After working through several google search result pages, I am still desperately stuck at the same problem. I am trying to implement a comment field underneath a blog post. I am thankful for any hints and advice!
I am working on a Blog in Django which is set up with a first, generic ListView to display briefly all available blog posts and with a second, generic DetailView to show the specific blog post in more detail. I now want to place an add_comment_field underneath the specific blog post with all other comments shown underneath. It works when the comment form is displayed on a separate page but not on the same page as the DetailView, which is the desired outcome.
I suspect this has to do with the interplay between views.py and forms.py but I cannot figure out the problem.
Again, thank you so much for your help!
views.py
from django.shortcuts import render, get_object_or_404, redirect
from .models import Post, Comment
from .forms import CommentForm
from django.views.generic.detail import DetailView
class ParticularPost(DetailView):
template_name='blog/post.html'
model = Post
def add_comment_to_post(self, pk):
post = get_object_or_404(Post, pk=pk)
if self.method == "POST":
form = CommentForm(self.POST)
if form.is_valid():
comment = form.save(commit=False)
comment.post = post
comment.save()
return redirect('post_detail', pk=post.pk)
else:
form = CommentForm()
return {'form': form}
urls.py
from django.conf.urls import url, include
from django.views.generic import ListView, DetailView
from .models import Post, Comment
from .views import ParticularPost
urlpatterns = [
url(r'^$', ListView.as_view(queryset=Post.objects.all().order_by("-date")[:25], template_name="blog/blog.html")),
url(r'^(?P<pk>\d+)$', ParticularPost.as_view(), name="post_detail"),
]
post.html
{% extends "personal/header.html" %}
{% load staticfiles %}
{% block content %}
<div class="container-fluid background_design2 ">
<div class="header_spacing"></div>
<div class="container post_spacing">
<div class="row background_design1 blog_post_spacing inline-headers">
<h3><a href="/blog/{{post.id}}">{{ post.title }}</a></h3>
<h6> on {{ post.date }}</h6>
<div class = "blog_text">
{{ post.body|safe|linebreaks}}
</div>
<br><br>
</div>
<div>
<form method="POST" class="post-form">{% csrf_token %}
{{ form.as_p }}
<button type="submit" class="save btn btn-default">Send</button>
</form>
</div>
<div class=" row post_spacing background_design1 ">
<hr>
{% for comment in post.comments.all %}
<div class=" col-md-12 comment">
<div class="date">{{ comment.created_date }}</div>
<strong>{{ comment.author }}</strong>
<p>{{ comment.text|linebreaks }}</p>
</div>
{% empty %}
<p>No comments here yet :(</p>
{% endfor %}
</div>
</div>
</div>
{% endblock %}
forms.py
from django import forms
from .models import Comment
class CommentForm(forms.ModelForm):
class Meta:
model = Comment
fields = ('author', 'text',)
models.py
from django.db import models
from django.utils import timezone
class Post(models.Model):
title = models.CharField(max_length=140)
body = models.TextField()
date = models.DateTimeField()
def __str__(self):
return self.title
class Comment(models.Model):
post = models.ForeignKey('blog.Post', related_name='comments')
author = models.CharField(max_length=200)
text = models.TextField()
created_date = models.DateTimeField(default=timezone.now)
def __str__(self):
return self.text
Use FormMixin if you want combine DetailView and a form:
from django.shortcuts import render, get_object_or_404, redirect
from django.views.generic.detail import DetailView
from django.views.generic.edit import FormMixin
from django.urls import reverse
from .models import Post, Comment
from .forms import CommentForm
class ParticularPost(FormMixin, DetailView):
template_name='blog/post.html'
model = Post
form_class = CommentForm
def get_success_url(self):
return reverse('post_detail', kwargs={'pk': self.object.id})
def get_context_data(self, **kwargs):
context = super(ParticularPost, self).get_context_data(**kwargs)
context['form'] = CommentForm(initial={'post': self.object})
return context
def post(self, request, *args, **kwargs):
self.object = self.get_object()
form = self.get_form()
if form.is_valid():
return self.form_valid(form)
else:
return self.form_invalid(form)
def form_valid(self, form):
form.save()
return super(ParticularPost, self).form_valid(form)
And don't forget to add the post field into the form (you can do it hidden):
class CommentForm(forms.ModelForm):
class Meta:
model = Comment
fields = ('author', 'text', 'post',)
And the better way to add a creation date - use auto_now_add=True:
created_date = models.DateTimeField(auto_now_add=True)