【发布时间】：2017-07-12 20:27:40
【问题描述】：
我对 Django 非常陌生，并且一直在阅读书中的博客教程：“Django by Example”。
下面的代码应该返回所有状态为“已发布”的博客文章，但它拒绝工作。使用 list.html 代码加载似乎正确的页面，但没有显示任何帖子。我已经仔细检查过，我正在使用状态设置为“已发布”的管理站点创建帖子。我不确定问题是否出在模板、模型、视图或 URL 上，所以我将其全部包含在这里：
模型.py：
from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User
from django.template.defaultfilters import slugify
from django.core.urlresolvers import reverse
#Data model class for creating posts table enrties in database
#Custom manager. Limits returned querysets to ones with published status
class PublishedManager(models.Manager):
def get_queryset(self):
return super(PublishedManager, self).get_queryset()\
.filter(status='published') #super used to call get_queryset method from parent class as it is currently being
#overridden here.
class Post(models.Model):
STATUS_CHOICES = (('draft', 'Draft'), ('published', 'Published'),)
title = models.CharField(max_length=250)
slug = models.SlugField(max_length=250, unique_for_date='publish') #A field for use in building urls
#slug = models.SlugField(slugify(title))
author = models.ForeignKey(User, related_name='blog_posts') #Each post written by a user and a user can write many posts
body = models.TextField()
publish = models.DateTimeField(default=timezone.now)
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)
status = models.CharField(max_length=10, choices=STATUS_CHOICES, default='draft')
objects = models.Manager() #The default manager
published = PublishedManager() #Custom manager
class Meta:
ordering = ('-publish',)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('blog:post_detail', args=[self.publish.year, self.publish.strftime('%m'),self.publish.strftime('%d'), self.slug])
views.py：
from django.shortcuts import render, get_object_or_404
from .models import Post
def post_list(request):
posts = Post.objects.all()
return render(request, 'blog/post/list.html', {'Posts': 'posts'})
def post_detail(request, year, month, day, post):
post = get_object_or_404(Post, slug=post, status='published', publish__year=year, publish__month=month, publish__day=day)
return render(request, 'blog/post/detail.html', {'post':post})
URLs.py
from django.conf.urls import url
from . import views
urlpatterns = [
# post views
url(r'^$', views.post_list, name='post_list'),
url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/'\
r'(?P<post>[-\w]+)/$', views.post_detail, name='post_detail'),
模板base.html：
{% load staticfiles %}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>{% block title %}{% endblock %}</title>
<link href="{% static "css/blog.css" %}" rel="stylesheet">
</head>
<body>
<div id="content">
{% block content %}
{% endblock %}
</div>
<div id="sidebar">
<h2>My Site site</h2>
<p>This site is all about me</p>
</div>
</body>
</html>
detail.html:
{% extends "blog/base.html" %}
{% block title %}My Blog{% endblock %}
{% block content %}
<h1>Blog</h1>
{% for post in posts %}
<h2>
<a href="{{ post.get_absolute_url }}">
{{ post.title }}
</a>
</h2>
<p class="date">Published{{ post.publish }} by {{ post.author }}</p>
{{ post.body|truncatewords:30|linebreaks }}
{% endfor %}
{% endblock %}
【问题讨论】：
-
您能否将您的 URLS.py、模板、模型和views.py 分成单独的框？很难分辨是哪个文件。