django crm 左侧二级菜单栏

约定不等于承诺〃 2022-01-06 16:25 257阅读 0赞

1.如何生成二级菜单栏

在 rbca表中生成一张表 menu ， 表示可能需要给客户展示的一级菜单栏

在permission表中 ，创建字段，通过多对一外键关系，关联到menu表，表示哪些permission要在二级菜单栏显示，显示到哪个一级菜单栏下面

在initial\_session 权限注入的时候，注入一个字典 permission\_menu\_dict > 格式如下：

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'''目标数据结构
            {
                1:{  # 1--menu_id
                    'title':'..',
                    'icon':'xx',
                    children:[
                        {
          'title':'二级','url':'xx'},
                        {
          'title':'二级','url':'xx'},
                    ]
                },
                2:{  # 2--menu_id
                    'title':'..',
                    'icon':'xx',
                    children:[
                        {
          'title':'二级','url':'xx'},
                        {
          'title':'二级','url':'xx'},
                    ]
                }
                
            }
            
        '''

rbac.py

在自定义标签中循环该字典生成标签

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from django import template
    from django.urls import reverse
    register = template.Library()
    
    from django.conf import settings
    import re
    
    @register.inclusion_tag('rbac/menu.html')
    def menu(request):
        # menu_list = request.session.get('permisson_menu_list')
        menu_dict= request.session.get('permisson_menu_dict')
        for key,item in menu_dict.items():
            item['class'] = 'hide'
    
            for child in item['children']:
                # /customer/add/
                # 'url': '/customer/list/'
                # 'url': '/payment/list/'
                # # if re.match('^{}$'.format(child['url']), request.path):
                if request.show_id == child['pk']:
                    # null == child['pk'] 1
    
                    item['class'] = ''
                    child['class'] = 'active'
                    break
    
    
        return {
         "menu_dict": menu_dict}
    
    
    
    @register.filter
    def haspermission(base_url,request):
    
    
        for item in request.session['permisson_list']:
            #item = {
         'url','','title':'','name':''}
            reg = '^%s$' % item['url']  #/customer/edit/(\d+)/ --- "/customer/edit/
            # /"
            ret = re.search(reg, base_url)
            # if item['name'] == base_url:
            if ret:
                return True
    
        return False

rbac.py

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from django.db import models
    
    class Menu(models.Model):
    
        title = models.CharField(max_length=32, verbose_name='一级菜单', null=True, blank=True)
        icon = models.CharField(max_length=32, verbose_name='一级菜单图标', null=True, blank=True)
    
    
    
    class Permission(models.Model):
        """
        权限表
        """
        title = models.CharField(max_length=32, verbose_name='标题')
        url = models.CharField(max_length=32, verbose_name='权限')
    
        # is_menu = models.BooleanField(default=False, verbose_name='是否是菜单')
        menu = models.ForeignKey('Menu',null=True)
    
        pid = models.ForeignKey('self',null=True)
    
        class Meta:
            verbose_name_plural = '权限表'
            verbose_name = '权限表'
        
        def __str__(self):
            return self.title
    
    
    class Role(models.Model):
        name = models.CharField(max_length=32, verbose_name='角色名称')
        permissions = models.ManyToManyField(to='Permission', verbose_name='角色所拥有的权限', blank=True)
        
        def __str__(self):
            return self.name
    
    
    class User(models.Model):
        """
        用户表
        """
        name = models.CharField(max_length=32, verbose_name='用户名')
        password = models.CharField(max_length=32, verbose_name='密码')
        roles = models.ManyToManyField(to='Role', verbose_name='用户所拥有的角色', blank=True)
        
        def __str__(self):
            return self.name

models.py

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from rbac import models
    
    def initial_session(request,user_obj):
        permission_obj = models.Permission.objects.filter(role__user=user_obj).values('title','url','pk','menu_id','menu__title','menu__icon').distinct()
        # print(permission_obj)
    
        permission_list = []
        permission_menu_dict = {}
        for item in permission_obj:
    
            permission_list.append(item['url'])
            if item['menu_id']:
                if item['menu_id'] not in permission_menu_dict:
                    permission_menu_dict[item['menu_id']] = {
         'title':item['menu__title'],'icon':item['menu__icon'],'children':[{
         'title':item['title'],'url':item['url']}]}
                else:
                    permission_menu_dict[item.menu_id]['children'].append({
         'title':item['title'],'url':item['url']})
    
    
    
        # permission_list = [i.url for i in permission_obj]
        request.session['permission_list'] = permission_list
        request.session['permission_menu_dict'] = permission_menu_dict
        print(permission_menu_dict)
    
    
    
        '''
        1. 循环生成2级菜单
            生成一个字典
              permission_menu_dict  =  { 
                1:{}
              }
        
        
        
        
        '''

permission\_input

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<div class="static-menu">
    
    {
          #    {% for item in menu_list %}#}
    {
         #        {% if item.active %}#}
    {
         #            <a href="{
          { item.url }}" class="{
          { item.class }} active">#}
    {
         #            <span class="icon-wrap"><i class="fa {
          { item.icon }}"></i></span> {
          { item.title }}</a>#}
    {
         #        {% else %}#}
    {
         #            <a href="{
          { item.url }}" class="{
          { item.class }} ">#}
    {
         #            <span class="icon-wrap"><i class="fa {
          { item.icon }}"></i></span> {
          { item.title }}</a>#}
    {
         #        {% endif %}#}
    {
         ##}
    {
         ##}
    {
         #    {% endfor %}#}
            {% for item in menu_list.values %}
    
            <div class="item">
                <div class="title">
                    <i class="{
          { item.icon }}"></i>{
          { item.title }}
                </div>
                {
          % for child in item.children %}
                    <div class="body {
          { item.class }}">
                        <a href="{
          { child.url }}" class="{
          { child.class }}">{
         { child.title }}</a>
                    </div>
                {
          % endfor %}
    
            </div>
    
        {
          % endfor %}
    </div>

menu.html

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layout.html

转载于:https://www.cnblogs.com/zhangjian0092/p/11046411.html

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