<?php
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/**
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* 店铺分类文件
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*/
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/* 获得请求的分类 ID */
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if (isset($_REQUEST['id']))
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{
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$cat_id = intval($_REQUEST['id']);
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}
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elseif (isset($_REQUEST['category']))
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{
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$cat_id = intval($_REQUEST['category']);
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}
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else
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{
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/* 如果分类ID为0，则返回首页 */
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ecs_header("Location: ./\n");
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exit;
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}
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/* 初始化分页信息 */
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$page = isset($_REQUEST['page']) && intval($_REQUEST['page']) > 0 ? intval($_REQUEST['page']) : 1;
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$brand = isset($_REQUEST['brand']) && intval($_REQUEST['brand']) > 0 ? intval($_REQUEST['brand']) : 0;
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$price_max = isset($_REQUEST['price_max']) && intval($_REQUEST['price_max']) > 0 ? intval($_REQUEST['price_max']) : 0;
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$price_min = isset($_REQUEST['price_min']) && intval($_REQUEST['price_min']) > 0 ? intval($_REQUEST['price_min']) : 0;
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$size = isset($_CFG['page_size']) && intval($_CFG['page_size']) > 0 ? intval($_CFG['page_size']) : 10;
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$sort = (isset($_REQUEST['sort']) && in_array(trim(strtolower($_REQUEST['sort'])), array('goods_id', 'shop_price', 'last_update'))) ? 'g.'.trim($_REQUEST['sort']) : 'g.goods_id';
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$order = (isset($_REQUEST['order']) && in_array(trim(strtoupper($_REQUEST['order'])), array('ASC', 'DESC'))) ? trim($_REQUEST['order']) : 'DESC';
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/*------------------------------------------------------ */
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//-- PROCESSOR
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/*------------------------------------------------------ */
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/* 页面的缓存ID */
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$cache_id = sprintf('%X', crc32($cat_id . '-' . $display . '-' . $sort .'-' . $order .'-' . $page . '-' . $size . '-' . $_SESSION['user_rank'] . '-' .
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$_CFG['lang'] .'-'. $brand. '-' . $price_max . '-' .$price_min . '-' . $filter_attr_str.'-'.$_GET['suppId']));
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if (!$smarty->is_cached('category.dwt', $cache_id))
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{
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assign_template();
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assign_template_supplier();
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$position = assign_ur_here();
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//$hereinfo = get_categories_tree($cat_id);
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//$ur_here = "<a href='supplier.php?suppId=".$_GET['suppId']."'>店铺首页</a> <code>></code> <a href='".$hereinfo[$cat_id]['url']."'>".$hereinfo[$cat_id]['name']."</a>";
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$smarty->assign('page_title', $position['title']); // 页面标题
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//$smarty->assign('ur_here', $ur_here); // 当前位置
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$smarty->assign('categories', get_categories_tree_supplier()); // 分类树
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$children = get_children_supplier($cat_id);
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$cat = get_cat_info_supplier($cat_id); // 获得分类的相关信息
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if (!empty($cat))
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{
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$smarty->assign('keywords', htmlspecialchars($cat['keywords']));
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$smarty->assign('description', htmlspecialchars($cat['cat_desc']));
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$smarty->assign('cat_style', htmlspecialchars($cat['style']));
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}
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else
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{
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/* 如果分类不存在则返回首页 */
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ecs_header("Location: index.php");
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exit;
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}
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if($cat['is_show'] >0 && $cat['is_show_cat_pic'] >0){
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$smarty->assign('cat_pic', $cat['cat_pic']);
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$smarty->assign('cat_pic_url', $cat['cat_pic_url']);
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}else{
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$smarty->assign('cat_pic', '');
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$smarty->assign('cat_pic_url', '');
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}
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/* 获取价格分级 */
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if ($cat['grade'] == 0 && $cat['parent_id'] != 0)
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{
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$cat['grade'] = get_parent_grade($cat_id); //如果当前分类级别为空，取最近的上级分类
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}
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if ($cat['grade'] > 1)
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{
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//echo "<pre>";
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//print_r($cat);
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/* 需要价格分级 */
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/*
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算法思路：
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1、当分级大于1时，进行价格分级
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2、取出该类下商品价格的最大值、最小值
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3、根据商品价格的最大值来计算商品价格的分级数量级：
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价格范围(不含最大值) 分级数量级
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0-0.1 0.001
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0.1-1 0.01
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1-10 0.1
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10-100 1
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100-1000 10
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1000-10000 100
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4、计算价格跨度：
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取整((最大值-最小值) / (价格分级数) / 数量级) * 数量级
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5、根据价格跨度计算价格范围区间
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6、查询数据库
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可能存在问题：
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1、
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由于价格跨度是由最大值、最小值计算出来的
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然后再通过价格跨度来确定显示时的价格范围区间
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所以可能会存在价格分级数量不正确的问题
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该问题没有证明
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2、
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当价格=最大值时，分级会多出来，已被证明存在
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*/
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$sql = "SELECT min(sgc.shop_price) AS min, max(sgc.shop_price) as max ".
