自动发现项目中所有有别名的URL，效果如下：
customer_list {‘name‘: ‘customer_list‘, ‘url‘: ‘/customer/list/‘}
customer_add {‘name‘: ‘customer_add‘, ‘url‘: ‘/customer/add/‘}
customer_edit {‘name‘: ‘customer_edit‘, ‘url‘: ‘/customer/edit/(?P<cid>\\d+)/‘}
customer_del {‘name‘: ‘customer_del‘, ‘url‘: ‘/customer/del/(?P<cid>\\d+)/‘}
customer_import {‘name‘: ‘customer_import‘, ‘url‘: ‘/customer/import/‘}
customer_tpl {‘name‘: ‘customer_tpl‘, ‘url‘: ‘/customer/tpl/‘}
payment_list {‘name‘: ‘payment_list‘, ‘url‘: ‘/payment/list/‘}
payment_add {‘name‘: ‘payment_add‘, ‘url‘: ‘/payment/add/‘}
payment_edit {‘name‘: ‘payment_edit‘, ‘url‘: ‘/payment/edit/(?P<pid>\\d+)/‘}
payment_del {‘name‘: ‘payment_del‘, ‘url‘: ‘/payment/del/(?P<pid>\\d+)/‘}
rbac:role_list {‘name‘: ‘rbac:role_list‘, ‘url‘: ‘/rbac/role/list/‘}
rbac:role_add {‘name‘: ‘rbac:role_add‘, ‘url‘: ‘/rbac/role/add/‘}
rbac:role_edit {‘name‘: ‘rbac:role_edit‘, ‘url‘: ‘/rbac/role/edit/(?P<pk>\\d+)/‘}
rbac:role_del {‘name‘: ‘rbac:role_del‘, ‘url‘: ‘/rbac/role/del/(?P<pk>\\d+)/‘}
rbac:user_list {‘name‘: ‘rbac:user_list‘, ‘url‘: ‘/rbac/user/list/‘}
rbac:user_add {‘name‘: ‘rbac:user_add‘, ‘url‘: ‘/rbac/user/add/‘}
rbac:user_edit {‘name‘: ‘rbac:user_edit‘, ‘url‘: ‘/rbac/user/edit/(?P<pk>\\d+)/‘}
rbac:user_del {‘name‘: ‘rbac:user_del‘, ‘url‘: ‘/rbac/user/del/(?P<pk>\\d+)/‘}
rbac:user_reset_pwd {‘name‘: ‘rbac:user_reset_pwd‘, ‘url‘: ‘/rbac/user/reset/password/(?P<pk>\\d+)/‘}
rbac:menu_list {‘name‘: ‘rbac:menu_list‘, ‘url‘: ‘/rbac/menu/list/‘}
rbac:menu_add {‘name‘: ‘rbac:menu_add‘, ‘url‘: ‘/rbac/menu/add/‘}
rbac:menu_edit {‘name‘: ‘rbac:menu_edit‘, ‘url‘: ‘/rbac/menu/edit/(?P<pk>\\d+)‘}
rbac:menu_del {‘name‘: ‘rbac:menu_del‘, ‘url‘: ‘/rbac/menu/del/(?P<pk>\\d+)‘}
rbac:second_menu_add {‘name‘: ‘rbac:second_menu_add‘, ‘url‘: ‘/rbac/second/menu/add/(?P<menu_id>\\d+)/‘}
rbac:second_menu_edit {‘name‘: ‘rbac:second_menu_edit‘, ‘url‘: ‘/rbac/second/menu/edit/(?P<pk>\\d+)/‘}
rbac:second_menu_del {‘name‘: ‘rbac:second_menu_del‘, ‘url‘: ‘/rbac/second/menu/del/(?P<pk>\\d+)/‘}
rbac:permission_add {‘name‘: ‘rbac:permission_add‘, ‘url‘: ‘/rbac/permission/add/(?P<second_menu_id>\\d+)/‘}
rbac:permission_edit {‘name‘: ‘rbac:permission_edit‘, ‘url‘: ‘/rbac/permission/edit/(?P<pk>\\d+)/‘}
rbac:permission_del {‘name‘: ‘rbac:permission_del‘, ‘url‘: ‘/rbac/permission/del/(?P<pk>\\d+)/‘}
rbac:multi_permissions {‘name‘: ‘rbac:multi_permissions‘, ‘url‘: ‘/rbac/multi/permissions/‘}
一、配置路由
rbac/urls.py
from django.urls import re_path
...
from rbac.views import menu
...
urlpatterns = [
...
# 批量操作权限
re_path(r‘^multi/permissions/$‘, menu.multi_permissions, name=‘multi_permissions‘) # 自动发现项目中的所有URL
...
]
二、自动发现URL功能实现
排除不用发现的URL
settings.py
...
