python - NoReverseMatch at / 实现注释选项时出错
问题描述
我正在尝试为 django 社交媒体应用程序实现评论选项,但在 / 错误时出现 NoReverseMatch。
NoReverseMatch at / Reverse for 'post-detail' with arguments '(10,)' 未找到。尝试了 1 种模式:['post/int:pk/$']
我已阅读什么是 NoReverseMatch 错误,我该如何解决?我知道它似乎找不到 post_detail.html 的网址。我查了很多类似的问题,但我找不到任何对我的案子有帮助的东西。我正在关注本教程:https ://towardsdatascience.com/build-a-social-media-website-with-django-feed-app-backend-part-4-d82facfa7b3
我试图改变我在 urls.py 中声明我的网址的方式,但到目前为止似乎没有任何效果。我包括相关的 python 和 html 文件,已编辑长度。
网址.py
from django.conf.urls import url, include
from myapp import views as core_views
from django.contrib.auth.views import LoginView, LogoutView
from django.contrib import admin
urlpatterns = [
url(r'^$', core_views.PostListView.as_view(), name ='home'),
url(r'^post/<int:pk>/$', core_views.post_detail, name='post-detail']
视图.py
...
@login_required
def post_detail(request, pk):
post = get_object_or_404(Post, pk=pk)
user = request.user
is_liked = Like.objects.filter(user=user, post=post)
if request.method == 'POST':
form = NewCommentForm(request.POST)
if form.is_valid():
data = form.save(commit=False)
data.post = post
data.username = user
data.save()
return redirect('post-detail', pk=pk)
else:
form = NewCommentForm()
return render(request, 'feed/post_detail.html',{'post':post, 'is_liked':is_liked, 'form':form})
...
主页.html
{% extends 'base.html' %}
...
{% for post in posts %}
<div class="card card-signin my-5">
<div class="card-body">
<a href="{{ post.user_name.profile.get_absolute_url }}"></a>
<a class="text-dark" href="{{ post.user_name.profile.get_absolute_url }}"><b>{{ post.user_name }}</b></a>
<br><small class="text-muted">Posted on {{ post.date_posted }}</small>
<br><br>
<p class="card-text text-dark">{{ post.description }}</p>
</div>
<a href="{% url 'post-detail' post.id %}"></a><img class="card-img-top" src="{{post.pic.url}}" alt="Picture not found"></a>
{% if post.tags %}
<br>
<p class="text-danger ml-3"><b>Tags: <i>{{ post.tags }}</i></b></p>
{% endif %}
<div class="card-footer">
<a class="btn btn-outline-info" href="{% url 'post-detail' %}">Comments | {{ post.details.count }}</a>
</div>
</div>
{% endfor %}
...
模型.py
...
class Post(models.Model):
description = models.CharField(max_length=255, blank=True)
pic = models.ImageField(upload_to='static/images')
date_posted = models.DateTimeField(default=timezone.now)
user_name = models.ForeignKey(User, on_delete=models.CASCADE)
tags = models.CharField(max_length=100, blank=True)
def __str__(self):
return self.description
def get_absolute_url(self):
return reverse('post-detail', kwargs={'pk': self.pk})
...
最后是错误跟踪
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/
Django Version: 3.1.7
Python Version: 3.9.1
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework',
'pigeonpost',
'crispy_forms']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Template error:
In template myProject\backend\pigeonpost\templates\base.html, error at line 0
Reverse for 'post-detail' with arguments '(10,)' not found. 1 pattern(s) tried: ['post/<int:pk>/$']
1 : <!DOCTYPE html>
2 : <html lang="en">
3 : <head>
4 : <meta name="viewport" content="width=device-width, initial-scale=1">
5 : <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
6 : <meta charset="UTF-8">
7 : <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
8 : <meta charset="utf-8">
9 : <title>{% block title %}PigeonPost{% endblock %}</title>
10 : </head>
Traceback (most recent call last):
File "myProject\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
response = get_response(request)
File "myProject\lib\site-packages\django\core\handlers\base.py", line 204, in _get_response
response = response.render()
File "myProject\lib\site-packages\django\template\response.py", line 105, in render
self.content = self.rendered_content
File "myProject\lib\site-packages\django\template\response.py", line 83, in rendered_content
return template.render(context, self._request)
File "myProject\lib\site-packages\django\template\backends\django.py", line 61, in render
return self.template.render(context)
File "myProject\site-packages\django\template\base.py", line 170, in render
return self._render(context)
File "myProject\lib\site-packages\django\template\base.py", line 162, in _render
return self.nodelist.render(context)
File "myProject\lib\site-packages\django\template\base.py", line 938, in render
bit = node.render_annotated(context)
File "myProject\lib\site-packages\django\template\base.py", line 905, in render_annotated
return self.render(context)
File "myProject\lib\site-packages\django\template\loader_tags.py", line 150, in render
return compiled_parent._render(context)
File "myProject\lib\site-packages\django\template\base.py", line 162, in _render
return self.nodelist.render(context)
File "myProject\lib\site-packages\django\template\base.py", line 938, in render
bit = node.render_annotated(context)
File "myProject\lib\site-packages\django\template\base.py", line 905, in render_annotated
return self.render(context)
File "myProject\lib\site-packages\django\template\loader_tags.py", line 62, in render
result = block.nodelist.render(context)
File "myProject\lib\site-packages\django\template\base.py", line 938, in render
bit = node.render_annotated(context)
File "myProject\lib\site-packages\django\template\base.py", line 905, in render_annotated
return self.render(context)
File "myProject\lib\site-packages\django\template\defaulttags.py", line 211, in render
nodelist.append(node.render_annotated(context))
File "myProject\lib\site-packages\django\template\base.py", line 905, in render_annotated
return self.render(context)
File "myProject\lib\site-packages\django\template\defaulttags.py", line 446, in render
url = reverse(view_name, args=args, kwargs=kwargs, current_app=current_app)
File "myProject\lib\site-packages\django\urls\base.py", line 87, in reverse
return iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs))
File "myProject\lib\site-packages\django\urls\resolvers.py", line 685, in _reverse_with_prefix
raise NoReverseMatch(msg)
Exception Type: NoReverseMatch at /
Exception Value: Reverse for 'post-detail' with arguments '(10,)' not found. 1 pattern(s) tried: ['post/<int:pk>/$']
任何事情都会有很大帮助!谢谢你。
解决方案
我已经解决了我的问题!我需要改变我调用我的网址的方式,因为它是旧方式。
path('post/<int:pk>/', core_views.post_detail, name='post-detail')
这是正确的做法。
推荐阅读
- python - 将多个命令写入子进程
- discord.js - guild.createChannel 不起作用,我不知道为什么
- java - Android onBackPressed 适用于所有活动
- javascript - 错误:拒绝在框架中显示“https://beta.app.com”,因为它将>“X-Frame-Options”设置为“sameorigin”
- java - 如果不是,我该如何优化以下内容?
- ios - iOS 13 导航栏样式:设备和模拟器之间的巨大差异
- pandas - 基于条件的随机数据生成 pandas 和 numpy
- php - 如何使用按日期和用户名分隔的while循环添加列的不同值(行)
- css - SCSS:更改父母的另一个孩子的可见性
- math - 查找涉及对数总和的大 O