PHP之Category类库 无限分类

Category类库 无限分类

以下是使用该类库的方法

include("Common/Category.class.php");
$Category = new Category("ArticleCategory",array('id','pid','name','fullname'));
$categoryList = $Category->getList();

1、通过include包含类库

2、通过new实例化类

3、调用getList()方法获取所有分类列表

4、返回：所有分类列表，可以通过获取fullname显示参考。

效果如图：

以下是类库完整源码：

model = D($model))
  $this->error = $model . "模型不存在！";
 }
 if (is_object($model))
     $this->model = &$model;
 
 $this->fields['cid'] = $fields['0'] ? $fields['0'] : 'id';
 $this->fields['pid'] = $fields['1'] ? $fields['1'] : 'pid';
 $this->fields['name'] = $fields['2'] ? $fields['2'] : 'name';
 $this->fields['fullname'] = $fields['3'] ? $fields['3'] : 'fullname';
    }
 
    
    private function _findAllCat($condition, $orderby = NuLL) {
 $this->rawList = $this->model->where($condition)->order($orderby)->select();
    }
 
    
    public function getChild($pid) {
 $childs = array();
 foreach ($this->rawList as $Category) {
     if ($Category[$this->fields['pid']] == $pid){
  $childs[] = $Category;
     }
 }
 return $childs;
    }
 
    
    private function _searchList($cid = 0, $space = "") {
 $childs = $this->getChild($cid);
 //下级分类的数组
 //如果没下级分类，结束递归
 if (!($n = count($childs))){
     return;
 }
 $m = 1;
 //循环所有的下级分类
 for ($i = 0; $i < $n; $i++) {
     $pre = "";
     $pad = "";
     if ($n == $m) {
  $pre = $this->icon[2];
     } else {
  $pre = $this->icon[1];
  $pad = $space ? $this->icon[0] : "";
     }
     $childs[$i][$this->fields['fullname']] = ($space ? $space . $pre : "") . $childs[$i][$this->fields['name']];
     $this->formatList[] = $childs[$i];
     $this->_searchList($childs[$i][$this->fields['cid']], $space . $pad . "  "); //递归下一级分类
     $m++;
 }
    }
 
    
    public function getList($condition = NuLL, $cid = 0, $orderby = NuLL) {
 unset($this->rawList, $this->formatList);
 $this->_findAllCat($condition, $orderby);
 $this->_searchList($cid);
 return $this->formatList;
    }
 
    
    public function getTree($data, $cid = 0) {
 unset($this->rawList, $this->formatList);
 $this->rawList = $data;
 $this->_searchList($cid);
 return $this->formatList;
    }
 
    
    public function getError() {
 return $this->error;
    }
 
    
    private function _checkCatID($cid) {
 if (intval($cid)) {
     return true;
 } else {
     $this->error = "参数分类ID为空或者无效！";
     return false;
 }
    }
 
    
    private function _searchPath($cid) {
 //检查参数
 if (!$this->_checkCatID($cid))
     return false;
 $rs = $this->model->find($cid);     //初始化对象，查找上级Id；
 $this->formatList[] = $rs;  //保存结果
 $this->_searchPath($rs[$this->fields['pid']]);
    }
 
    
    public function getPath($cid) {
 unset($this->rawList, $this->formatList);
 $this->_searchPath($cid);     //查询分类路径
 return array_reverse($this->formatList);
    }
 
    
    public function add($data) {
 if (empty($data))
     return false;
 return $this->model->data($data)->add();
    }
 
    
    public function edit($data) {
 if (empty($data))
     return false;
 return $this->model->data($data)->save();
    }
 
    
    public function del($cid) {
 $cid = intval($cid);
 if (empty($cid))
     return false;
 $conditon[$this->fields['cid']] = $cid;
 return $this->model->where($conditon)->delete();
    }
 
    
    public function getIdArr($cid){
  $cid = !empty($cid) ? intval($cid) : 0;
  if (empty($cid)) return false;
  $list = $this->getList($condition = NuLL,$cid, $orderby = NuLL);
  foreach($list as $val){
      $idArr[] = $val[$this->fields['cid']];
  }
  unset($list);
  $idArr[] = $cid;
  return $idArr;
    }
 
}
?>

demo里包含一个文件夹，三个文件。Helper文件夹包含了无限分类处理类，文件夹放在Application/Common/目录下，CategoryController.class.php是控制器文件，用来演示如何使用无限分类处理类，控制器使用无限分类切记先引入use CommonHelperCategory;category_add.html是视图文件，用来演示如何在模板调用无限分类。

go_category.sql是分类表数据库文件，仅用来参考，分类表的核心字段有id:栏目id，title：栏目名，parent_id：父级栏目id，is_show：是否在前台显示， sort:前台排序。

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