Based on this tutorial https://www.youtube.com/watch?v=An4hW4TjKhE&ab_channel=AbhishekVerma I'm trying to add the ability to add comments under posts, add a comment in the admin panel, everything is ok, but the site does not display anything under the post
here is models.py
from django.db import models
from django.urls import reverse
from django.contrib.auth.models import User
from django.contrib.contenttypes.models import ContentType
class Post(models.Model):
published = None
title = models.CharField(max_length=200)
author = models.ForeignKey(
'auth.User',
on_delete=models.CASCADE,
)
body = models.TextField()
header_image = models.ImageField(blank=True, null=True, upload_to="images/", default='fox.jpeg')
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('post_detail', args=[str(self.id)])
class Comment(models.Model):
post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='post_post')
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='user_user')
content = models.TextField(max_length=160)
timestamp = models.DateTimeField(auto_now_add=True)
def __str__(self):
return '{}-{}'.format(self.post.title, str(self.user.username))
views.py
from django.http import HttpResponseRedirect
from django.shortcuts import render, get_object_or_404
from django.views.generic import ListView, DetailView
from django.views.generic.edit import CreateView, UpdateView, DeleteView
from django.urls import reverse_lazy
from .models import Post, Comment
from django import forms
from .forms import *
class BlogListView(ListView):
model = Post
template_name = 'home.html'
context_object_name = 'posts'
paginate_by = 2
queryset = Post.objects.all()
class BlogDetailView(DetailView):
model = Post
template_name = 'post_detail.html'
class BlogCreateView(CreateView):
model = Post
template_name = 'post_new.html'
fields = ['title', 'author', 'body', 'header_image']
class BlogUpdateView(UpdateView):
model = Post
template_name = 'post_edit.html'
fields = ['title', 'body', 'header_image']
class BlogDeleteView(DeleteView):
model = Post
template_name = 'post_delete.html'
success_url = reverse_lazy('home')
@property
def image_url(self):
"""
Return self.photo.url if self.photo is not None,
'url' exist and has a value, else, return None.
"""
if self.image:
return getattr(self.photo, 'url', None)
return None
def post_detail(request, id, slug):
post = get_object_or_404(Post, id=id, slug=slug)
comments = Comment.objects.filter(post=post).order_by('-id')
is_liked = False
if post.likes.filter(id=request.user.id).exists():
is_liked = True
if request.method == 'POST':
comment_form = CommentForm(request.POST or None)
if comment_form.is_valid():
content = request.POST.get('content')
comment = Comment.objects.create(post=post, user=request.user, content=content)
comment.save()
return HttpResponseRedirect(post.get_absolute_url())
else:
comment_form = CommentForm()
context = {
'post': post,
'is_liked': is_liked,
'total_likes': post.total_likes(),
'comments': comments,
'comment_form': comment_form,
}
return render(request, 'myblog/post_detail.html', context) #his "blog" = my "myblog"
class CommentForm(forms.ModelForm):
class Meta:
model = Comment
fields = ('content',)
post_detail.html
{% extends 'base.html' %}
{% block content %}
<div class="post-entry">
<h2>{{ post.title }}</h2>
<p>{{ post.body }}</p>
</div>
<p><a href="{% url 'post_edit' post.pk %}">+ Edit Blog Post</a></p>
<p><a href="{% url 'post_delete' post.pk %}">+ Delete Blog Post</a></p>
<img src="{{ post.header_image.url|default_if_none:'fox.jpeg' }}">
{{ post.body|urlize }}
{% for comm in post.commentpost_set.all%}
{{ comm.user }} <br>
{{ comm.text }} <br><br>
{% endfor %}
{% endblock content %}
<br><br>
<hr>
<form method="post">
{% csrf_token %}
{{ comment_form.as_p }}
{% if request.user.is_authenticated %}
<input type="submit" value="Submit" class="btn btn-outline-success">
{% else %}
<input type="submit" value="Submit" class="btn btn-outline-success" disabled>
{% endif %}
</form>
<div class="main-comment-section">
{{ comments.count }} Comment{{ comments|pluralize }}
{% for comment in comments %}
<blockquote class="blockquote">
<p class="mb-0">{{ comment.content }}</p>
<footer class="blockquote-footer">by <cite title="Source Title">{{ comment.user|capfirst }}</cite></footer>
</blockquote>
{% endfor %}
</div>
myblog/urls.py
from django.urls import path
from .views import (
BlogListView,
BlogDetailView,
BlogCreateView,
BlogUpdateView,
BlogDeleteView,
)
urlpatterns = [
path('post/new/', BlogCreateView.as_view(), name='post_new'),
path('post/<int:pk>/', BlogDetailView.as_view(), name='post_detail'),
path('post/<int:pk>/edit/',BlogUpdateView.as_view(), name='post_edit'),
path('post/<int:pk>/delete/',BlogDeleteView.as_view(), name='post_delete'),
path('', BlogListView.as_view(), name='home'),
]
base.html
{% load static %}
<html>
<head>
<title>Django blog</title>
<link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:400"
rel="stylesheet">
<link href="{% static 'css/base.css' %}" rel="stylesheet">
</head>
<body>
<div>
<header>
<div class="nav-left">
<h1><a href="{% url 'home' %}">Django blog</a></h1>
<h2><a href="http://127.0.0.1:8000/admin/">Admin</a></h2>
</div>
<div class="nav-right">
<a href="{% url 'post_new' %}">+ New Blog Post</a>
</div>
</header>
{% if user.is_authenticated %}
<p>Hi {{ user.username }}!</p>
{% else %}
<p>You are not logged in.</p>
<a href="{% url 'login' %}">Log In</a><br>
<p><a href="http://127.0.0.1:8000/accounts/signup/">Sign up</a></p>
{% endif %}
{% block content %}
{% endblock content %}
</div>
</body>
</html>
<ul class="pagination">
{% if page_obj.has_previous %}
{% if page_obj.number|add:'-3' > 1 %}
<li class="pagination__item">
<a href="?{{ post }}{{ post }}page=1">1</a>
</li>
{% endif %}
{% if page_obj.number|add:'-3' >= 3 %}
<li class="pagination__item pagination__item--dots">
<a href="?{{ genre }}{{ year }}page={{ page_obj.previous_page_number|add:'-3' }}">
<span class="pagination__link">• • •</span>
</a>
</li>
{% endif %}
{% endif %}
{% if paginator.page_range|length > 1 %}
{% for i in paginator.page_range %}
{% if page_obj.number == i %}
<li class="pagination__item active">
<a class="pagination__link" href="#">{{ i }}</a>
</li>
{% elif i > page_obj.number|add:'-4' and i < page_obj.number|add:'4' %}
<li class="pagination__item">
<a class="pagination__link" href="?{{ genre }}{{ year }}page={{ i }}">{{ i }}</a>
</li>
{% endif %}
{% endfor %}
{% endif %}
{% if page_obj.has_next %}
{% if page_obj.number|add:'4' < page_obj.paginator.num_pages %}
<li class="pagination__item pagination__item--dots">
<a href="?{{ genre }}{{ year }}page={{ page_obj.next_page_number|add:'3' }}">
<span class="pagination__link">• • •</span>
</a>
</li>
{% endif %}
{% if page_obj.number|add:'3' < page_obj.paginator.num_pages %}
<li class="pagination__item">
<a class="pagination__link" href="?{{ genre }}{{ year }}page={{ page_obj.paginator.num_pages }}">
{{ page_obj.paginator.num_pages }}
</a>
</li>
{% endif %}
{% endif %}
</ul>
Thanks for any help
