Cannot resolve keyword 'slug' into field
Question
Im making comment and reply system in my blog using Django. Now im trying to get queryset of comments that dont have reply comments(if I dont do this, reply comments will be displayed on a page as regular comments). Here is error that i got:
FieldError at /post/fourh-news Cannot resolve keyword 'slug' into field. Choices are: comm_to_repl, comm_to_repl_id, comment_content, created, id, post, post_of_comment, post_of_comment_id, replies, user_created_comment, user_created_comment_id Request Method: GET Request URL: http://127.0.0.1:8000/post/fourh-news Django Version: 4.1.2 Exception Type: FieldError Exception Value:
Cannot resolve keyword 'slug' into field. Choices are: comm_to_repl, comm_to_repl_id, comment_content, created, id, post, post_of_comment, post_of_comment_id, replies, user_created_comment, user_created_comment_id Exception Location: D:\pythonProject28django_pet_project\venv\lib\site-packages\django\db\models\sql\query.py, line 1709, in names_to_path Raised during: blog.views.ShowSingleNews Python Version: 3.10.4
Model:
class Post(models.Model):
title = models.CharField(max_length=150, verbose_name='Название')
slug = models.CharField(max_length=100, unique=True, verbose_name='Url slug')
content = models.TextField(verbose_name='Контент')
created_at = models.DateTimeField(auto_now=True, verbose_name='Дата добавления')
updated_at = models.DateTimeField(auto_now=True, verbose_name='Дата обновления')
posted_by = models.CharField(max_length=100, verbose_name='Кем добавлено')
photo = models.ImageField(upload_to='photos/%Y/%m/%d', verbose_name='Фото', blank=True)
views = models.IntegerField(default=0)
category = models.ForeignKey('Category', on_delete=models.PROTECT, verbose_name='Категория')
tag = models.ManyToManyField('Tags', verbose_name='Тэг', blank=True)
comment = models.ForeignKey('Comment', verbose_name='Комментарий', on_delete=models.CASCADE, null=True, blank=True)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('single_news', kwargs={'slug': self.slug})
class Meta:
ordering = ['-created_at']
class Category(models.Model):
title = models.CharField(max_length=150, verbose_name='Название')
slug = models.CharField(max_length=100, unique=True, verbose_name='category_url_slug')
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('category', kwargs={'slug': self.slug})
class Meta:
ordering = ['title']
class Tags(models.Model):
title = models.CharField(max_length=150, verbose_name='Название')
slug = models.CharField(max_length=100, unique=True, verbose_name='tag_url_slug')
def get_absolute_url(self):
return reverse('news_by_tag', kwargs={'slug': self.slug})
def __str__(self):
return self.title
class Meta:
ordering = ['title']
class Comment(models.Model):
user_created_comment = models.ForeignKey(User, related_name='user', on_delete=models.CASCADE, null=True)
post_of_comment = models.ForeignKey(Post, related_name='comments', on_delete=models.CASCADE, null=True)
comment_content = models.TextField(verbose_name='Текст комментария')
created = models.DateTimeField(auto_now=True)
comm_to_repl = models.ForeignKey("self", on_delete=models.CASCADE, null=True, blank=True, related_name='replies')
def get_absolute_url(self):
return reverse('single_news', kwargs={'slug': self.post_of_comment.slug})
class Meta:
ordering = ['-created']
View:
class ShowSingleNews(DetailView):
model = Post
template_name = 'blog/single_news.html'
context_object_name = 'post'
raise_exception = True
form = CommentForm
def post(self, request, *args, **kwargs):
form = CommentForm(request.POST)
if form.is_valid():
post = self.get_object()
form.instance.user_created_comment = request.user
form.instance.post_of_comment = post
commrepl = request.POST.get("commentID")
form.instance.comm_to_repl_id = int(commrepl)
form.save()
else:
print("some error with form happened")
print(form.errors.as_data())
return redirect(reverse("single_news", kwargs={
"slug": self.get_object().slug
}))
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context['title'] = Post.objects.get(slug=self.kwargs['slug'])
context['form'] = self.form
self.object.views = F('views') + 1
self.object.save()
self.object.refresh_from_db()
return context
def get_queryset(self):
return Comment.objects.filter(replies=None)
Template:
{% extends 'base.html' %}
{% load static %}
{% load sidebar %}
{% block title %}
{{ title }}
{% endblock %}
{% block header %}
{% include 'inc/_header.html'%}
{% endblock %}
{% block content %}
<section class="single-blog-area">
<div class="container">
<div class="row">
<div class="col-md-12">
<div class="border-top">
<div class="col-md-8">
<div class="blog-area">
<div class="blog-area-part">
<h2>{{ post.title}}</h2>
<h5> {{ post.created_at }}</h5>
<img src="{{ post.photo.url }}">
<div>
