前后端分离进行权限管理之后端API返回菜单及权限信息(三)

一、动态菜单API的生成

1、API

    #菜单信息
    url(r'^menus$', views.MenuModelView.as_view({
     "get": "list", }), name="menus-list"),

2、MenuModelView

from collections import OrderedDictclass MenuModelView(GenericViewSet):

    authentication_classes = [AuthToken]

    def list(self,request,*args,**kwargs):

        ret = {
     "data": {}, "meta": {
     "message": "获取菜单成功", "code": 2000}}
        try:
            user = request.user
            menus_dict = InitPermission(request, user).init_menus_dict()
            od = OrderedDict()
            if menus_dict:
                for key in sorted(menus_dict):
                    od[key] = menus_dict[key]
            ret["data"] = {
     "menus_list":od.values()}
        except Exception as e:
            ret["meta"]["message"] = "获取菜单失败"
            ret["meta"]["code"] = 2001

        return Response(ret)

  在restframework框架的认证组件中通过 authentication_classes = [AuthToken]进行认证,获得user,从而传入user,从而初始化菜单数据,然后根据数据库中的positionid可以进行菜单排序。

认证参考:https://www.cnblogs.com/shenjianping/p/11387324.html

初始化菜单参考:https://www.cnblogs.com/shenjianping/p/11448427.html

二、权限API生成

1、API

    #前端获取权限,用于按钮级别的权限检验
    url(r'^roles/rights$',views.RightsView.as_view({
     "get": "list"}), name="roles-rights-list"),

2、RightsView

class RightsView(GenericViewSet):

    def list(self,request,*args,**kwargs):
        """
        从redis中获取权限相关,用于前台按钮级别权限检验
        {'/crm/dept$': ['get'], 'rights/(?P\\w+)$': ['get'], '/crm/menus': ['get']
        :param request:
        :param args:
        :param kwargs:
        :return:
        """
        #从redis中获取permission_dict
        ret = {
     "data": {}, "meta": {
            "message": "获取权限信息成功", "code": 2000}}
        try:
            permission_bytes = SessionStore().get_session(settings.PERMISSION_SESSION_KEY)
            permission_dict = eval(permission_bytes)
            ret["data"] = permission_dict
        except Exception as e:
            ret["meta"]["message"] = "获取权限信息失败"
            ret["meta"]["code"] = 2001

        return Response(ret)

在用户权限初始化后会将其保存在redis中,这里返回的就是在redis中存储的用户权限。

转载于:https://www.cnblogs.com/shenjianping/p/11457076.html

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