onethink学习之动态扩展菜单

在Admin\View\Public\base.html中有 {:extra_menu($_extra_menu,$__MENU__)}这句调用。

参数$_extra_menu在Admin\Controller\AddonsController.class.php进行指定，代码为：

$this->assign('_extra_menu',array(
'已装插件后台'=> D('Addons')->getAdminList(),
));

参数$__MENU__在Admin\Controller\AdminController.class.php中进行指定，代码为：

$this->assign('__MENU__', $this->getMenus());

函数getMenus()的代码为：

/**
* 获取控制器菜单数组,二级菜单元素位于一级菜单的'_child'元素中
*
*/
final public function getMenus($controller=CONTROLLER_NAME){

// $menus  =   session('ADMIN_MENU_LIST'.$controller);
if(empty($menus)){
// 获取主菜单
$where['pid']   =   0;
$where['hide']  =   0;
if(!C('DEVELOP_MODE')){ // 是否开发者模式
$where['is_dev']    =   0;
}
$menus['main']  =   M('Menu')->where($where)->order('sort asc')->select();//获得主菜单

$menus['child'] = array(); //设置子节点

//高亮主菜单 获得当前url的id
$current = M('Menu')->where("url like '%{$controller}/".ACTION_NAME."%'")->field('id')->find();

if($current){
$nav = D('Menu')->getPath($current['id']);

$nav_first_title = $nav[0]['title'];//获得当前url的名称

foreach ($menus['main'] as $key => $item) {
if (!is_array($item) || empty($item['title']) || empty($item['url']) ) {
$this->error('控制器基类$menus属性元素配置有误');
}
if( stripos($item['url'],MODULE_NAME)!==0 ){//如果url中没有模块名，则添加模块名
$item['url'] = MODULE_NAME.'/'.$item['url'];
}
// 判断用户是否有主菜单权限
if ( !IS_ROOT && !$this->checkRule($item['url'],AuthRuleModel::RULE_MAIN,null) ) {
unset($menus['main'][$key]);
continue;//继续循环
}

// 获取当前主菜单的子菜单项
if($item['title'] == $nav_first_title){
$menus['main'][$key]['class']='current';
//生成child树
$groups = M('Menu')->where("pid = {$item['id']}")->distinct(true)->field("`group`")->select();//获得组名称，如扩展

if($groups){
$groups = array_column($groups, 'group');

}else{
$groups =   array();
}

//获取二级分类的合法url
$where          =   array();
$where['pid']   =   $item['id'];
$where['hide']  =   0;
if(!C('DEVELOP_MODE')){ // 是否开发者模式
$where['is_dev']    =   0;
}
$second_urls = M('Menu')->where($where)->getField('id,url');//获得某个菜单的所有子菜单

if(!IS_ROOT){
// 检测菜单权限
$to_check_urls = array();
foreach ($second_urls as $key=>$to_check_url) {
if( stripos($to_check_url,MODULE_NAME)!==0 ){
$rule = MODULE_NAME.'/'.$to_check_url;
}else{
$rule = $to_check_url;
}
if($this->checkRule($rule, AuthRuleModel::RULE_URL,null))
$to_check_urls[] = $to_check_url;
}
}

// 按照分组生成子菜单树

foreach ($groups as $g) {
$map = array('group'=>$g);
if(isset($to_check_urls)){
if(empty($to_check_urls)){
// 没有任何权限
continue;
}else{
$map['url'] = array('in', $to_check_urls);
}
}
$map['pid'] =   $item['id'];
$map['hide']    =   0;
if(!C('DEVELOP_MODE')){ // 是否开发者模式
$map['is_dev']  =   0;
}
$menuList = M('Menu')->where($map)->field('id,pid,title,url,tip')->order('sort asc')->select();

$menus['child'][$g] = list_to_tree($menuList, 'id', 'pid', 'operater', $item['id']);

}
if($menus['child'] === array()){
//$this->error('主菜单下缺少子菜单，请去系统=》后台菜单管理里添加');
}
}
}
}
// session('ADMIN_MENU_LIST'.$controller,$menus);
}

return $menus;
}