Hi,
There are a couple of errors in your code:
1. You are using a ListView and then trying to get an individual post? That
is really strange
2. In your get_context_data method - you first get the context data, update
it and then you set it to a new dict, so everything is reset in the dict.
3. you are trying to get the absolut url for your post, but aren't showing
any post detail view.
Regards,
Andréas
Den ons 13 maj 2020 kl 06:46 skrev Ahmed Khairy <ahmed.heshamel...@gmail.com
>:
> I am currently trying to create a like button for my posts in Django
>
> I have reached to the part where I can add a like but I am facing
> difficulty writing the code related to the view which linking the
> PostListView if there is user who liked it or not. I am getting an error:
> page Error 404 although everything is correct
>
>
> this the views:
>
>
> class PostListView(ListView):
> model = Post
> template_name = "score.html"
> ordering = ['-date_posted']
> context_object_name = 'posts'
> queryset = Post.objects.filter(admin_approved=True)
> paginate_by = 5
>
> def get_context_data(self, **kwargs):
> post = get_object_or_404(Post, id=self.request.POST.get('post_id'
> ))
> context = super(PostListView, self).get_context_data(**kwargs)
> context['posts'][0].likes.filter(id=self.request.user.id).exists()
> is_liked = False
> if post.likes.filter(id=self.request.user.id).exists():
> is_liked = True
> context = {'post': post,
> 'is_like': is_liked,
> }
> return context
>
>
>
> def like_post(request):
> post = get_object_or_404(Post, id=request.POST.get('post_id'))
> is_liked = False
> if post.likes.filter(id=request.user.id).exists():
> posts.likes.remove(request.user)
> is_liked = False
>
> else:
> post.likes.add(request.user)
> is_liked = True
>
> return HttpResponseRedirect(post.get_absolute_url())
>
>
> This is the model
>
>
> class Post(models.Model):
> designer = models.ForeignKey(User, on_delete=models.CASCADE)
> title = models.CharField(max_length=100)
> date_posted = models.DateTimeField(default=timezone.now)
> likes = models.ManyToManyField(User, blank=True, related_name='likes')
>
> def __str__(self):
> return self.title
>
> Here is the
>
> path('like/', like_post, name='like_post'),
>
> here is the template:
>
> {% extends "base.html"%} {% block content %} {% for post in posts %}
> <div style="padding-top: 200 px;"><strong>{{post.title}}</strong></div>
> <form action="{% url 'score:like_post'%}" method="POST" class="ui form">
> {% csrf_token %} {% if is_like %}
> <input type="hidden" name="post_id" value="{{post.id}}" />
> <button class="ui button positive" type="submit">Unlike</button>
> {% else %}
> <button class="ui button negative" type="submit">Like</button>
> {% endif %}</form><strong>Likes </strong>
>
> {% endfor %} {% endblock content %}
>
>
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