文章分类：，同一个新闻 属于 多个菜单项 。比如某新闻既属于校园新闻又属于机构设置，那么点开校园新闻菜单项可以看到这篇文章，点开机构设置也可以看到这篇文章。
1.两个数据库 type放菜单项 每个菜单项的id唯一。dynamics放文章，文章的tag可以是多个type中的id
public function column($p=1){$school_dynamicsModel = D('school_dynamics');$school_typeModel =D('school_type');$photoModel =D('photo');$pid = isset($_REQUEST['pid']) ? $_REQUEST['pid'] : false;$p = intval($p) > 0 ? $p : 1;$pagesize = 20;$offset = $pagesize * ($p - 1);$count = $school_dynamicsModel->where("tag like '%' '$pid' '%' and is_delete = 0")->count();$list_school = $school_dynamicsModel->where("tag like '%' '$pid' '%' and is_delete = 0")->order('time desc ')->limit($offset . ',' . $pagesize)->select();$list = array();foreach ($list_school as $p) {if ($p['release_date']) {$p['time'] = $p['release_date'];}else {$p['time'] = date('Y-m-d H:i:s', $p['time']);}$list[] = $p;}$this->assign('list',$list);$this->assign('page', $page);$this->display();}然后在页面上循环输出
<div class="items-content"><ul class="article"><volist name="list" id="val"><li><a href="/home/index/column_form.html?id={$val.id} "><span>{$val.title}</span><strong>{$val.time}</strong></a></li></volist></ul><div class="pages">{$page}</div>
</div>2.当你点击页面上的修改或者新增或者修改时，input把tag中的对应的菜单项读出来
public function edit($aid = 0){$aid = intval($aid);$school_dynamicsModel = D('school_dynamics');$item = $school_dynamicsModel->where("id='$aid'")->find();$conditions=$item['tag'];$character_string=explode(',',$conditions);for($cycle=0;$cycle<count($character_string);$cycle++) {$record = D('school_type')->where("id ='$character_string[$cycle]'")->find();$recordtag[]=$record['title'];}$tag=implode(',',$recordtag);$item['tag']= $tag;if (!$item) {$this->error('参数错误！');}$option = M('school_type')->order('sort ASC')->select();$option = $this->getMenu($option);$this->assign('option', $option);$this->assign('tag', $tag);$this->assign('item', $item);$this->display('form');}public function update(){$id = isset($_REQUEST['id']) ? $_REQUEST['id'] : false;$data['tag'] = $_POST['titietag'];$tag_str = $data['tag'];$array_tag = explode(',',$tag_str);for ($cyclic_variable = 0; $cyclic_variable < count($array_tag); $cyclic_variable++) {$result = D('school_type')->where("title='$array_tag[$cyclic_variable]'")->find();$record_id[] = $result['id'];}$char = implode(',', $record_id);$data['tag'] = $char; if ($id) {D('school_dynamics')->data($data)->where('id=' . $id)->save();addlog('编辑内容，ID：' . $id);$this->success('恭喜！内容编辑成功！', U('/qwadmin/homepage/index'));} else {$result = D('school_dynamics')->data($data)->add();if ($result) {addlog('新增内容，ID：' . $result['id']);$this->success('恭喜！内容新增成功！', U('/qwadmin/homepage/index'));} else {$this->error('抱歉，未知错误！');}}}网页代码
<div class="form-group"><label class="col-sm-1 control-label no-padding-right" for="form-field-1">文章类目： </label><div class="col-sm-9"><select id="xinzen" name="xinzen" class="rcol-xs-10 col-sm-5"><volist name="option" id="v"><option value="{$v.id}">{$v['title']}</option><volist name="v.children" id="vv"><option value="{$vv.id}">{$vv['title']}</option></volist></volist></select><span class="help-inline col-xs-12 col-sm-7"><span class="middle"><input type="button" value="新增" onclick="toTag()"></span></span></div></div><script>function toTag() {var originally_input=$("#titletag").val();$("#titletag").val("");var add_new=$("#xinzen option:selected").text();if (originally_input.indexOf(add_new, 0) == -1) {if(originally_input==''){originally_input = add_new;}else{originally_input += ',' + add_new;}$("#titletag").val(originally_input);} else {$("#titletag").val(originally_input);}}
</script>