AUTO_DISCOVER_EXCLUDE = [
‘/admin/‘,
‘/login/‘,
]
...
rbac/service/router.py
import re
from collections import OrderedDict
from django.conf import settings
from django.utils.module_loading import import_string # 根据字符串的形式，帮我们去导入模块
from django.urls import URLPattern, URLResolver # 路由分发：URLResolver。非路由分发：URLPattern
def check_url_exclude(url):
"""
排除一些特定的url
:param url:
:return:
"""
for regex in settings.AUTO_DISCOVER_EXCLUDE:
if re.match(regex, url):
return True
def recursion_urls(pre_namespace, pre_url, urlpatterns, url_ordered_dict):
"""
:param pre_namespace: namespace前缀（rbac:xxx)，以后用于拼接name
:param per_url: url的前缀（rbac/xxx）,以后用于拼接url
:param urlpatterns: 路由关系列表
:param url_ordered_dict: 用于保存递归中获取的所有路由
:return:
"""
# 路由分发：URLResolver。非路由分发：URLPattern
for item in urlpatterns:
if isinstance(item, URLPattern): # 非路由分发，将路由添加到url_ordered_dict
if not item.name: # url中反向命名的name，没有的话不做处理，直接跳过。
continue
if pre_namespace: # 如果有命名空间就进行拼接。示例：rbac:role_list
name = f‘{pre_namespace}:{item.name}‘
else:
name = item.name # 示例：role_list
# 判断url有没有前缀，如果有前缀的话我们要给它拼接上，一般url都是有前缀的，因为从根级路由开始我们就加了个/
url = pre_url + item.pattern.regex.pattern # pattern.regex.pattern是拿到当前url django 1.X里是 url._regex
# 拼接完长这样：/^rbac/^user/edit/(?P<pk>\d_+)/$
url = url.replace(‘^‘, ‘‘).replace(‘$‘, ‘‘) # 把起始符和终止符替换成空的，最后得到:/rbac/user/edit/(?P<pk>\d_+)/
if check_url_exclude(url): # 判断是否admin、login等我们不需要的url，是的话直接跳过
continue
url_ordered_dict[name] = {‘name‘: name, ‘url‘: url}
# ‘rbac:menu_list‘:{name:‘rbac:menu_list‘,url:‘xxxxx/yyyy/menu/list‘}
elif isinstance(item, URLResolver): # 路由分发，进行递归操作
if pre_namespace:
"""
# 有前缀 示例：admin 。admin.site.urls的urls的返回值是：
@property
def urls(self):
return self.get_urls(), ‘admin‘, self.name。 返回值的第二个是命名空间
"""
if item.namespace: # 如果有自己的namespace比如说user_list,和前面的pre_namespace进行拼接，结果是rbac:user_list
namespace = f"{pre_namespace}:{item.namespace}"
else:
"""
自己没有namespace，但是父级有，那么namespace就应该是父级的，所以那就直接应该是rbac。
示例：re_path(r‘^role/list/$‘, include(‘xxx.urls‘))。rbac里的一条路由又进行路由分发，但是自己没有命名空间
"""
namespace = item.namespace # 写成namespace = pre_namespace也可以
else:
if item.namespace: # 父级没有namespace，自己有。示例：re_path(r‘^rbac/‘, include((‘rbac.urls‘, ‘rbac‘)), )
namespace = item.namespace
else: # 父级没有namespace，自己也没有
namespace = None
recursion_urls(namespace, pre_url + item.pattern.regex.pattern, item.url_patterns, url_ordered_dict)
"""
pre_url（上一级的url） + item.pattern.regex.pattern（当前路由分发的前缀）,item.url_patterns（当前路由分发的urlpatterns）
拿re_path(r‘^rbac/‘, include((‘rbac.urls‘, ‘rbac‘)))举例：
namespace = rbac, pre_url=/, item.pattern.regex.pattern=^rbac/，item.url_patterns = rbac.urls下的所有url
在django1.x里item.pattern.regex.pattern要换成item.regex.pattern
"""
def get_all_url_dict():
"""
获取项目中所有的URL（必须有name别名）
:return:
"""
url_ordered_dict = OrderedDict()
all_url = import_string(settings.ROOT_URLCONF) # from permission_learn import urls
recursion_urls(None, ‘/‘, all_url.urlpatterns, url_ordered_dict) # 递归的去获取所有的路由。根目录没有namespace，根路由用/
# 得到类似这样的结果：
"""
{
‘rbac:menu_list‘:{name:‘rbac:menu_list‘,url:‘xxxxx/yyyy/menu/list‘}
}
"""
return url_ordered_dict
三、在视图函数引用
rbac/views/menu.py
...
from rbac.service.router import get_all_url_dict
...
...
def multi_permissions(request):
"""
批量操作权限
:param request:
:return:
"""
# 获取项目中所有的url
all_url_dict = get_all_url_dict()
for k, v in all_url_dict.items():
print(k, v)
return HttpResponse(‘ok it‘)
...
以后我们需要在页面展示这些URL，并对其进行增删改和权限操作
原文地址：https://www.cnblogs.com/lshedward/p/10518270.html
时间： 2024-10-24 19:12:01