Django

Question

我的主页上有 post 列表，它们是 post DetailView 的链接。链接工作正常，但是当我转到 DetailView 时，列表不再可见 - 我必须返回主页才能选择其他 post。显示 posts 列表的元素位于 base.html，正确地将对象列表传递给 home.html，而在 post_detail.html 列表中是空的。

Homepage looks like this

Post DetailView looks like this - posts list is no more visible

Inspect view on homepage

Inepect view on DetailView - ul element is empty

base.html

<body>
<div>
    <ul>
        <li>
            <a href="{% url 'blog-home' %}"> home</a>
        </li>

        <li>
            <a> items</a>
            <ul>
                {% for post in posts %}
                <li>
                    <a href="{% url 'post-detail' post.id %}"> {{ post.title }}</a>
                </li>
                {% endfor %}
            </ul>
        </li>       
    </ul>

</div>
<di>
{% block content %}
{% endblock content %}
</div>
</body>

home.html

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

{% block content %}
{% for post in posts %}
    <div>
        <a href="#">{{post.title}}</a>
        <p>{{post.content}}</p>
        <p>{{post.date_posted}}</p>
    </div>
{% endfor %}
{% endblock content %}

post_detail.html

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

{% block content %}
    <div>
        <a href="#">{{object.title}}</a>
        <p>{{object.content}}</p>
    </div>
{% endblock content %}

urls.py

from django.urls import path
from .views import PostListView, PostDetailView
from . import views



urlpatterns = [
    path('', PostListView.as_view(), name='blog-home'),
    path('post/<int:pk>/', PostDetailView.as_view(), name='post-detail'),
]

views.py

from django.shortcuts import render
from django.views.generic import ListView, DetailView
from .models import Post

class PostListView(ListView):
    model = Post
    template_name = 'blog/home.html'  
    context_object_name = 'posts'

class PostDetailView(DetailView):
    model = Post

models.py

from django.db import models


class Post(models.Model):
    title = models.CharField(max_length=100)
    content = models.TextField()

    def __str__(self):
        return self.title

Answer 1

您必须覆盖仅显示当前实例数据的 DetailView 上下文。

class PostDetailView(DetailView):
    model = Post

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['other_posts'] = Post.objects.all()
        return context

Django - 在 DetailView 中不可见的对象列表

Django - list of objects not visible in DetailView

python

django-views

django-templates

django-urls