Django

Question

问题：

Page not found (404) Request Method: GET Request URL: http://127.0.0.1:8000/home/category/coding/ Raised by: blogapp.views.BlogDetailView

urls.py

from django.urls.conf import path
from blogapp.views import BlogDetailView, BlogListView,searchposts,CatListView
from . import views

app_name = "blogapp"
urlpatterns = [
path('', views.BlogListView, name="blogs"),
path('home/search/', views.searchposts, name= "searchposts"),
path('home/category/<slug:_id>/', views.BlogDetailView, name="blog"),
path('home/category/<category>/', views.CatListView.as_view(), name="category"),
]

如果我颠倒这两个

path('home/category/<slug:_id>/', views.BlogDetailView, name="blog"),  
   path('home/category/<category>/', views.CatListView.as_view(), name="category"),

显示类别的html，以及'path('home/category/slug:_id/',views.BlogDetailView的路径, name="blog"),' 未显示，反之亦然

这里是导航栏

的html

      {% for category in category_list %}
      {% if forloop.counter < 4 %}
      <li class="nav-item">
        <a class="nav-link" href="home/category/{{category.name}}">{{ category.name|title }}</a>
      </li>
      {% endif %}
      {% endfor %}

我要渲染的

html

{% extends "_layouts/base.html" %}

{% block css %}
{{block.super}}

{% endblock css %}

{% block page_title %}Insert_your_name_here{% endblock %}

{% load static %} <!-- load the image -->
{% block maincontent %}
<!-- Banner -->
{% block banner %}
{% load static %}
{% include "layout/category_banner.html" %}
{% endblock %}
<!-- Banner Here -->

!-- This is the main template -->
<section class="blog-posts grid-system">
<div class="container">
<div class="row">
  <div class="col-lg-8">
    <div class="all-blog-posts">
      <div class="row">
       {% block categories-main %}
       {% include "layout/category.html" %}
       {% endblock %}
      </div>
    </div>
  </div>
{% block sidebars %}
{% load static %}
{% include "layout/Sidebars.html" %}
{% endblock %}
</div>
</div>
</section>
{% endblock %}

这是我的views.py

def BlogDetailView(request,_id):
try:
    category_list = Category.objects.exclude(name='default')
    dataset = BlogModel.newmanager.all()
    data = BlogModel.newmanager.get(slug =_id)
    comments = CommentModel.objects.filter(blog = data, status=True)
except BlogModel.DoesNotExist:
    raise Http404('Data does not exist')
 
if request.method == 'POST':
    form = CommentForm(request.POST)
    if form.is_valid():
        Comment = CommentModel(your_name= form.cleaned_data['your_name'],
        comment = form.cleaned_data['comment'],
        blog=data)
        Comment.save()
        return redirect(f'/home/category/{_id}')
else:
    form = CommentForm()

context = {
        'data':data,
        'form':form,
        'comments':comments,
        'dataset': dataset,
        "category_list": category_list,
    }
return render(request,'layout/post-details-main.html',context)


def searchposts(request):
dataset = BlogModel.newmanager.all()
if request.method == 'GET':
    query= request.GET.get('q')

    submitbutton= request.GET.get('submit')

    if query is not None:
        lookups= Q(blog_title__icontains=query) | Q(blog__icontains=query)

        results= BlogModel.objects.filter(lookups).distinct()

        context={'results': results,
                 'submitbutton': submitbutton,
                 'dataset': dataset,
                }

        return render(request, 'layout/search-main.html', context)

    else:
        return render(request, 'layout/search-main.html')

else:
    return render(request, 'layout/search-main.html')

class CatListView(ListView):
template_name = 'layout/category-main.html'
context_object_name = 'catlist'

def get_queryset(self):
    content = {
        'cat' : self.kwargs['category'],
        'posts' : 
 BlogModel.objects.filter(category__name=self.kwargs['category']).filter(status='published') 
    } 
    return content

def category_list(request):
category_list = Category.objects.exclude(name='default')
context = {
    "category_list": category_list,
}
return context

它说问题是由 blogapp.views.BlogDetailView 提出的，所以我将其添加到我的 BlogDetailView 将其渲染到我的主 html :

category_list = Category.objects.exclude(name='default')
context = {
    "category_list": category_list,
}

我认为问题出在 link？我的导航栏或 BlogDetailView？，这是什么问题？

Answer 1

你必须接受它作为字符串

这样试试：

path('home/category/<str:category>/', views.CatListView.as_view(), name="category"),

Answer 2

案例已解决，我同时使用了 str 和 slug，所以我的类别与我的 _id 不匹配，需要匹配这两个

path('home/category/<slug:category>/', views.CatListView.as_view(), name="category"),
path('home/category/<slug:_id>/', views.BlogDetailView, name="blog")

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