Hi, We can't solve all of your problems for you :) But that being said - in the get_context_data you don't have a parameter for the request, however in all CBV you get the request as a variable on the CBV itself - so change:
post.is_liked = post.likes.filter(user=request.user).exists() To: post.is_liked = post.likes.filter(user=self.request.user).exists() Regards, Andréas Den ons 13 maj 2020 kl 22:10 skrev Ahmed Khairy <[email protected] >: > still showing the same error > > On Wednesday, May 13, 2020 at 2:34:03 PM UTC-4, Yamen Gamal Eldin wrote: >> >> I haven't seen any definition for user within ur function, so >> Change this >> post.is_liked = post.likes.filter(user=user).exists() >> >> To this >> >> post.is_liked = post.likes.filter(user=request.user).exists() >> >> >> Le mer. 13 mai 2020 à 19:22, Ahmed Khairy <[email protected]> a >> écrit : >> >>> Hi There, >>> >>> I have rewritten the get_context_data method to be like this but I am >>> getting name 'user' is not defined: >>> >>> >>> class PostListView(ListView): >>> model = Post >>> template_name = "score.html" >>> ordering = ['-date_posted'] >>> context_object_name = 'posts' >>> paginate_by = 5 >>> >>> 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() >>> <----- name 'user' is not defined >>> return context >>> >>> I am also using this template just for testing till fix the issue >>> >>> Thank you Andreas with me >>> >>> >>> On Wednesday, May 13, 2020 at 12:31:15 PM UTC-4, Andréas Kühne wrote: >>>> >>>> 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 <[email protected] >>>> >: >>>> >>>>> 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 < >>>>>> [email protected]>: >>>>>> >>>>>>> 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 [email protected]. >>>>>>> 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 [email protected]. >>>>> 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. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/django-users/58be585f-357c-4454-acad-6799abe2e43d%40googlegroups.com >>> <https://groups.google.com/d/msgid/django-users/58be585f-357c-4454-acad-6799abe2e43d%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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/d65b8dcb-b7e3-472d-8892-fb4c8e477109%40googlegroups.com > <https://groups.google.com/d/msgid/django-users/d65b8dcb-b7e3-472d-8892-fb4c8e477109%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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