Django Reverse for '' 未找到。 '' 不是有效的视图函数或模式名称

问题描述 投票：0回答：1

我收到错误“

Django Reverse for '' not found. '' is not a valid view function or pattern name.
”。我正在寻找解决此问题的方法，但找不到 urls.py 和views.py、home.html 和 atrakcja_details.html 位于同一个应用程序同一个文件夹中的任何内容。

urls.py：

from django.urls import path

from . import views
urlpatterns = [
    path('atrakcja_details/<int:atrakcja_id>/', views.atrakcja_details, name='atrakcja_details'),
    path('about/', views.about_page, name='about'),
]

views.py：

from django.shortcuts import render, get_object_or_404
from .models import Atrakcja
from django.http import HttpResponse

def atrakcja_details(request, atrakcja_id):  # Add atrakcja_id parameter
    if atrakcja_id:
        atrakcja = get_object_or_404(Atrakcja, id=atrakcja_id)
        return render(request, 'atrakcja_details.html', {'atrakcja': atrakcja})
    else:
        return HttpResponse("Atrakcja not found.")
def about_page(request):
    return render(request, 'about/about.html')

home.html：

<a href="{% url 'atrakcja_details' atrakcja_id=atrakcja.id_atrakcji %}">

我尝试过使用名称空间，但它仍然不起作用，我没有拼写任何错误。也许urls.py内部有问题？

追溯：

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/

Django Version: 5.0.4
Python Version: 3.12.3
Installed Applications:
['TrasexApp.apps.TrasexappConfig',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'accounts']
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 C:\Users\Kacper\Documents\GitHub\ProjektSzkieletuwa\Trasex\TrasexApp\templates\home.html, error at line 125
   Reverse for 'atrakcja_details' not found. 'atrakcja_details' is not a valid view function or pattern name.
   115 :       <button type="submit">Log Out</button>
   116 :     </form>
   117 :   </div>
   118 :   
   119 : </div>
   120 : <p style="margin-top: 55; text-transform: uppercase; text-align: center; font-family: Roboto; font-weight: 600; color: #212529; font-size: 30;">Hello, {{user.username}}</p>
   121 : <div class="container">
   122 : {%for atrakcja in atrakcje%}
   123 : 
   124 :   <div class="card">
   125 :     <a href=" {% url 'atrakcja_details' atrakcja_id=atrakcja.id_atrakcji %} ">
   126 :       <div class="card-img">
   127 :       <img src={{atrakcja.zdjecie_jpeg.url}} />
   128 :     </div>
   129 :     <div class="card-body">
   130 :       <h2 style="color: #ced4da; font-weight: 900;" class="card-title">
   131 :         {{atrakcja.nazwa}}
   132 :       </h2>
   133 :       <p style="color: #ced4da;" class="card-intro">
   134 :         {{atrakcja.opis}}
   135 :       </p>


Traceback (most recent call last):
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\core\handlers\exception.py", line 55, in inner
    response = get_response(request)
               ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\core\handlers\base.py", line 220, in _get_response
    response = response.render()
               ^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\response.py", line 114, in render
    self.content = self.rendered_content
                   ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\response.py", line 92, in rendered_content
    return template.render(context, self._request)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\backends\django.py", line 61, in render
    return self.template.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 171, in render
    return self._render(context)
           ^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 163, in _render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 1000, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 961, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\loader_tags.py", line 159, in render
    return compiled_parent._render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 163, in _render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 1000, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 961, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\loader_tags.py", line 65, in render
    result = block.nodelist.render(context)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 1000, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 961, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\defaulttags.py", line 326, in render
    return nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 1000, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 961, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\defaulttags.py", line 242, in render
    nodelist.append(node.render_annotated(context))
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\base.py", line 961, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\template\defaulttags.py", line 479, in render
    url = reverse(view_name, args=args, kwargs=kwargs, current_app=current_app)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\urls\base.py", line 88, in reverse
    return resolver._reverse_with_prefix(view, prefix, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Kacper\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0\LocalCache\local-packages\Python312\site-packages\django\urls\resolvers.py", line 851, in _reverse_with_prefix
    raise NoReverseMatch(msg)
    ^^^^^^^^^^^^^^^^^^^^^^^^^

Exception Type: NoReverseMatch at /
Exception Value: Reverse for 'atrakcja_details' not found. 'atrakcja_details' is not a valid view function or pattern name.
python html django web
1个回答
0
投票

这可能是由于您的 URL 解析不正确，特别是您表示 

atrackcja_id
参数的方式是 int。应该是：

urlpatterns = [ path('atrakcja_details/<int:atrakcja_id>/', views.atrakcja_details, name='atrakcja_details'), path('about/', views.about_page, name='about'), ]

https://docs.djangoproject.com/en/4.1/ref/urls/

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