Question

我正在尝试添加到change_friend网址和视图的链接，但我得到一个反向匹配，因为我显然没有传递正确的参数。

这里是friends.urls.py：

from . import views
from django.conf.urls import url



app_name = 'friends'

urlpatterns = [
    # we have 1 url for both adding and losing a friend
    url('connect/<slug:operation>/<int:pk>/', views.change_friends, name='change_friends'),
    # url(r'^connect/(?P<operation>.+)/(?P<pk>\d+)/$', views.change_friends, name='change_friends')
]

这是friends.views.py：

from django.shortcuts import render, redirect
from friends.models import Friend
from django.contrib.auth.models import User




def change_friends(request, operation, pk):
    friend = User.objects.get(pk=pk)
    if operation == 'add':
        Friend.make_friend(request.user, friend)
    elif operation == 'lose':
        Friend.lose_friend(request.user, friend)
    return redirect('groups:index')

这是我在（profile.html）中调用它的模板：

  {% if user in friends %}
          <a href="{% url 'friends:change_friends' 'remove' user_profile.id %}"><button type="button" name="btn btn-warning">UnFriend</button></a>
        {% else %}
          <a href="{% url 'friends:change_friends' 'add' user_profile.id %}"><button type="button" name="btn btn-success">Befriend</button></a>
        {% endif %}

对我来说，看起来我正在传递正确的论据。这是我得到的错误：

NoReverseMatch at /accounts/profile/4
Reverse for 'change_friends' with arguments '('remove', 4)' not found. 1 pattern(s) tried: ['friends\\/connect/<slug:operation>/<int:pk>/']

任何帮助都会非常感激

Answer 1

您正在使用旧路径语法和旧网址方法。将其更改为路径：

path('connect/<slug:operation>/<int:pk>/', ...

无反向匹配错误：无法找到我传入的slu or或主键

1 个答案: