ecshop设置一个子类对应多个父类并指定跳转url的修改方法_ecshop教程_php教程

本文主要作用是将一个子类对应多个父类，并指定条跳转url的功能。ecshop是一款在线购物网站，感兴趣的可以下载源码看看。我们看看具体是怎么修改的。

　　1、数据库表“表前缀_category”添加如下字段

alter TABLE `ga_category` add `assign_child` varchar(255) default NULL;

alter TABLE `ga_category` add `jump_url` varchar(255) default NULL;

　　2、includes/lib_goods.php

　　get_categories_tree、get_child_tree函数中的

$cat_arr[$row['cat_id']]['url'] = build_uri('category', array('cid' => $row['cat_id']), $row['cat_name']);

　　改为

if(isset($row['jump_url']) != NULL && trim($row['jump_url']) != ''){

$cat_arr[$row['cat_id']]['url'] = $row['jump_url'];

}else{

$cat_arr[$row['cat_id']]['url'] = build_uri('category', array('cid' => $row['cat_id']), $row['cat_name']);

}

　　将

$three_arr[$row['cat_id']]['cat_id'] = get_child_tree($row['cat_id']);

　　改为

if(isset($row['assign_child']) != NULL && trim($row['assign_child']) != ''){

$three_arr[$row['cat_id']]['cat_id'] = get_assign_child_tree($row['assign_child']);

}else{

$three_arr[$row['cat_id']]['cat_id'] = get_child_tree($row['cat_id']);

}

　　将将获取子类的sql

$sql = 'SELECT cat_id,cat_name ,parent_id,is_show ' .

'FROM ' . $GLOBALS['ecs']->table('category') .

"WHERE parent_id = '$parent_id' AND is_show = 1 ORDER BY sort_order ASC, cat_id ASC";

　　改为（添加assign_child, jump_url两个字段用于查询用）

$sql = 'SELECT cat_id,cat_name ,parent_id,is_show, template_file, assign_child, jump_url ' .

'FROM ' . $GLOBALS['ecs']->table('category') .

"WHERE parent_id = '$parent_id' AND is_show = 1 ORDER BY sort_order ASC, cat_id ASC";

　　并添加函数

function get_assign_child_tree($tree_id = '')

{

$three_arr = array();

if($tree_id == '') return $three_arr;

$child_sql = 'SELECT cat_id, cat_name, parent_id, is_show, assign_child, jump_url ' .

'FROM ' . $GLOBALS['ecs']->table('category') .

"WHERE cat_id in( $tree_id ) AND is_show = 1 ORDER BY sort_order ASC, cat_id ASC";

$res = $GLOBALS['db']->getAll($child_sql);

foreach ($res AS $row)

{

if ($row['is_show'])

$three_arr[$row['cat_id']]['id'] = $row['cat_id'];

$three_arr[$row['cat_id']]['name'] = $row['cat_name'];

if(isset($row['jump_url']) != NULL && trim($row['jump_url']) != ''){

$three_arr[$row['cat_id']]['url'] = $row['jump_url'];

}else{

$three_arr[$row['cat_id']]['url'] = build_uri('category', array('cid' => $row['cat_id']), $row['cat_name']);

}

if (isset($row['cat_id']) != NULL)

{

if(isset($row['assign_child']) != NULL && trim($row['assign_child']) != ''){

$three_arr[$row['cat_id']]['cat_id'] = get_assign_child_tree($row['assign_child']);

}else{

$three_arr[$row['cat_id']]['cat_id'] = get_child_tree($row['cat_id']);

}

return $three_arr;

}

　　3、admin/category.php中作如下修改

　　在($_REQUEST['act'] == 'insert')、if ($_REQUEST['act'] == 'update')的条件中的

$cat['grade'] = !empty($_POST['grade']) ? intval($_POST['grade']) : 0;

$cat['filter_attr'] = !empty($_POST['filter_attr']) ? implode(',', array_unique(array_diff($_POST['filter_attr'],array(0)))) : 0;

　　后面添加

$cat['jump_url'] = !empty($_POST['jump_url']) ? trim($_POST['jump_url']) : '';

$cat['assign_child'] = !empty($_POST['assign_child']) ? trim($_POST['assign_child']) : '';

　　4、在admin/templates/category_info.htm的

<td class="label">{$lang.assign_child}:</td>

<td>

</td>

</tr>

　　中添加

<td>

</td>

</tr>

　　5、languages/zh-cn/admin/category.php中添加如下语言描述

　　$_LANG['jump_url']='跳转url（指定跳转至的url）';

　　$_LANG['assign_child']='指定子类（将其id填写在输入框中即可，多个是用应为的“,”号隔开）';

(责任编辑：好模板)