ECSHOP后台自定义价格区间 / 四六文摘

众所周知，ECSHOP的价格区间是在后台设置一个“价格区间个数”，然后由程序来自动平分，很多ECSHOP网店主都认为这样做，有很大不尽人意的地方。也有人提供过修改方法，好像只是在模板文件里手动写死几个区间的一种方法，还是不能自由定义。下面我要讲的方法是可以在ECSHOP后台自由定义价格区间（例如：1-30,31-200,201-1000,1001-5000,5000以上），前台自动体现的一种方法，而且每个类别的价格区间可以任意设置，让价格区间更人性化。首先我们来修改ECSHOP的数据库结构，目的是给 ecs_category 增加一个新字段，进入后台》数据库管理》SQL查询，执行下面的SQL语句ALTER TABLE `ecs_category` ADD `grade_define` VARCHAR( 255 ) NOT NULL AFTER `grade`注意：这里我使用的是默认数据库前缀ecs_，如果你的数据库前缀不是 ecs_ , 请修改之。2）、打开 /admin/templates/category_info.htm找到<tr><td class="label"><a href="javascript:showNotice('noticeGrade');" title="{$lang.form_notice}"><img src="images/notice.gif" width="16" height="16" border="0" alt="{$lang.notice_style}"></a>{$lang.grade}:</td><td><input type="text" name="grade" value="{$cat_info.grade|default:0}" size="40" /> <br /><span class="notice-span" {if $help_open}style="display:block" {else} style="display:none" {/if} id="noticeGrade">{$lang.notice_grade}</span></td></tr>将它修改为<tr><td class="label">自定义价格区间:</td><td><input type="text" name="grade_define" value="{$cat_info.grade_define}" size="60" /> <br /><span class="notice-span" {if $help_open}style="display:block" {else} style="display:none" {/if} id="noticeGrade">以半角 , 间隔，如： 1-30,31-200,201-1000,1001-5000,5000以上</span></td></tr>3）、接着打开 /admin/category.php 文件，搜索$cat['grade'] = !empty($_POST['grade']) ? intval($_POST['grade']) : 0;一共能搜到两处，在每一处的下面都增加代码（注意是每一处）$cat['grade_define'] = !empty($_POST['grade_define']) ? trim($_POST['grade_define']) : ''; //自定义价格区间 by zhangyh到此，后台管理部分修改完毕。4）、下面开始修改前台部分打开 /category.php找到if ($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){$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), $cat['cat_name']);if (isset($_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', $price_grade);}将它替换为if($cat['grade_define']){$price_grade=array();$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($price_max) ? 1 : 0;$grade_temp=explode(",", $cat['grade_define']);foreach($grade_temp as $grade_temp_key=>$grade_temp_val){$grade_temp_key2=$grade_temp_key+1;$grade_temp=explode("-", $grade_temp_val);$price_grade[$grade_temp_key2]['start']=intval($grade_temp[0]);$price_grade[$grade_temp_key2]['end']=$grade_temp[1] ?intval($grade_temp[1]) : "999999999";$price_grade[$grade_temp_key2]['price_range'] = $grade_temp_val;$price_grade[$grade_temp_key2]['url'] = build_uri('category', array('cid'=>$cat_id,'bid'=>$brand, 'price_min'=>$price_grade[$grade_temp_key2]['start'],'price_max'=> $price_grade[$grade_temp_key2]['end'],'filter_attr'=>$filter_attr_str), $cat['cat_name']);if (isset($_REQUEST['price_min'])&& $price_grade[$grade_temp_key2]['start'] == $price_min&& $price_grade[$grade_temp_key2]['end'] == $price_max){$price_grade[$grade_temp_key2]['selected'] = 1;}else{$price_grade[$grade_temp_key2]['selected'] = 0;}}$smarty->assign('price_grade', $price_grade);}最后一步，找到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'");将之修改为return $GLOBALS['db']->getRow('SELECT cat_name, keywords, cat_desc, style, grade, grade_define, filter_attr, parent_id FROM ' . $GLOBALS['ecs']->table('category') ." WHERE cat_id = '$cat_id'");

ECSHOP后台自定义价格区间

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