自定义转换器

 1 from django.urls import path,register_converter
 2 from app01 import views
 3 
 4 class MyCon:
 5     regex=‘[0-9]{4}‘
 6     def to_python(self,value):
 7         return int(value)
 8     def to_url(self,value):
 9         return ‘%04d‘ % value
10 
11 register_converter(MyCon,‘aa‘)
12 
13 urlpatterns = [
14     path(‘admin/‘, admin.site.urls),
15     path(‘test/<aa:year>‘, views.test,name=‘test‘),
16 ]

1 from django.shortcuts import render,HttpResponse,reverse
2 
3 
4 def test(request,year):
5     print(year)
6     print(type(year))
7     url=reverse(‘test‘,args=(5,))
8     print(url)
9     return HttpResponse(‘ok‘)