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I have an app django of posts (posts) and comments from posts.
In it I can also delete one post, however while deleting a post the application only deletes the post with higher id. The same occurs when commenting. The application only adds the comment to the post higher id.
Model
from django.db import models
from authentication.models import User
TYPE_POST = (
('0', 'Post'),
('1', 'Comment')
)
class Post(models.Model):
content = models.TextField(blank=True, null=True)
image = models.ImageField(upload_to='imagens/', blank=True, null=True)
user = models.ForeignKey(User, on_delete=models.CASCADE)
reactions = models.IntegerField(default=0)
type_post = models.CharField(max_length=1, choices=TYPE_POST, default='0')
pub_date = models.DateTimeField(auto_now_add=True)
commented_post = models.ForeignKey('self', on_delete=models.CASCADE, null=True, blank=True)
@property
def get_comments(self):
comments = Post.objects.filter(type_post='1', commented_post=self)
return comments
class Meta:
ordering = ['-pub_date']
Forms
from django import forms
from .models import Post
class PostForm(forms.Form):
image = forms.ImageField(required=False)
content = forms.CharField(widget=forms.Textarea, required=False)
def is_valid(self):
valid = super(PostForm, self).is_valid()
image = self.cleaned_data.get('image')
content = self.cleaned_data.get('content')
if image is None and content == '':
self.add_error('Seu post precisa de um texto e/ou uma imagem')
valid = False
return valid
def add_error(self, message):
errors = self._errors.setdefault(forms.forms.NON_FIELD_ERRORS, forms.utils.ErrorList())
errors.append(message)
class CommentForm(forms.Form):
content = forms.CharField(widget=forms.Textarea, required=False)
def is_valid(self):
valid = super(CommentForm, self).is_valid()
content = self.cleaned_data.get('content')
if content == '':
self.add_error('Seu comentário precisa de um conteúdo')
return valid
def add_error(self, message):
errors = self._errors.setdefault(forms.forms.NON_FIELD_ERRORS,
forms.utils.ErrorList())
errors.append(message)
Excerpt from the Template index.html
{{ profile.full_name }}
</a>
</h4>
</div>
</div>
{% endfor %}
{% include 'add_post.html' %}
{% include 'post_list.html' with posts=posts %}
</div>
<div class="col col-sm-3">Lado</div>
</div>
View index
@login_required
def index(request):
profiles = User.objects.all()
posts = Post.objects.filter(user=current_user(request), type_post='0')
paginador = Paginator(posts, 10)
page = request.GET.get('page')
posts = paginador.get_page(page)
src = {'current_user': current_user(request), 'profiles': profiles, 'form': PostForm(),
'comment_form': CommentForm(), 'posts': posts}
return render(request, 'index.html', src)
Template post_list.html
{% for post in posts %}
<p>Publicado em {{ post.pub_date }}</p>
<p>{{ post.content }}</p>
<p>
{% if post.image %}
<img src="{{ post.image.url }}" style="max-width: 100%">
{% endif %}
</p>
<button class="btn btn-primary btn-sm" data-toggle="modal" data-target="#modal-comment-post">Comentar</button>
<div class="modal" id="modal-comment-post" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Adicionar Comentário</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Fechar">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<p>{% include 'comment_form.html' with post=post %}</p>
</div>
</div>
</div>
</div>
{% if current_user == post.user %}
<button class="btn btn-danger btn-sm" data-toggle="modal" data-target="#modal-delete-post">Delete</button>
<div class="modal" id="modal-delete-post" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Excluir Postagem</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Fechar">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<p>Deseja excluir a postagem?</p>
</div>
<div class="modal-footer">
<a class="btn btn-secondary" data-dismiss="modal">Fechar</a>
<a href="{% url 'delete_post' post.id %}" class="btn btn-primary">Excluir</a>
</div>
</div>
</div>
</div>
<a class="btn btn-primary btn-sm" href="{% url 'report_post' post.id %}">Denunciar</a>
{% endif %}
{% for comment in post.get_comments %}
<p>{{ comment.content }}</p>
<p>{{ comment.pub_date }}</p>
{% endfor %}
{% endfor %}
Template comment_form.html
{% load widget_tweaks %}
<form action="{% url 'comment_post' post.id %}" method="POST" enctype="multipart/form-data">
{% csrf_token %}
{% for field in comment_form %}
<div class="form-group">
{{field.label_tag }}
{% render_field field class+="form-control" %}
</div>
{% endfor%}
<div class="modal-footer">
<a class="btn btn-secondary" data-dismiss="modal">Fechar</a>
<button class="btn btn-primary" type="submit">Comentar</button>
</div>
{% if form.errors %}
<div class="alert alert-danger">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
{{ form.non_field_errors }}
</div>
{% endif %}
</form>
Views Delete Post and Comment Post
@login_required
def delete_post(request, post_id):
post = Post.objects.get(id=post_id)
post.delete()
return redirect('index')
@login_required
def comment_post(request, post_id):
if request.method == 'POST':
form = CommentForm(request.POST)
post = Post.objects.get(id=post_id)
if form.is_valid():
data_form = form.cleaned_data
Post.objects.create(content=data_form['content'], user=request.user, type_post='1', commented_post=post)
return redirect('index')
else:
return redirect('index')
else:
return redirect('index')