Hi again, Bare with me - this is just written in this email - so:
1. Your listview is paginated by 5, so it will only show 5 posts - that's good for this exercise and how I would solve it. 2. Rewrite your get_context_data method to iterate over the posts: def get_context_data(self, **kwargs): context_data = super(PostListView, self).get_context_data(**kwargs) for post in context_data['posts']: post.is_liked = post.likes.filter(user=user).exists() return context So now your page should show. In the page 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"> <input type="hidden" name="post_id" value="{{post.id}}" />{% csrf_token %} {% if is_like %} <button class="ui button positive" type="submit">Unlike</button> {% else %} <button class="ui button negative" type="submit">Like</button> {% endif %}</form>{% endfor %} {% endblock content %} Something like this should give you the functionality you want - however it's still a bit cumbersome. Regards, Andréas Den ons 13 maj 2020 kl 15:24 skrev Ahmed Khairy <ahmed.heshamel...@gmail.com >: > Hi Andréas Kühne, > > Regarding the first error > > I have a list of posts in the listView and want to add the like button to > each post so how should I fix it? > > Thank you > > On Wednesday, May 13, 2020 at 6:08:31 AM UTC-4, Andréas Kühne wrote: >> >> 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.he...@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 %} >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Django users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to django...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/django-users/583492d8-5252-4f86-8e8f-7593b582d404%40googlegroups.com >>> <https://groups.google.com/d/msgid/django-users/583492d8-5252-4f86-8e8f-7593b582d404%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/aee352a1-2938-42a6-98cb-5d602abba567%40googlegroups.com > <https://groups.google.com/d/msgid/django-users/aee352a1-2938-42a6-98cb-5d602abba567%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Django users" group. 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