<span>Category: {{ post.category }}</span> <br>
<span>Posted by: {{ post.posted_by }}</span> <br>
</div>
<h5>Views: {{ post.views }}</h5>
<p>{{ post.content|safe }}</p>
<div class="commententries">
<h3>Comments</h3>
{% if user.is_authenticated %}
<form method="POST" action="{% url 'single_news' slug=post.slug %}">
{% csrf_token %}
<input type="hidden" id="commentID">
<div class="comment">
<input type="text" name="comment_content" placeholder="Comment" class="comment">
</div>
<div class="post">
<input type="submit" value="Post">
</div>
</form>
{% else %}
<h5><a href="{% url 'login' %}">Login</a> in order to leave a comment</h5>
{% endif %}
<ul class="commentlist">
{% if not post.comments.all %} </br>
<h5>No comments yet...</h5>
{% else %}
{% for comment in post.comments.all %}
<li>
<article class="comment">
<header class="comment-author">
<img src="{{ user.image.url }}" alt="">
</header>
<section class="comment-details">
<div class="author-name">
<h5><a href="#">{{ comment.user_created_comment.username }}</a></h5>
<p>{{ comment.created }}</p>
</div>
<div class="comment-body">
<p>{{ comment.comment_content }} </p>
</div>
<div class="reply">
<p><span><a href="#"><i class="fa fa-thumbs-up" aria-hidden="true"></i></a>12</span><span><button class="fa fa-reply" aria-hidden="true"></button>7</span></p>
<form method="POST" action="{% url 'single_news' slug=post.slug %}">
{% csrf_token %}
<input type="hidden" name="commentID" value="{{ comment.id }}">
<div class="comment">
<input type="text" name="comment_content" placeholder="Comment" class="replyComment">
</div>
<div class="post">
<input type="submit" value="Reply">
</div>
</form>
</div>
</section>
{% if comment.replies.all %}
{% for reply in comment.replies.all %}
<ul class="children">
<li>
<article class="comment">
<header class="comment-author">
<img src="{% static 'img/author-2.jpg' %}" alt="">
</header>
<section class="comment-details">
<div class="author-name">
<h5><a href="#">{{ reply.user_created_comment.username }}</a></h5>
<p>Reply to - {{ reply.comm_to_repl.user_created_comment }}</p>
<p>{{ reply.created }}</p>
</div>
<div class="comment-body">
<p>{{ reply.comment_content}}</p>
</div>
<div class="reply">
<p><span><a href="#"><i class="fa fa-thumbs-up" aria-hidden="true"></i></a>12</span><span><a href="#"><i class="fa fa-reply" aria-hidden="true"></i></a>7</span></p>
<form method="POST" action="{% url 'single_news' slug=post.slug %}">
{% csrf_token %}
<input type="hidden" name="commentID" value="{{ reply.id }}">
<div class="comment">
<input type="text" name="comment_content" placeholder="Comment" class="replyComment">
</div>
<div class="post">
<input type="submit" value="Reply">
</div>
</form>
</div>
</section>
</article>
</li>
</ul>
{% endfor %}
{% endif %}
</article>
{% endfor %}
{% endif %}
</ul>
</div>
</div>
</div>
</div>
<div class="col-md-4">
<div class="newsletter">
<h2 class="sidebar-title">Search for the news</h2>
<form action="{% url 'search' %}" method="get">
<input type="text" name="s" placeholder="Search...">
<input type="submit" value="Search">
</form>
</div>
{% get_popular_posts 5 %}
<div class="tags" style="">
<h2 class="sidebar-title">Tags</h2>
{% for ta in post.tag.all %}
<p><a href="{{ ta.get_absolute_url }}">{{ ta.title }}</a></p>
{% endfor %}
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</section>
{% endblock %}
{% block footer %}
{% include 'inc/_footer.html' %}
{% endblock %}
Urls:
urlpatterns = [
path('', HomePage.as_view(), name='home'),
path('category/<str:slug>/', GetCategory.as_view(), name='category'),
path('post/<str:slug>', ShowSingleNews.as_view(), name='single_news'),
path('tag/<str:slug>', GetNewsByTag.as_view(), name='news_by_tag'),
path('search/', Search.as_view(), name='search'),
path('registration/', registration, name='registration'),
path('login/', loginn, name='login'),
path('logout/', logoutt, name='logout'),
forms:
class CommentForm(forms.ModelForm):
class Meta:
model = Comment
fields = ['comment_content']
1 answers
solution1
0 2022-11-23 07:05:47
You need to be a bit of change in passing URL in HTML like this...
<form method="POST" action="{% url 'single_news' post.slug %}">
{% csrf_token %}
<input type="hidden" id="commentID">
<div class="comment">
<input type="text" name="comment_content" placeholder="Comment" class="comment">
</div>
<div class="post">
<input type="submit" value="Post">
</div>
</form>
NOTE:- If you want to pass url with key you can do like this
<form method="POST" action="{% url 'single_news'?slug=post.slug %}">
{% csrf_token %}
<input type="hidden" id="commentID">
<div class="comment">
<input type="text" name="comment_content" placeholder="Comment" class="comment">
</div>
<div class="post">
<input type="submit" value="Post">
</div>
</form>
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