$default_sort_order_type = $_CFG['sort_order_type'] == '0' ? 'goods_id' : ($_CFG['sort_order_type'] == '1' ? 'shop_price' : 'last_update');
$sort = (isset($_REQUEST['sort']) && in_array(trim(strtolower($_REQUEST['sort'])), array('goods_id', 'shop_price', 'last_update','sales_volume'))) ? trim($_REQUEST['sort']) : $default_sort_order_type;
$order = (isset($_REQUEST['order']) && in_array(trim(strtoupper($_REQUEST['order'])), array('ASC', 'DESC'))) ? trim($_REQUEST['order']) : $default_sort_order_method;
$display = (isset($_REQUEST['display']) && in_array(trim(strtolower($_REQUEST['display'])), array('list', 'grid', 'text'))) ? trim($_REQUEST['display']) : (isset($_COOKIE['ECS']['display']) ? $_COOKIE['ECS']['display'] : $default_display_type);
$display = in_array($display, array('list', 'grid', 'text')) ? $display : 'text';
setcookie('ECS[display]', $display, gmtime() + 86400 * 7);
/*------------------------------------------------------ */
//-- PROCESSOR
/*------------------------------------------------------ */
/* 页面的缓存ID */
$cache_id = sprintf('%X', crc32($cat_id . '-' . $display . '-' . $sort .'-' . $order .'-' . $page . '-' . $size . '-' . $_SESSION['user_rank'] . '-' .
$_CFG['lang'] .'-'. $brand. '-' . $price_max . '-' .$price_min . '-' . $filter_attr_str));
//判断是否顶级分类调用不同模板 by zhouhuan
$sql = 'SELECT parent_id,is_top_style FROM '.$ecs->table("category")." WHERE cat_id=$cat_id";
$cat_row = $db->getRow($sql);
if($cat_row['parent_id'] == 0 && $cat_row['is_top_style'] != 0)
{
$dwt_name = 'category_top';
}
else
{
$dwt_name = 'category';
}
if (!$smarty->is_cached($dwt_name.'.dwt', $cache_id))
{
/* 如果页面没有被缓存则重新获取页面的内容 */
$children = get_children($cat_id);
$cat = get_cat_info($cat_id); // 获得分类的相关信息
if (!empty($cat))
{
$smarty->assign('keywords', htmlspecialchars($cat['keywords']));
$smarty->assign('description', htmlspecialchars($cat['cat_desc']));
$smarty->assign('cat_style', htmlspecialchars($cat['style']));
}
else
{
/* 如果分类不存在则返回首页 */
ecs_header("Location: ./\n");
exit;
}
/* 赋值固定内容 */
if ($brand > 0)
{
$sql = "SELECT brand_name FROM " .$GLOBALS['ecs']->table('brand'). " WHERE brand_id = '$brand'";
$brand_name = $db->getOne($sql);
}
else
{
$brand_name = '';
}
/* 获取价格分级 */
if ($cat['grade'] == 0 && $cat['parent_id'] != 0)
{
$cat['grade'] = get_parent_grade($cat_id); //如果当前分类级别为空，取最近的上级分类
}
if ($cat['grade'] > 1)
{
/* 需要价格分级 */
/*
算法思路：
1、当分级大于1时，进行价格分级
2、取出该类下商品价格的最大值、最小值
3、根据商品价格的最大值来计算商品价格的分级数量级：
价格范围(不含最大值) 分级数量级
0-0.1 0.001
0.1-1 0.01
1-10 0.1
10-100 1
100-1000 10
1000-10000 100
4、计算价格跨度：
取整((最大值-最小值) / (价格分级数) / 数量级) * 数量级
5、根据价格跨度计算价格范围区间
6、查询数据库
可能存在问题：
1、
由于价格跨度是由最大值、最小值计算出来的
然后再通过价格跨度来确定显示时的价格范围区间
所以可能会存在价格分级数量不正确的问题
该问题没有证明
2、
当价格=最大值时，分级会多出来，已被证明存在
*/
$sql = "SELECT min(g.shop_price) AS min, max(g.shop_price) as max ".
