crm 动态一级二级菜单

from django.contrib import admin
from rbac import models

# Register your models here.

class PermissionAdmin(admin.ModelAdmin):
    list_display = [‘url‘, ‘title‘,‘is_menu‘,‘icon‘]#列表显示
    list_editable = [‘title‘,‘is_menu‘,‘icon‘]#可编辑
admin.site.register(models.Permission, PermissionAdmin)
admin.site.register(models.Role)
admin.site.register(models.User)

def login(request):
    if request.method == ‘POST‘:
        # 获取用户名和密码
        user = request.POST.get(‘user‘)
        pwd = request.POST.get(‘pwd‘)
        # 去数剧库进行筛选
        obj = models.User.objects.filter(name=user, pwd=pwd).first()
        if not obj:
            return render(request, ‘login.html‘)
        permission_query = obj.roles.filter(permissions__url__isnull=False).values(‘permissions__url‘,
         ‘permissions__title‘,‘permissions__is_menu‘,‘permissions__icon‘).distinct()
        #通过查询到的用户的obj反查角色表,values 正向查询当前用户的权限表的url信息 title

        permission_list=[]#存放权限信息
        menu_list=[]#存放菜单信息
        for item in permission_query:
            permission_list.append({‘url‘:item[‘permissions__url‘]})
            if item.get(‘permissions__is_menu‘):
                menu_list.append({‘url‘:item[‘permissions__url‘],‘icon‘:item[‘permissions__icon‘],‘title‘:item[‘permissions__title‘]})

        # print(‘1111‘,permission_query)  # <QuerySet [{‘permissions__url‘: ‘/index/‘, ‘permissions__title‘: ‘首页‘}]>
        #将权限信息写入到session
        request.session[settings.PERMISSION_SESSION_KEY]=permission_list
        #将菜单 信息 写入session
        request.session[settings.MENU_SESSION_KEY]=menu_list
        request.session[‘is_login‘] = True
        return redirect(reverse(‘index‘))
    return render(request, ‘login.html‘)

# 白名单
WHITE_LIST = [
    r‘^/login/$‘,
    r‘^/reg/$‘,
    r‘^/admin/.*‘,
]
# 免认证的地址  需要登录 不行权限校验
NO_PERMISSION_LIST = [
    ‘/index/‘
]
#权限信息url key
PERMISSION_SESSION_KEY=‘permissions‘
#存放菜单信息
MENU_SESSION_KEY=‘menus‘

        # 获取当前用户的权限
        permission_list = request.session[settings.PERMISSION_SESSION_KEY]
        print(permission_list)
        # 权限的校验
        for i in permission_list:
            if re.match(‘^{}$‘.format(i[‘url‘]), url):
                return
        # 没匹配成功  没有权限
        return HttpResponse(‘没有访问的权限‘)

            <div class="static-menu">
{#                <a href="/customer/list/" class="active">#}
{#                    <span class="icon-wrap"><i class="fa fa-connectdevelop"></i></span> 客户管理</a>#}
{#                <a href="/payment/list/">#}
{#                    <span class="icon-wrap"><i class="fa fa-code-fork"></i></span> 账单管理</a>#}
                {% for item in request.session.menus %}
                    <a href="{{ item.url }}">
                    <span class="icon-wrap"><i class="fa fa-code-fork"></i></span> {{ item.title }}</a>
                {% endfor %}
            </div>

from django import  template
from django.conf import  settings
register=template.Library()
import re
@register.inclusion_tag(‘menu.html‘)
def menu(request):
    menu_list=request.session.get(settings.MENU_SESSION_KEY)
    for item in menu_list:
        url=item[‘url‘]
        if re.match(‘^{}$‘.format(url),request.path_info):
            item[‘class‘]=‘active‘
    return  {‘menu_list‘:menu_list}

            <div class="static-menu">
                {% for item in menu_list%}
                    <a href="{{ item.url }}" class="{{ item.class }}">
                    <span class="icon-wrap"><i class="fa fa-code-fork"></i></span> {{ item.title }}</a>
                {% endfor %}
            </div>

    # 权限的列表
    permission_list = []

    # 菜单的字典
    menu_dict ={}

    for i in permission_query:
        # 把权限的信息放入permission_list
        permission_list.append({‘url‘: i[‘permissions__url‘]})

        menu_id = i.get(‘permissions__menu_id‘)

        if not menu_id:
            continue

        menu_dict.setdefault(menu_id, {
            ‘title‘: i[‘permissions__menu__title‘],
            ‘icon‘: i[‘permissions__menu__icon‘],
            ‘children‘: [

            ]
        })

        menu_dict[menu_id][‘children‘].append({‘title‘: i[‘permissions__title‘], ‘url‘: i[‘permissions__url‘]})