动态菜单怎么在用户登录之后刷新菜单？

[Dreampie]

//登录
$http.post('/api/v1.0/sessions', {username: username, password: password, rememberMe: rememberMe}, (rep)->
          data.ferror = false
          data.loading = false
          #返回的user数据
          $state.user = rep
          try
            localStorage.setItem('username', username)
          //把菜单权限存到localStorage
            localStorage.setItem("permissions", stateman.user.permissions)
          catch e

          data.password = null
          component.$update()

          #跳转
          $state.go("app.order");
)

//app模块的菜单数据 菜单组件 <app-menu ref="appMenu" menus={menus} state={@(this.$state)}></app-menu>
config: (data)->
      data.menus = [
        {url: '/', name: '首页', icon: 'home', state: 'app.index'}
      ]

      try
        permissions = localStorage.getItem("permissions")
      catch e

      if permissions
        permissions=permissions.split(",")
        for permission in permissions
          switch permission
            when 'P_ORDER' then data.menus.push({url: '/order', name: '订单', icon: 'table', state: 'app.order'})
            when 'P_SALE' then data.menus.push({url: '/sale', name: '销售', icon: 'strikethrough', state: 'app.sale'})
            when 'P_FINANCE' then data.menus.push({url: '/finance', name: '财务', icon: 'yen', state: 'app.finance'})
            when 'P_SETTING' then data.menus.push({url: '/setting', name: '设置', icon: 'configure', state: 'app.setting'})