" FROM " . $ecs->table('goods'). " AS g ".
" WHERE ($children OR " . get_extension_goods($children) . ') AND g.is_delete = 0 AND g.is_on_sale = 1 AND g.is_alone_sale = 1 ';
//获得当前分类下商品价格的最大值、最小值
$row = $db->getRow($sql);
// 取得价格分级最小单位级数，比如，千元商品最小以100为级数
$price_grade = 0.0001;
for($i=-2; $i<= log10($row['max']); $i++)
{
$price_grade *= 10;
}
//跨度
$dx = ceil(($row['max'] - $row['min']) / ($cat['grade']) / $price_grade) * $price_grade;
if($dx == 0)
{
$dx = $price_grade;
}
for($i = 1; $row['min'] > $dx * $i; $i ++);
for($j = 1; $row['min'] > $dx * ($i-1) + $price_grade * $j; $j++);
$row['min'] = $dx * ($i-1) + $price_grade * ($j - 1);
for(; $row['max'] >= $dx * $i; $i ++);
$row['max'] = $dx * ($i) + $price_grade * ($j - 1);
$sql = "SELECT (FLOOR((g.shop_price - $row[min]) / $dx)) AS sn, COUNT(*) AS goods_num ".
" FROM " . $ecs->table('goods') . " AS g ".
" WHERE ($children OR " . get_extension_goods($children) . ') AND g.is_delete = 0 AND g.is_on_sale = 1 AND g.is_alone_sale = 1 '.
" GROUP BY sn ";
$price_grade = $db->getAll($sql);
foreach ($price_grade as $key=>$val)
{
$temp_key = $key + 1;
$price_grade[$temp_key]['goods_num'] = $val['goods_num'];
$price_grade[$temp_key]['start'] = $row['min'] + round($dx * $val['sn']);
$price_grade[$temp_key]['end'] = $row['min'] + round($dx * ($val['sn'] + 1));
$price_grade[$temp_key]['price_range'] = $price_grade[$temp_key]['start'] . ' - ' . $price_grade[$temp_key]['end'];
$price_grade[$temp_key]['formated_start'] = price_format($price_grade[$temp_key]['start']);
$price_grade[$temp_key]['formated_end'] = price_format($price_grade[$temp_key]['end']);
$price_grade[$temp_key]['url'] = build_uri('category', array('cid'=>$cat_id, 'bid'=>$brand, 'price_min'=>$price_grade[$temp_key]['start'], 'price_max'=> $price_grade[$temp_key]['end'], 'filter_attr'=>$filter_attr_str), $cat['cat_name']);
/* 判断价格区间是否被选中 */
if (isset($_REQUEST['price_min']) && $price_grade[$temp_key]['start'] == $price_min && $price_grade[$temp_key]['end'] == $price_max)
{
$price_grade[$temp_key]['selected'] = 1;
}
else
{
$price_grade[$temp_key]['selected'] = 0;
}
}
$price_grade[0]['start'] = 0;
$price_grade[0]['end'] = 0;
$price_grade[0]['price_range'] = $_LANG['all_attribute'];
$price_grade[0]['url'] = build_uri('category', array('cid'=>$cat_id, 'bid'=>$brand, 'price_min'=>0, 'price_max'=> 0, 'filter_attr'=>$filter_attr_str), $cat['cat_name']);
$price_grade[0]['selected'] = empty($price_max) ? 1 : 0;
$smarty->assign('price_grade', $price_grade);
}
/* 品牌筛选 */
$sql = "SELECT b.brand_id, b.brand_name, COUNT(*) AS goods_num ".
"FROM " . $GLOBALS['ecs']->table('brand') . "AS b, ".
$GLOBALS['ecs']->table('goods') . " AS g LEFT JOIN ". $GLOBALS['ecs']->table('goods_cat') . " AS gc ON g.goods_id = gc.goods_id " .
