【发布时间】：2020-04-22 05:41:47
【问题描述】：
我是 django 的新手，我正在开发一个博客应用程序并尝试为帖子启用 cmets。当我从管理页面编写 cmets 时，一切正常，但作为用户，我收到以下错误：'WSGIRequest' 对象没有属性'post'。搜索类似的问题我看到大多数人将 request.Post 切换为 request.POST 但我的代码中没有，我将 view for comment 写为一个类而不是 def comment(request)... 我该如何解决这个问题？
views.py 中的代码：
class PostDetailView(DetailView):
model = Post
class PostCreateView(LoginRequiredMixin, CreateView):
model = Post
fields = [title, summary, content, image]
def form_valid(self, form):
form.instance.author= self.request.user
return super().form_valid(form)
class CommentCreateView(LoginRequiredMixin, CreateView):
model = Comment
fields = ['content']
def form_valid(self, form):
form.instance.user = self.request.user
form.instance.post = self.request.post
return super().form_valid(form)
models.py 中的代码：
class Comment(models.Model):
post = models.ForeignKey(Post, related_name='comments', on_delete=models.CASCADE)
user = models.ForeignKey(User, on_delete=models.CASCADE)
content = models.TextField()
created = models.DateTimeField(auto_now_add=True)
class Meta:
ordering = ['created']
def save(self, *args, **kwargs):
super().save(*args, **kwargs)
def __str__(self):
return 'Comment of user {}: {}'.format(self.user, self.content)
class Post(models.Model):
title= models.CharField(max_length=100)
summary= models.TextField(max_length=200, default='defalut text ...')
content= models.TextField()
image= models.ImageField(default='default.png', upload_to='post_pics')
date_posted = models.DateTimeField(default=timezone.now)
author = models.ForeignKey(User, on_delete=models.CASCADE)
def save(self, *args, **kwargs):
super().save(*args, **kwargs)
img = Image.open(self.image.path)
img.save(self.image.path)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('post-detail', kwargs={'pk': self.pk})
来自 post_detail.html：
{% extends "recepti/base.html" %}
{% block content %}
<article class="media content-section">
<img class="rounded-circle article-img" src="{{ object.author.profile.image.url }}">
<div class="media-body">
<div class="article-metadata">
<a class="mr-2" href="{% url 'user-posts' object.author.username %}">{{ object.author }}</a>
<small class="text-muted">{{ object.date_posted|date:"F d, Y" }}</small>
<small class="">{{ object.comments.count }}</small> <i class="fa fa-comment"></i>
<small>0</small> <i class="fa fa-heart"></i><br>
{% if object.author == user %}
<div>
<a class="btn btn-secondary btn-sm mt-1 mb-1" href="{% url 'post-update' object.id %}">Update</a>
<a class="btn btn-danger btn-sm mt-1 mb-1" href="{% url 'post-delete' object.id %}">Delete</a>
</div>
{% endif %}
</div>
<h2 class="article-title">{{ object.title}}</h2>
<p class="article-title">{{ object.summary}}</p>
<img src="{{ object.image.url }}">
<p class="article-content">{{ object.content}}</p>
<div class="btn-group" role="group" aria-label="Basic example">
<button type="button" class="btn btn-secondary">Like</button>
<a class="nav-item nav-link" href="{% url 'post-comment' %}">New comment</a>
</div>
<hr>
{% for comment in object.comments.all %}
<h5>{{ comment.user }}</h5>
<h6>{{ comment.created }}</h6>
<p>{{ comment.content }}</p>
{% empty %}
<p> No comments</p>
{% endfor %}
</div>
</article>
{% endblock content %}
来自 urls.py 的代码：
urlpatterns = [
path('', PostListView.as_view(), name='recepti-home'),
path('user/<str:username>', UserPostListView.as_view(), name='user-posts'),
path('post/<int:pk>/', PostDetailView.as_view(), name='post-detail'),
path('post/new/', PostCreateView.as_view(), name='post-create'),
path('post/<int:pk>/update/', PostUpdateView.as_view(), name='post-update'),
path('post/<int:pk>/delete/', PostDeleteView.as_view(), name='post-delete'),
path('post/comment/', CommentCreateView.as_view(), name='post-comment'),
path('about/', views.about, name='recepti-about')
]
comment_form.html 中的代码：
{% extends "recepti/base.html" %}
{% load crispy_forms_tags %}
{% block content %}
<div class="content-section">
<form method="POST">
{% csrf_token %}
<fieldset class="form-group">
<legend class="border-bottom mb-4">New comment</legend>
{{ form|crispy }}
</fieldset>
<div class="form-group">
<button class="btn btn-outline-info" type="submit">Submit</button>
</div>
</form>
</div>
{% endblock content %}
【问题讨论】：
-
django 怎么知道你在评论哪个帖子？
-
@bmons 我认为这是如何将评论链接到帖子？ ---> 在视图中：form.instance.post = self.request.post 和在模型中：post = models.ForeignKey(Post, related_name='cmets', on_delete=models.CASCADE)
标签： python django post comments blogs