提交后，django中没有显示评论

Question

我试图从应用程序而不是django管理员提交评论。从我创建的应用程序提交时不显示评论。但当我从django管理应用程序添加评论时，它就会显示出来。可能是我在views.py文件中做错了什么。有人能帮我吗？非常感谢。views.py:

@login_required
def book_review(request,id):
book = get_object_or_404(Bookslist, id=id)
comment=Comment.objects.all().filter(post_id=id)
if request.method == 'POST':
form = CommentForm(request.POST)
if form.is_valid():
post = form.save(commit=False)
post.user_id = request.user
post.message= comment
post.save()
return redirect('book_review', id=id)
else:
form=CommentForm()
return render(request, "books/book_review.html", {'book':book, 'comment':comment, 'form': form})

models.py:

class Comment(models.Model):
message= models.TextField('Message',null=True)
date_comment=models.DateTimeField(default=now, null=True)
user_id= models.ForeignKey(User, on_delete=models.CASCADE,null=True)
post_id=models.ForeignKey(Bookslist,on_delete=models.CASCADE,null=True)

forms.py:

from django import forms 
from .models import Comment 
class CommentForm(forms.ModelForm):
class Meta:
model = Comment
fields = ['message', ]

book_review.html:

{% extends 'books/base.html' %}
{% load static %}
{% block stylesheet %}
<link rel="stylesheet" href="{% static 'accounts/accounts.css' %}">
{% endblock %}
{% block content %}
<div class = "container">
<ul class = "nav nav-tabs" id = "myTab" role = "tablist">
<li class = "nav-item">
<a class = "nav-link active" id = "summary-tab" data-toggle = "tab" 
href = "#summary" role = "tab" aria-controls = "summary" 
aria-selected = "true">Summary</a>
</li>
<li class = "nav-item">
<a class = "nav-link" id = "characters-tab" data-toggle = "tab" 
href = "#characters" role = "tab" aria-controls = "characters" 
aria-selected = "false">Characters</a>
</li>
<li class = "nav-item">
<a class = "nav-link" id = "relatedbooks-tab" data-toggle = "tab" 
href = "#relatedbooks" role = "tab" aria-controls = "relatedbooks" 
aria-selected = "false">Related Books</a>
</li>
</ul>
<div class = "tab-content" id = "myTabContent">
<div class = "tab-pane fade show active" id = "summary" role = "tabpanel" 
aria-labelledby = "summary-tab"><br><br>
{{book.summary}}
</div>

<div class = "tab-pane fade" id = "characters" role = "tabpanel" 
aria-labelledby = "characters-tab"><br><br>
{{book.c1}}<br><br>{{book.c2}}<br><br>{{book.c3}}<br><br>{{book.c4}}<br><br>{{book.c5}}<br><br> 
{{book.c6}}<br><br>{{book.c7}}<br><br>{{book.c8}}<br><br>{{book.c9}}<br><br>
{{book.c10}}
</div>

<div class = "tab-pane fade" id = "relatedbooks" role = "tabpanel" 
aria-labelledby = "relatedbooks-tab">Content for related books tab</div>
</div>
<br>
<br>
<div class="container">
<form method="post" class="mb-4">
{% csrf_token %}
<div class="form-group">
<label for="exampleFormControlTextarea1">Leave your comment:</label>
<textarea class="form-control" id="exampleFormControlTextarea1" rows="3"></textarea>
</div>
<button type="submit" class="btn btn-success">Post</button>
</form>
{% for com in comment %}
<div class="card mb-2">
<div class="card-body p-3">
<div class="row">
<div class="col-2">
<img src="{% static 'images/icon2.webp' %}" alt="{{ com.user_id }}" class="w-100">
<small>Posts: {{ com.count }}</small></div>
<div class="col-10">
<div class="row mb-3">
<div class="col-6">
<strong class="text-muted">{{ com.user_id }}</strong>
</div>
<div class="col-6 text-right">
<small class="text-muted">{{ com.date_comment }}</small>
</div>
</div>
{{ com.message }}<br><br>
{% if com.user_id == user %}
<button type="button" class="btn btn-primary">Reply</button>
{% endif %}

</div>
</div></div></div></div>
{% endfor %}
</div>
</div>
</div>
<!-- jQuery library -->
<script src = "https://code.jquery.com/jquery-3.2.1.slim.min.js" 
integrity = "sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" 
crossorigin = "anonymous">
</script>
<!-- Popper -->
<script src = "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" 
integrity = "sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" 
crossorigin = "anonymous">
</script>
<!-- Latest compiled and minified Bootstrap JavaScript -->
<script src = "https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" 
integrity = "sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" 
crossorigin="anonymous">
</script>

{% endblock %}

Answer 1

您需要将post_id添加到新创建的注释中。

像这样：

post.post_id = id

还要确保您对变量使用了正确的命名，我认为在这种情况下，基于CommentForm:model = Comment的形式，post应该是comment

这种替换对代码来说是有意义的：

if request.method == 'POST':
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(commit=False)
comment.user_id = request.user
comment.message= comment
comment.post_id = id
comment.save()