"WHERE g.brand_id = b.brand_id AND ($children OR " . 'gc.cat_id ' . db_create_in(array_unique(array_merge(array($cat_id), array_keys(cat_list($cat_id, 0, false))))) . ") AND b.is_show = 1 " .
" AND g.is_on_sale = 1 AND g.is_alone_sale = 1 AND g.is_delete = 0 ".
"GROUP BY b.brand_id HAVING goods_num > 0 ORDER BY b.sort_order, b.brand_id ASC";
$brands = $GLOBALS['db']->getAll($sql);
foreach ($brands AS $key => $val)
{
$temp_key = $key + 1;
$brands[$temp_key]['brand_name'] = $val['brand_name'];
$brands[$temp_key]['url'] = build_uri('category', array('cid' => $cat_id, 'bid' => $val['brand_id'], 'price_min'=>$price_min, 'price_max'=> $price_max, 'filter_attr'=>$filter_attr_str), $cat['cat_name']);
/* 判断品牌是否被选中 */
if ($brand == $brands[$key]['brand_id'])
{
$brands[$temp_key]['selected'] = 1;
}
else
{
$brands[$temp_key]['selected'] = 0;
}
}
$brands[0]['brand_name'] = $_LANG['all_attribute'];
$brands[0]['url'] = build_uri('category', array('cid' => $cat_id, 'bid' => 0, 'price_min'=>$price_min, 'price_max'=> $price_max, 'filter_attr'=>$filter_attr_str), $cat['cat_name']);
$brands[0]['selected'] = empty($brand) ? 1 : 0;
$smarty->assign('brands', $brands);
/* 属性筛选 */
$ext = ''; //商品查询条件扩展
if ($cat['filter_attr'] > 0)
{
$cat_filter_attr = explode(',', $cat['filter_attr']); //提取出此分类的筛选属性
$all_attr_list = array();
foreach ($cat_filter_attr AS $key => $value)
{
$sql = "SELECT a.attr_name FROM " . $ecs->table('attribute') . " AS a, " . $ecs->table('goods_attr') . " AS ga, " . $ecs->table('goods') . " AS g WHERE ($children OR " . get_extension_goods($children) . ") AND a.attr_id = ga.attr_id AND g.goods_id = ga.goods_id AND g.is_delete = 0 AND g.is_on_sale = 1 AND g.is_alone_sale = 1 AND a.attr_id='$value'";
if($temp_name = $db->getOne($sql))
{
$all_attr_list[$key]['filter_attr_name'] = $temp_name;
$sql = "SELECT a.attr_id, MIN(a.goods_attr_id ) AS goods_id, a.attr_value AS attr_value FROM " . $ecs->table('goods_attr') . " AS a, " . $ecs->table('goods') .
" AS g" .
" WHERE ($children OR " . get_extension_goods($children) . ') AND g.goods_id = a.goods_id AND g.is_delete = 0 AND g.is_on_sale = 1 AND g.is_alone_sale = 1 '.
" AND a.attr_id='$value' ".
