model = db($model)) $this->error = $model . "模型不存在!"; } if (is_object($model)) $this->model = &$model; $this->fields['cid'] = $fields['0'] ? $fields['0'] : 'cid'; $this->fields['fid'] = $fields['1'] ? $fields['1'] : 'fid'; $this->fields['name'] = $fields['2'] ? $fields['2'] : 'name'; $this->fields['fullname'] = $fields['3'] ? $fields['3'] : 'fullname'; } /** * 获取分类信息数据 * @param array,string $condition 查询条件 * @param string $orderby 排序 */ private function _findAllCat($condition, $orderby = NULL) { $this->rawList = empty($orderby) ? $this->model->where($condition)->select() : $this->model->where($condition)->order($orderby)->select(); } /** * 返回给定上级分类$fid的所有同一级子分类 * @param int $fid 传入要查询的fid * @return array 返回结构信息 */ public function getChild($fid) { $childs = array(); foreach ($this->rawList as $Category) { if ($Category[$this->fields['fid']] == $fid) $childs[] = $Category; } return $childs; } /** * 递归格式化分类前的字符 * @param int $cid 分类cid * @param string $space */ private function _searchList($cid = 0, $space = "",$level=1,$p_name='') { $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++) { $pad = ''; $childs[$i]['level'] = $level; $childs[$i]['label'] = $childs[$i]['name']; $childs[$i]['structure_id'] = $childs[$i]['id']; $this->formatList[] = $childs[$i]; $this->_searchList($childs[$i][$this->fields['cid']], $space . $pad . " ",$level+1,$childs[$i]['else']);//递归下一级分类 $m++; } } /** * 不采用数据模型时,可以从外部传递数据,得到递归格式化分类 * @param array,string $condition 条件 * @param int $cid 起始分类 * @param string $orderby 排序 * @return array 返回结构信息 */ public function getList($condition = NULL, $cid = 0, $orderby = NULL) { unset($this->rawList, $this->formatList); $this->_findAllCat($condition, $orderby, $orderby); $this->_searchList($cid); return $this->formatList? $this->formatList: []; } /** * 获取结构 * @param array $data 二维数组数据 * @param int $cid 起始分类 * @return array 递归格式化分类数组 */ public function getTree($data, $cid = 0) { unset($this->rawList, $this->formatList); $this->rawList = $data; $this->_searchList($cid); return $this->formatList; } /** * 获取错误信息 * @return string 错误信息字符串 */ public function getError() { return $this->error; } /** * 检查分类参数$cid,是否为空 * @param int $cid 起始分类 * @return boolean 递归格式化分类数组 */ private function _checkCatID($cid) { if (intval($cid)) { return true; } else { $this->error = "参数分类ID为空或者无效!"; return false; } } /** * 检查分类参数$cid,是否为空 * @param int $cid 分类cid */ private function _searchPath($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['fid']]); } /** * 查询给定分类cid的路径 * @param int $cid 分类cid * @return array 数组 */ public function getPath($cid) { unset($this->rawList, $this->formatList); $this->_searchPath($cid); //查询分类路径 return array_reverse($this->formatList); } /** * 添加分类 * @param array $data 一维数组,要添加的数据,$data需要包含上级分类ID。 * @return boolean 添加成功,返回相应的分类ID,添加失败,返回FALSE; */ public function add($data) { if (empty($data)) return false; return $this->model->data($data)->add(); } /** * 修改分类 * @param array $data 一维数组,$data需要包含要修改的分类cid。 * @return boolean 组修改成功,返回相应的分类ID,修改失败,返回FALSE; */ public function edit($data) { if (empty($data)) return false; return $this->model->data($data)->save(); } /** * 删除分类 * @param int $cid 分类cid * @return boolean 删除成功,返回相应的分类ID,删除失败,返回FALSE */ public function del($cid) { $cid = intval($cid); if (empty($cid)) return false; $conditon[$this->fields['cid']] = $cid; return $this->model->where($conditon)->delete(); } } ?>