增加分类列表

Author: useaname

sess_test.php

@@ -0,0 +1,5 @@
+<?php
+
+require './session_overwrite.php';
+session_start();
+var_dump($_SESSION);

session_overwrite.php

@@ -0,0 +1,72 @@
+<?php
+/**
+ * 在session开启时执行
+ * @return [type] [description]
+ */
+function  sess_open(){
+	echo 'open<br>';
+
+	$link = mysql_connect('127.0.0.1:3306','root','root');
+	mysql_query('set names `utf8`');
+	mysql_query('use `demo_shop`');
+}
+/**
+ * session_start()时，开启seesions被执行
+ *负责从session纪录中华，将seesion数据读取出来
+ * @param  [type] $sess_id 当前的seession_id
+ * @return [type]    读取到seesion的数据
+ */
+function sess_read($sess_id){
+	echo 'read<br>';
+	$sql = "select  sess_data from `demo_session` where sess_id='$sess_id'";
+	$result = mysql_query($sql);
+	if ($row = mysql_fetch_assoc($result)) {
+		return $row['sees_data'];
+	}else{
+		return '';
+	}
+
+}
+
+/**
+ * 在脚本结束时被执行
+ *
+ * 负责，将当前的session 数据同步到当前的seesion纪录中
+ * @param  [type] $sees_id   [description]
+ * @param  [type] $sees_data [description]
+ * @return [type]            [description]
+ */
+function sess_write($sees_id,$sees_data){
+	echo 'write<br>';
+	$sql = "insert into `demo_session` values('$sees_id','$sess_data') on dupllicate key update sess_data='$sess_data";
+	return mysql_query($sql);
+}
+
+/**
+ * 在调用了seesion_destory()系统函数，被自动调用
+ * 负责的功能 利用当前的ID 删除被当前的session 的纪录
+ * @return [type] [description]
+ */
+function sess_destory(){
+	echo 'destory<br>';
+	$sql = "delete from `session` where seess_id='$sess_id";
+	return mysql_query($sql);
+}
+
+function sess_gc(){
+	echo 'gc<br>';
+}
+
+function sess_close(){
+	echo 'close<br>';
+	return true;
+
+}
+session_set_save_handler(
+	'sess_open',
+	'sess_close',
+	'sess_read',
+	'sess_write',
+	'sess_destory',
+	'sess_gc'
+);

shop/app/controller/back/AdminController.class.php

@@ -14,10 +14,13 @@ public function signinAction(){
 		//利用用户名 和 密码 验证用户身份
 		$model_admin = new AdminModel;
 		if ($model_admin->checkByLogin($_POST['username'],$_POST['password'])) {
-			setcookie('is_login','yes');
+			//setcookie('is_login','yes');
+			session_start();
+			$_SESSION['is_login'] = 'yes';
 			//echo '合法用户';
 			$this->jump('index.php?p=back&c=Index&a=index');
 		}else{
+			//非法用户
 			//echo '非法用户';
 			$this->jump('index.php?p=back&c=Admin&a=index','非法用户',2);
 		}

shop/app/controller/back/CategoryController.class.php

@@ -0,0 +1,12 @@
+<?php
+class CategoryController extends Controller{
+	/**
+	 *分类列表展示
+	 * @return [type] [description]
+	 */
+	public function listAction(){
+		$model_name = new CategoryModel;
+		$list = $model_name->getList();
+		require CURR_VIEW_DIR.'category.html';
+	}
+}

shop/app/controller/back/IndexController.class.php

@@ -3,10 +3,15 @@
 class IndexController extends Controller{
 
 	public function indexAction(){
-		if (isset($_COOKIE['is_login']) && $_COOKIE['is_login'] == 'yes') {
+		//判断用户是否已经登陆
+		//if (isset($_COOKIE['is_login']) && $_COOKIE['is_login'] == 'yes') {
+		session_start();
+		if(isset($_SESSION['is_login']) && $_SESSION['is_login'] == 'yes'){
 			# code...
 		}else{
-			die('没有登录');
+			//die('没有登录');
+			$this->jump('index.php?p=back&c=Admin&a=index','没有用户',5);
+			die();
 		}
 		require CURR_VIEW_DIR.'index.html';
 	}

shop/app/model/CategoryModel.class.php

@@ -0,0 +1,33 @@
+<?php
+class CategoryModel extends Model{
+	/**
+	 * 获取所有分类信息
+	 * @return 所有分类
+	 */
+	public function getList(){
+		$sql = "select * from `demo_category` order by sort_order";
+		$list = $this->db->fetchAll($sql);
+		//return $list;
+		$list =  $this->getTree($list,0,0);
+		return $list;
+	}
+
+	/**
+	 * 获取树形视图
+	 * @param  [type]  $arr  所有信息
+	 * @param  integer $pid  父分类ID
+	 * @param  [type]  $deep 当前的分类深度
+	 * @return [type]        [description]
+	 */
+	public function getTree($arr,$pid=0,$deep){
+		static $tree = array();
+		foreach ($arr as $row ) {
+			if ($row['parent_id'] == $pid) {
+				$row['deep'] =$deep;
+				$tree[ ]= $row;
+				$this->getTree($arr,$row['cat_id'],$deep+1);
+			}
+		}
+		return $tree;
+	}
+}