" GROUP BY a.attr_value";
$attr_list = $db->getAll($sql);
$temp_arrt_url_arr = array();
for ($i = 0; $i < count($cat_filter_attr); $i++) //获取当前url中已选择属性的值，并保留在数组中
{
$temp_arrt_url_arr[$i] = !empty($filter_attr[$i]) ? $filter_attr[$i] : 0;
}
$temp_arrt_url_arr[$key] = 0; //“全部”的信息生成
$temp_arrt_url = implode('.', $temp_arrt_url_arr);
$all_attr_list[$key]['attr_list'][0]['attr_value'] = $_LANG['all_attribute'];
$all_attr_list[$key]['attr_list'][0]['url'] = build_uri('category', array('cid'=>$cat_id, 'bid'=>$brand, 'price_min'=>$price_min, 'price_max'=>$price_max, 'filter_attr'=>$temp_arrt_url), $cat['cat_name']);
$all_attr_list[$key]['attr_list'][0]['selected'] = empty($filter_attr[$key]) ? 1 : 0;
foreach ($attr_list as $k => $v)
{
$temp_key = $k + 1;
$temp_arrt_url_arr[$key] = $v['goods_id']; //为url中代表当前筛选属性的位置变量赋值,并生成以‘.’分隔的筛选属性字符串
$temp_arrt_url = implode('.', $temp_arrt_url_arr);
$all_attr_list[$key]['attr_list'][$temp_key]['attr_value'] = $v['attr_value'];
$all_attr_list[$key]['attr_list'][$temp_key]['url'] = build_uri('category', array('cid'=>$cat_id, 'bid'=>$brand, 'price_min'=>$price_min, 'price_max'=>$price_max, 'filter_attr'=>$temp_arrt_url), $cat['cat_name']);
if (!empty($filter_attr[$key]) AND $filter_attr[$key] == $v['goods_id'])
{
$all_attr_list[$key]['attr_list'][$temp_key]['selected'] = 1;
}
else
{
$all_attr_list[$key]['attr_list'][$temp_key]['selected'] = 0;
}
}
}
}
$smarty->assign('filter_attr_list', $all_attr_list);
/* 扩展商品查询条件 */
if (!empty($filter_attr))
{
$ext_sql = "SELECT DISTINCT(b.goods_id) FROM " . $ecs->table('goods_attr') . " AS a, " . $ecs->table('goods_attr') . " AS b " . "WHERE ";
$ext_group_goods = array();
foreach ($filter_attr AS $k => $v) // 查出符合所有筛选属性条件的商品id */
{
if (is_numeric($v) && $v !=0 &&isset($cat_filter_attr[$k]))
{
$sql = $ext_sql . "b.attr_value = a.attr_value AND b.attr_id = " . $cat_filter_attr[$k] ." AND a.goods_attr_id = " . $v;
$ext_group_goods = $db->getColCached($sql);
$ext .= ' AND ' . db_create_in($ext_group_goods, 'g.goods_id');
}
}
}
}
assign_template('c', array($cat_id));
$position = assign_ur_here($cat_id, $brand_name);
$smarty->assign('page_title', $position['title']); // 页面标题
$smarty->assign('ur_here', $position['ur_here']); // 当前位置
$smarty->assign('categories_pro', get_categories_tree_pro()); // 分类树加强版/* 周改 */
$smarty->assign('categories', get_categories_tree($cat_id)); // 分类树
$smarty->assign('helps', get_shop_help()); // 网店帮助
$smarty->assign('top_goods', get_top10()); // 销售排行
$smarty->assign('show_marketprice', $_CFG['show_marketprice']);
/* 周改 */
$sql = 'SELECT parent_id FROM '.$ecs->table('category').' WHERE cat_id ='.$cat_id;
$parent_id = $db->getOne($sql);
$parent_id_show = $parent_id;
while($parent_id != 0)
{
$parent_id_show = $parent_id;
$sql = 'SELECT parent_id FROM '.$ecs->table('category').' WHERE cat_id ='.$parent_id;
$parent_id = $db->getOne($sql);
}
if($parent_id_show != 0)
{
$smarty->assign('parent_id_show', $parent_id_show);
}
else
{
$smarty->assign('parent_id_show', $cat_id);
}
/* 周改 */
$smarty->assign('brand_id', $brand);
$smarty->assign('price_max', $price_max);
$smarty->assign('price_min', $price_min);
$smarty->assign('filter_attr', $filter_attr_str);
