我有一个django博客网站。它包含两个应用程序:
blog
和
pages
.
博客应用程序列出了以下所有博客项目:
模型:
class News(models.Model):
title = models.CharField(max_length=255)
body = models.TextField()
date = models.DateTimeField(auto_now_add=True)
author = models.ForeignKey(
get_user_model(),
on_delete=models.CASCADE,
)
thumb = models.ImageField(blank=True, null=True)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('news_detail', args=[str(self.id)])
VIEW
class NewsListView(ListView):
model = News
template_name = 'news_list.html'
新闻列表
{% extends 'base.html' %}
{% block title %}News{% endblock title %}
{% block content %}
{% for news in object_list %}
<div class="card" style="width: 300px; display: inline-block; margin: 5px; vertical-align: top;">
<div class="card-header">
<span class="font-weight-bold">
<a href="{% url 'news_detail' news.pk %}" style="color:black">{{ news.title }}</a>
</span> ·
<span class="text-muted">by {{ news.author }} | {{ news.date }}</span>
</div>
<div class="card-body">
{% if news.thumb %}
<p align="center"><img src="{{ news.thumb.url }}" /></p>
{% endif %}
<p>{{ news.body | linebreaks | truncatewords:30 }}
<a href="{% url 'news_detail' news.pk %}">Full story</a></p>
</div>
<div class="card-footer">
{% if user.is_authenticated %}
<a href="{% url 'news_edit' news.pk %}">Edit</a>
<a href="{% url 'news_delete' news.pk %}">Delete</a>
{% endif %}
</div>
</div>
{% endfor %}
{% endblock content %}
我的页面应用程序有home.html:
{% extends 'base.html' %}
{% block title %}Home{% endblock title %}
{% block content %}
<div class="jumbotron">
<h1 class="display-4">Lakeland Cycle Club</h1>
<p class="lead">The home of cycling in Fermanagh.</p>
<p class="lead">
<a class="btn btn-primary btn-lg" href="{% url 'news_list' %}" role="button">View All Club News</a>
</p>
</div>
{% endblock content %}
查看:
class HomePageView(TemplateView):
template_name = 'home.html'
我在书页上没有模型。
我能用什么方法吗
NewsListView
从“我的博客”应用程序显示主页中的3个最新条目,还是必须在“我的网页”应用程序中创建类似的模型和视图才能获取博客条目?
我试过这个:
页面/视图
from news.models import News
class HomePageView(TemplateView):
model = News
template_name = 'home.html'
queryset = News.objects.order_by('-date')[:3]
首页
{% extends 'base.html' %}
{% block title %}Home{% endblock title %}
{% block content %}
<div class="jumbotron">
<h1 class="display-4">Lakeland Cycle Club</h1>
<p class="lead">The home of cycling in Fermanagh.</p>
<p class="lead">
<a class="btn btn-primary btn-lg" href="{% url 'news_list' %}" role="button">View All Club News</a>
</p>
<span class="font-weight-bold">
<a href="{% url 'news_detail' news.pk %}" style="color:black">{{ news.title }}</a>
</span>
</div>
{% endblock content %}
但是,当我尝试访问主页时,我会得到:
File "/Users/paulcarron/.local/share/virtualenvs/lakelandcc-6nBitmwo/lib/python3.7/site-packages/django/urls/resolvers.py", line 622, in _reverse_with_prefix
raise NoReverseMatch(msg)
django.urls.exceptions.NoReverseMatch: Reverse for 'news_detail' with arguments '('',)' not found. 1 pattern(s) tried: ['news/(?P<pk>[0-9]+)/$']
我想这是因为我在news/models.py:
def get_absolute_url(self):
return reverse('news_detail', args=[str(self.id)])