错误：未找到带有参数“（”，）”的“coach_profile”的反向。已尝试 1 种模式：- 无法解决

Question

我正在尝试创建一个基于目录的网站。我创建了一个列表视图，并创建了一个详细视图，当您单击列表视图中的某个项目时会填充该视图。但是，我还想使用类似的详细信息视图在个人资料页面上为用户提供自己的数据。我通过在单独的视图中创建查询集来做到这一点。

问题是，我似乎无法正确配置 url 和模板标签以使其显示在页面上，我只是收到以下错误：

Reverse for 'coach_profile' with arguments '('',)' not found. 1 pattern(s) tried: ['coach/(?P<pk>[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})/profile$']

我正在尝试通过导航栏上名为您的个人资料的链接访问此页面。我正在尝试的模板标签如下

href="{% 'coach_profile' %}">Your Coach Profile</a>
href="{% 'coach_profile' coach.id %}">Your Coach Profile</a>
href="{% 'coach_profile' coach.pk %}">Your Coach Profile</a>

urls.py

from django.urls import path
from .views import CoachListView, CoachDetailView, CoachProfileView

urlpatterns = [
    path('', CoachListView.as_view(), name='coach_list'),
    path('<uuid:pk>', CoachDetailView.as_view(), name='coach_detail'),
    path('<uuid:pk>/profile/', CoachProfileView.as_view(), name='coach_profile'),
    ]

views.py

from django.views.generic import ListView, DetailView
from django.contrib.auth.mixins import LoginRequiredMixin
from .models import Profile


class CoachListView(LoginRequiredMixin, ListView):
    model = Profile
    context_object_name = 'coach_list'
    template_name = 'coach/coach_list.html'
    login_url = 'account_login'


class CoachDetailView(LoginRequiredMixin, DetailView):
    model = Profile
    context_object_name = 'coach_detail'
    template_name = 'coach/coach_detail.html'
    login_url = 'account_login'


class CoachProfileView(LoginRequiredMixin, DetailView):
    model = Profile
    context_object_name = 'coach_profile'
    template_name = 'coach/coach_profile.html'
    login_url = 'account_login'

    def get_queryset(self):
        if self.request.user.is_superuser:
            return Profile.objects.all()
        else:
            return Profile.objects.filter(user=self.request.user)

models.py

from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver
from django.conf import settings
from django.urls import reverse
from django.contrib.auth import get_user_model

import uuid


class Profile(models.Model):
    id = models.UUIDField(
        primary_key=True,
        default=uuid.uuid4,
        editable=False)
    user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    first_name = models.CharField(max_length=30, null=True)
    last_name = models.CharField(max_length=30, null=True)
    bio = models.TextField(max_length=500)
    profile_image = models.ImageField(upload_to='profile_images/', blank=True)

    def __str__(self):
        return '{} {}'.format(self.first_name, self.last_name)

    def get_absolute_url(self):
        return reverse('coach_detail', args=[str(self.id)])


@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)


@receiver(post_save, sender=User)
def save_user_profile(sender, instance, **kwargs):
    instance.profile.save()

Templates (_base.html)

{% if user.is_authenticated %}
<a class="p-2 text-dark" href="{% url 'coach_profile' coach.id %}">Your Coach Profile</a>
<a class="p-2 text-dark" href="{% url 'account_logout' %}">Log Out</a>
{% else %}
<a class="p-2 text-dark" href="{% url 'account_login' %}">Log In</a>
<a class="btn btn-outline-primary" href="{% url 'account_signup' %}">Sign Up</a>
{% endif %}

---

这个之前提出的问题解决了我的疑问。

Django variable in base.html

Answer 1

我不知道此模板与哪个视图相关，但如果此模板与您的 CoachListView 相关，您应该执行以下操作：

{% for obj in coach_list %}
<a class="p-2 text-dark" href="{% url 'coach_profile' obj.id %}">Your Coach Profile</a>
{% endfor %}

因为coach_list 是一个查询集，并且要获取对象的 id，您应该遍历它。