$smarty->assign('feed_url', ($_CFG['rewrite'] == 1) ? "feed-c$cat_id.xml" : 'feed.php?cat=' . $cat_id); // RSS URL
//顶级分类页据输出部分
if($parent_id == 0)
{
$smarty->assign('categories_child', get_cat_child($cat_id));//获取当前顶级分类下的所有子分类
$smarty->assign('categories_child_goods', get_cat_child_goods($cat_id,1,10)); //获取当前顶级分类下的所有子分类商品
}
else
{
}
if ($brand > 0)
{
$arr['all'] = array('brand_id' => 0,
'brand_name' => $GLOBALS['_LANG']['all_goods'],
'brand_logo' => '',
'goods_num' => '',
'url' => build_uri('category', array('cid'=>$cat_id), $cat['cat_name'])
);
}
else
{
$arr = array();
}
$brand_list = array_merge($arr, get_brands($cat_id, 'category'));
$smarty->assign('data_dir', DATA_DIR);
$smarty->assign('brand_list', $brand_list);
$smarty->assign('promotion_info', get_promotion_info());
/* 调查 */
$vote = get_vote();
if (!empty($vote))
{
$smarty->assign('vote_id', $vote['id']);
$smarty->assign('vote', $vote['content']);
}
$smarty->assign('best_goods', get_category_recommend_goods('best', $children, $brand, $price_min, $price_max, $ext));
$smarty->assign('promotion_goods', get_category_recommend_goods('promote', $children, $brand, $price_min, $price_max, $ext));
$smarty->assign('hot_goods', get_category_recommend_goods('hot', $children, $brand, $price_min, $price_max, $ext));
$count = get_cagtegory_goods_count($children, $brand, $price_min, $price_max, $ext);
$max_page = ($count> 0) ? ceil($count / $size) : 1;
if ($page > $max_page)
{
$page = $max_page;
}
$goodslist = category_get_goods($children, $brand, $price_min, $price_max, $ext, $size, $page, $sort, $order);
if($display == 'grid')
{
if(count($goodslist) % 2 != 0)
{
$goodslist[] = array();
}
}
$smarty->assign('goods_list', $goodslist);
$smarty->assign('category', $cat_id);
$smarty->assign('script_name', $dwt_name);
assign_pager('category', $cat_id, $count, $size, $sort, $order, $page, '', $brand, $price_min, $price_max, $display, $filter_attr_str); // 分页
assign_dynamic($dwt_name); // 动态内容
}
$smarty->display($dwt_name.'.dwt', $cache_id);
/*------------------------------------------------------ */
//-- PRIVATE FUNCTION
/*------------------------------------------------------ */
/**
* 获得分类的信息
*
* @param integer $cat_id
*
* @return void
*/
function get_cat_info($cat_id)
{
return $GLOBALS['db']->getRow('SELECT cat_name, keywords, cat_desc, style, grade, filter_attr, parent_id FROM ' . $GLOBALS['ecs']->table('category') .
" WHERE cat_id = '$cat_id'");
}
/**
* 获得分类下的商品
*
* @access public
* @param string $children
* @return array
*/
function category_get_goods($children, $brand, $min, $max, $ext, $size, $page, $sort, $order)
{
$display = $GLOBALS['display'];
$where = "g.is_on_sale = 1 AND g.is_alone_sale = 1 AND ".
"g.is_delete = 0 AND ($children OR " . get_extension_goods($children) . ')';
if ($brand > 0)
{
$where .= "AND g.brand_id=$brand ";
}
if ($min > 0)
{
$where .= " AND g.shop_price >= $min ";
}
if ($max > 0)
{
$where .= " AND g.shop_price <= $max ";
}
/* 获得商品列表 */
$sql = 'SELECT g.goods_id, g.goods_name, g.goods_name_style, g.comments_number,g.sales_volume,g.market_price, g.is_new, g.is_best, g.is_hot, g.shop_price AS org_price, ' .
"IFNULL(mp.user_price, g.shop_price * '$_SESSION[discount]') AS shop_price, g.promote_price, g.goods_type, " .