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" FROM " . $ecs->table('goods'). " AS sgc ".
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" WHERE ($children OR " . get_extension_goods_supplier($children) . ') AND sgc.is_delete = 0 AND sgc.is_on_sale = 1 AND sgc.is_alone_sale = 1 ';
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//获得当前分类下商品价格的最大值、最小值
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$row = $db->getRow($sql);
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// 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
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$price_grade = 0.0001;
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for($i=-2; $i<= log10($row['max']); $i++)
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{
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$price_grade *= 10;
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}
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//跨度
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$dx = ceil(($row['max'] - $row['min']) / ($cat['grade']) / $price_grade) * $price_grade;
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if($dx == 0)
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{
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$dx = $price_grade;
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}
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for($i = 1; $row['min'] > $dx * $i; $i ++);
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for($j = 1; $row['min'] > $dx * ($i-1) + $price_grade * $j; $j++);
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$row['min'] = $dx * ($i-1) + $price_grade * ($j - 1);
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for(; $row['max'] >= $dx * $i; $i ++);
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$row['max'] = $dx * ($i) + $price_grade * ($j - 1);
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$sql = "SELECT (FLOOR((sgc.shop_price - $row[min]) / $dx)) AS sn, COUNT(*) AS goods_num ".
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" FROM " . $ecs->table('goods') . " AS sgc ".
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" WHERE ($children OR " . get_extension_goods_supplier($children) . ') AND sgc.is_delete = 0 AND sgc.is_on_sale = 1 AND sgc.is_alone_sale = 1 '.
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" GROUP BY sn ";
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$price_grade = $db->getAll($sql);
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foreach ($price_grade as $key=>$val)
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{
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$temp_key = $key + 1;
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$price_grade[$temp_key]['goods_num'] = $val['goods_num'];
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$price_grade[$temp_key]['start'] = $row['min'] + round($dx * $val['sn']);
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$price_grade[$temp_key]['end'] = $row['min'] + round($dx * ($val['sn'] + 1));
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$price_grade[$temp_key]['price_range'] = $price_grade[$temp_key]['start'] . ' - ' . $price_grade[$temp_key]['end'];
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$price_grade[$temp_key]['formated_start'] = price_format($price_grade[$temp_key]['start']);
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$price_grade[$temp_key]['formated_end'] = price_format($price_grade[$temp_key]['end']);
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$price_grade[$temp_key]['url'] = build_uri('supplier', array('go'=>'category','suppid'=>$_GET['suppId'],'cid'=>$cat_id, 'bid'=>$brand, 'price_min'=>$price_grade[$temp_key]['start'], 'price_max'=> $price_grade[$temp_key]['end'], 'filter_attr'=>$filter_attr_str), $cat['cat_name']);
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/* 判断价格区间是否被选中 */
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if (isset($_REQUEST['price_min']) && $price_grade[$temp_key]['start'] == $price_min && $price_grade[$temp_key]['end'] == $price_max)
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{
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$price_grade[$temp_key]['selected'] = 1;
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}
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else
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{
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$price_grade[$temp_key]['selected'] = 0;
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}
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}
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$price_grade[0]['start'] = 0;
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$price_grade[0]['end'] = 0;
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$price_grade[0]['price_range'] = $_LANG['all_attribute'];
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$price_grade[0]['url'] = build_uri('supplier', array('go'=>'category','suppid'=>$_GET['suppId'],'cid'=>$cat_id, 'bid'=>$brand, 'price_min'=>0, 'price_max'=> 0, 'filter_attr'=>$filter_attr_str), $cat['cat_name']);
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$price_grade[0]['selected'] = empty($price_max) ? 1 : 0;
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$smarty->assign('price_grade', $price_grade);
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}
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/* 品牌筛选 */
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$sql = "SELECT b.brand_id, b.brand_name, COUNT(*) AS goods_num ".
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"FROM " . $GLOBALS['ecs']->table('brand') . "AS b, ".
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$GLOBALS['ecs']->table('goods') . " AS sgc LEFT JOIN ". $GLOBALS['ecs']->table('goods_cat') . " AS gc ON sgc.goods_id = gc.goods_id " .
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"WHERE sgc.brand_id = b.brand_id AND ($children OR " . 'gc.cat_id ' . db_create_in(array_unique(array_merge(array($cat_id), array_keys(cat_list_supplier($cat_id, 0, false))))) . ") AND b.is_show = 1 " .
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" AND sgc.is_on_sale = 1 AND sgc.is_alone_sale = 1 AND sgc.is_delete = 0 ".
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"GROUP BY b.brand_id HAVING goods_num > 0 ORDER BY b.sort_order, b.brand_id ASC";
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$brands = $GLOBALS['db']->getAll($sql);
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foreach ($brands AS $key => $val)
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{
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$temp_key = $key + 1;
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$brands[$temp_key]['brand_name'] = $val['brand_name'];
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$brands[$temp_key]['url'] = build_uri('supplier', array('go'=>'category','suppid'=>$_GET['suppId'],'cid' => $cat_id, 'bid' => $val['brand_id'], 'price_min'=>$price_min, 'price_max'=> $price_max, 'filter_attr'=>$filter_attr_str), $cat['cat_name']);
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/* 判断品牌是否被选中 */
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if ($brand == $brands[$key]['brand_id'])
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{
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$brands[$temp_key]['selected'] = 1;
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}
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else
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{
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$brands[$temp_key]['selected'] = 0;
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}
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}
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$brands[0]['brand_name'] = $_LANG['all_attribute'];
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$brands[0]['url'] = build_uri('supplier', array('go'=>'category','suppid'=>$_GET['suppId'],'cid' => $cat_id, 'bid' => 0, 'price_min'=>$price_min, 'price_max'=> $price_max, 'filter_attr'=>$filter_attr_str), $cat['cat_name']);
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$brands[0]['selected'] = empty($brand) ? 1 : 0;
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$smarty->assign('brands', $brands);
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$count = get_cagtegory_goods_count($children, $brand, $price_min, $price_max);
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//$count = get_cagtegory_goods_count($children, $brand, $price_min, $price_max, $ext);
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$max_page = ($count> 0) ? ceil($count / $size) : 1;
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if ($page > $max_page)
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{
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$page = $max_page;
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}
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$goodslist = category_get_goods($children, $brand, $price_min, $price_max, $size, $page, $sort, $order);
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//$goodslist = category_get_goods($children, $brand, $price_min, $price_max, $ext, $size, $page, $sort, $order);
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if($display == 'grid')
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{
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if(count($goodslist) % 2 != 0)
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{
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$goodslist[] = array();
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}
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}
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assign_pager('supplier', $cat_id, $count, $size, $sort, $order, $page, '', $brands, $price_min, $price_max, $display, ''); // 分页
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$smarty->assign('goods_list', $goodslist);
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assign_dynamic('category');
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}
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$smarty->display('category.dwt', $cache_id);
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/*------------------------------------------------------ */
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//-- PRIVATE FUNCTION
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/*------------------------------------------------------ */
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/**
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* 获得分类的信息
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*
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* @param integer $cat_id
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*
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* @return void
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*/
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function get_cat_info_supplier($cat_id)
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{
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return $GLOBALS['db']->getRow('SELECT cat_name, keywords, cat_desc, style, grade, filter_attr, parent_id,is_show,is_show_cat_pic,cat_pic,cat_pic_url FROM ' . $GLOBALS['ecs']->table('supplier_category') .
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" WHERE cat_id = '$cat_id'");
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}
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/**
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* 获得分类下的商品
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*
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* @access public
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* @param string $children
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* @return array
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*/
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function category_get_goods($children, $brand, $min, $max, $size, $page, $sort, $order)
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{
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$display = $GLOBALS['display'];
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$where = "g.is_on_sale = 1 AND g.is_alone_sale = 1 AND ".
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"g.is_delete = 0 AND ($children)";
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if ($brand > 0)
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{
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$where .= "AND g.brand_id=$brand ";
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}
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if ($min > 0)
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{
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$where .= " AND g.shop_price >= $min ";
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}
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if ($max > 0)
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{
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$where .= " AND g.shop_price <= $max ";
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}
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/* 获得商品列表 */
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$sql = 'SELECT distinct g.goods_id, g.goods_name, g.goods_name_style, g.market_price, g.is_new, g.is_best, g.is_hot, g.shop_price AS org_price, ' .
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"IFNULL(mp.user_price, g.shop_price * '$_SESSION[discount]') AS shop_price, g.promote_price, g.goods_type, " .
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'g.promote_start_date, g.promote_end_date, g.goods_brief, g.goods_thumb ,g.original_img, g.goods_img ' .
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'FROM ' . $GLOBALS['ecs']->table('supplier_goods_cat') . ' AS sgc ' .
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'LEFT JOIN ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .
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"ON sgc.goods_id = g.goods_id " .
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'LEFT JOIN ' . $GLOBALS['ecs']->table('member_price') . ' AS mp ' .
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"ON mp.goods_id = g.goods_id AND mp.user_rank = '$_SESSION[user_rank]' " .
