如何使用URL Python Django
如何使用URL Python Django
提问于 2020-04-18 15:01:37
我正试图用Antonio的书“"Example_Build_powerful_and_reliable_Python_web_applications”“学习Python。真的很抱歉回答了一些愚蠢的问题，但我是个新手。对不起，我的英语不是我的母语。
书中的一个例子有一些问题。做同样的事情，在书中，但URL的不工作。
MODELS.PY
from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User
from django.urls import reverse
class PublishedManager(models.Manager):
def get_queryset(self):
return super(PublishedManager, self).get_queryset().filter(status='published')
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')
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()
published = PublishedManager()
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.month,
self.day, self.slug])VIEWS.PY
from django.shortcuts import render, get_object_or_404
from .models import Post
def post_list(request):
posts = Post.published.all
return render(request,
'blog/post/list.html',
{'posts': posts})
def post_detail(request, post):
post = get_object_or_404(Post, slug = post)
return render(request, 'blog/post/detail.html', {'post': post})URLS.PY
from django.urls import path
from . import views
app_name ='blog'
urlpatterns = [
path('', views.post_list, name='post_list'),
path('<int:year>/<int:month>/<int:day>/<slug:post>/',
views.post_detail,
name='post_detail'),
]BASE.HTML
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>{% block title %} {% endblock %}</title>
</head>
<body>
<div id="content">
{% block content %}
{% endblock %}
</div>
<div id="sidebar">
<h2>My Blog</h2>
<p>This is my blog</p>
</div>
</body>
</html>LIST.HTML
{% extends "blog/base.html" %}
{% block title %}My blog{% endblock%}
{% block content %}
<h1>My 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 %}DETAIL.HTML
{% extends "blog/base.html" %}
{% block title %} {{ post.title }} {% endblock %}
{% block content %}
<h1> {{ post.title }} </h1>
<p class = "date">
Published {{ post.publish }} by {{ post.author }}
</p>
{{ post.body|linebreaks }}
{% endblock %}还将我的urls添加到这里的URLS：在这里输入图像描述
问题是:当我点击BASE.HTML页面上的帖子时，我没有看到正确的URL，什么也没有发生：在这里输入图像描述真的打破了我的大脑。提前谢谢你的帮助。
回答 2
Stack Overflow用户
发布于 2020-04-18 15:17:36
您的VIEWS.py应该包含方法post(self，request)或get(self，request)，以便从呈现的HTML中调用。方法post_list(..)或post_detail(.)在Django框架上不能调用。
Stack Overflow用户
发布于 2020-04-19 13:32:02
哦，我的f...ng上帝。
如果有人会面临同样的问题。
In MODELS.PY只需移动类Meta和2 defs：
from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User
from django.urls import reverse
class PublishedManager(models.Manager):
def get_queryset(self):
return super(PublishedManager, self).get_queryset().filter(status='published')
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')
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()
published = PublishedManager()
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.month,
self.day, self.slug])然后在威尔工作很好。非常愚蠢的错误，很难找到这个。
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原文链接：
https://stackoverflow.com/questions/61291283
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