'g.promote_start_date, g.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 $where $ext ORDER BY $sort $order";
$res = $GLOBALS['db']->selectLimit($sql, $size, ($page - 1) * $size);
$arr = array();
while ($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']);
}
else
{
$promote_price = 0;
}
/* 处理商品水印图片 */
$watermark_img = '';
if ($promote_price != 0)
{
$watermark_img = "watermark_promote_small";
}
elseif ($row['is_new'] != 0)
{
$watermark_img = "watermark_new_small";
}
elseif ($row['is_best'] != 0)
{
$watermark_img = "watermark_best_small";
}
elseif ($row['is_hot'] != 0)
{
$watermark_img = 'watermark_hot_small';
}
if ($watermark_img != '')
{
$arr[$row['goods_id']]['watermark_img'] = $watermark_img;
}
$arr[$row['goods_id']]['goods_id'] = $row['goods_id'];
if($display == 'grid')
{
$arr[$row['goods_id']]['goods_name'] = $GLOBALS['_CFG']['goods_name_length'] > 0 ? sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];
}
else
{
$arr[$row['goods_id']]['goods_name'] = $row['goods_name'];
}
$arr[$row['goods_id']]['name'] = $row['goods_name'];
$arr[$row['goods_id']]['goods_brief'] = $row['goods_brief'];
$arr[$row['goods_id']]['sales_volume'] = $row['sales_volume'];
$arr[$row['goods_id']]['comments_number'] = $row['comments_number'];
/* 折扣节省计算 by ecmoban start */
if($row['market_price'] > 0)
{
$discount_arr = get_discount($row['goods_id']); //函数get_discount参数goods_id
}
$arr[$row['goods_id']]['zhekou'] = $discount_arr['discount']; //zhekou
$arr[$row['goods_id']]['jiesheng'] = $discount_arr['jiesheng']; //jiesheng
/* 折扣节省计算 by ecmoban end */
$arr[$row['goods_id']]['goods_style_name'] = add_style($row['goods_name'],$row['goods_name_style']);
$arr[$row['goods_id']]['market_price'] = price_format($row['market_price']);
$arr[$row['goods_id']]['shop_price'] = price_format($row['shop_price']);
$arr[$row['goods_id']]['type'] = $row['goods_type'];
$arr[$row['goods_id']]['promote_price'] = ($promote_price > 0) ? price_format($promote_price) : '';
$arr[$row['goods_id']]['goods_thumb'] = get_image_path($row['goods_id'], $row['goods_thumb'], true);
$arr[$row['goods_id']]['goods_img'] = get_image_path($row['goods_id'], $row['goods_img']);
$arr[$row['goods_id']]['url'] = build_uri('goods', array('gid'=>$row['goods_id']), $row['goods_name']);
}
return $arr;
}
/**
* 获得分类下的商品总数
*
* @access public
* @param string $cat_id
* @return integer
*/
function get_cagtegory_goods_count($children, $brand = 0, $min = 0, $max = 0, $ext='')
{
$where = "g.is_on_sale = 1 AND g.is_alone_sale = 1 AND g.is_delete = 0 AND ($children OR " . get_extension_goods($children) . ')';
if ($brand > 0)
{
$where .= " AND g.brand_id = $brand ";
}
if ($min > 0)
{
$where .= " AND g.shop_price >= $min ";
}
if ($max > 0)
{
$where .= " AND g.shop_price <= $max ";
}
/* 返回商品总数 */
return $GLOBALS['db']->getOne('SELECT COUNT(*) FROM ' . $GLOBALS['ecs']->table('goods') . " AS g WHERE $where $ext");
}
/**
* 取得最近的上级分类的grade值
*
* @access public
* @param int $cat_id //当前的cat_id
*
* @return int
*/
function get_parent_grade($cat_id)
{
static $res = NULL;
if ($res === NULL)
{
$data = read_static_cache('cat_parent_grade');
if ($data === false)
{
$sql = "SELECT parent_id, cat_id, grade ".
" FROM " . $GLOBALS['ecs']->table('category');
$res = $GLOBALS['db']->getAll($sql);
write_static_cache('cat_parent_grade', $res);
}
else
{
$res = $data;
}
}
if (!$res)
{
return 0;
}
$parent_arr = array();
$grade_arr = array();
foreach ($res as $val)
{
$parent_arr[$val['cat_id']] = $val['parent_id'];
$grade_arr[$val['cat_id']] = $val['grade'];
}
while ($parent_arr[$cat_id] >0 && $grade_arr[$cat_id] == 0)
{
$cat_id = $parent_arr[$cat_id];
}
return $grade_arr[$cat_id];
}
?>