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"WHERE $where ORDER BY $sort $order";
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$res = $GLOBALS['db']->selectLimit($sql, $size, ($page - 1) * $size);
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$arr = array();
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while ($row = $GLOBALS['db']->fetchRow($res))
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{
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if ($row['promote_price'] > 0)
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{
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$promote_price = bargain_price($row['promote_price'], $row['promote_start_date'], $row['promote_end_date']);
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}
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else
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{
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$promote_price = 0;
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}
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/* 处理商品水印图片 */
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$watermark_img = '';
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if ($promote_price != 0)
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{
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$watermark_img = "watermark_promote_small";
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}
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elseif ($row['is_new'] != 0)
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{
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$watermark_img = "watermark_new_small";
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}
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elseif ($row['is_best'] != 0)
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{
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$watermark_img = "watermark_best_small";
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}
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elseif ($row['is_hot'] != 0)
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{
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$watermark_img = 'watermark_hot_small';
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}
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if ($watermark_img != '')
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{
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$arr[$row['goods_id']]['watermark_img'] = $watermark_img;
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}
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$arr[$row['goods_id']]['goods_id'] = $row['goods_id'];
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if($display == 'grid')
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{
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$arr[$row['goods_id']]['goods_name'] = $GLOBALS['_CFG']['goods_name_length'] > 0 ? sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];
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}
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else
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{
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$arr[$row['goods_id']]['goods_name'] = $row['goods_name'];
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}
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$arr[$row['goods_id']]['name'] = $row['goods_name'];
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$arr[$row['goods_id']]['goods_brief'] = $row['goods_brief'];
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$arr[$row['goods_id']]['goods_style_name'] = add_style($row['goods_name'],$row['goods_name_style']);
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$arr[$row['goods_id']]['market_price'] = price_format($row['market_price']);
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$arr[$row['goods_id']]['shop_price'] = price_format($row['shop_price']);
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$arr[$row['goods_id']]['type'] = $row['goods_type'];
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$arr[$row['goods_id']]['promote_price'] = ($promote_price > 0) ? price_format($promote_price) : '';
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$arr[$row['goods_id']]['goods_thumb'] = get_image_path($row['goods_id'], $row['goods_thumb'], true);
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$arr[$row['goods_id']]['goods_img'] = get_image_path($row['goods_id'], $row['goods_img']);
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$arr[$row['goods_id']]['original_img'] = get_image_path($row['goods_id'], $row['original_img']);
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$arr[$row['goods_id']]['url'] = build_uri('goods', array('gid'=>$row['goods_id']), $row['goods_name']);
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}
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return $arr;
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}
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/**
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* 获得分类下的商品总数
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*
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* @access public
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* @param string $cat_id
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* @return integer
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*/
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function get_cagtegory_goods_count($children, $brand, $min, $max)
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{
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$where = " g.is_on_sale = 1 AND g.is_alone_sale = 1 AND ".
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"g.is_delete = 0 AND ($children)";
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if ($brand > 0)
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{
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$where .= "AND g.brand_id=$brand ";
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}
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if ($min > 0)
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{
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$where .= " AND g.shop_price >= $min ";
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}
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if ($max > 0)
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{
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$where .= " AND g.shop_price <= $max ";
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}
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/* 返回商品总数 */
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$sql = 'SELECT count(distinct g.goods_id) FROM ' . $GLOBALS['ecs']->table('supplier_goods_cat') . ' AS sgc LEFT JOIN ' . $GLOBALS['ecs']->table('goods') . ' AS g ' .
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'ON sgc.goods_id = g.goods_id WHERE '.$where;
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return $GLOBALS['db']->getOne($sql);
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}
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/**
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* 取得最近的上级分类的grade值
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*
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* @access public
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* @param int $cat_id //当前的cat_id
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*
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* @return int
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*/
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function get_parent_grade($cat_id)
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{
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static $res = NULL;
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if ($res === NULL)
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{
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$data = read_static_cache('cat_parent_grade_supplier'.$_GET['suppId']);
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if ($data === false)
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{
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$sql = "SELECT parent_id, cat_id, grade ".
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" FROM " . $GLOBALS['ecs']->table('supplier_category') . "WHERE supplier_id=".$_GET['suppId'];
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$res = $GLOBALS['db']->getAll($sql);
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write_static_cache('cat_parent_grade_supplier'.$_GET['suppId'], $res);
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}
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else
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{
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$res = $data;
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}
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}
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if (!$res)
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{
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return 0;
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}
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$parent_arr = array();
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$grade_arr = array();
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foreach ($res as $val)
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{
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$parent_arr[$val['cat_id']] = $val['parent_id'];
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$grade_arr[$val['cat_id']] = $val['grade'];
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}
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while ($parent_arr[$cat_id] >0 && $grade_arr[$cat_id] == 0)
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{
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$cat_id = $parent_arr[$cat_id];
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}
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return $grade_arr[$cat_id];
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}
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?>
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