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83 lines
2.7 KiB
PHTML
83 lines
2.7 KiB
PHTML
5 years ago
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<?php
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// +----------------------------------------------------------------------
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// | OneThink [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2013 http://www.onethink.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace Common\Api;
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class CategoryApi {
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/**
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* 获取分类信息并缓存分类
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* @param integer $id 分类ID
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* @param string $field 要获取的字段名
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* @return string 分类信息
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*/
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public static function get_category($id, $field = null){
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static $list;
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/* 非法分类ID */
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if(empty($id) || !is_numeric($id)){
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return '';
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}
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/* 读取缓存数据 */
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if(empty($list)){
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$list = S('sys_category_list');
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}
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/* 获取分类名称 */
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if(!isset($list[$id])){
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$cate = M('Category')->find($id);
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if(!$cate || 1 != $cate['status']){ //不存在分类，或分类被禁用
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return '';
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}
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$list[$id] = $cate;
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S('sys_category_list', $list); //更新缓存
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}
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return is_null($field) ? $list[$id] : $list[$id][$field];
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}
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/* 根据ID获取分类标识 */
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public static function get_category_name($id){
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return get_category($id, 'name');
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}
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/* 根据ID获取分类名称 */
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public static function get_category_title($id){
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return get_category($id, 'title');
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}
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/**
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* 获取参数的所有父级分类
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* @param int $cid 分类id
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* @return array 参数分类和父类的信息集合
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* @author huajie <banhuajie@163.com>
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*/
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public static function get_parent_category($cid){
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if(empty($cid)){
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return false;
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}
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$cates = M('Category')->where(array('status'=>1))->field('id,title,pid')->order('sort')->select();
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$child = get_category($cid); //获取参数分类的信息
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$pid = $child['pid'];
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$temp = array();
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$res[] = $child;
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while(true){
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foreach ($cates as $key=>$cate){
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if($cate['id'] == $pid){
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$pid = $cate['pid'];
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array_unshift($res, $cate); //将父分类插入到数组第一个元素前
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}
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}
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if($pid == 0){
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break;
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}
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}
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return $res;
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}
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}
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