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 <ahmed.he...@gmail.com
> <javascript:>> 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 <ahmed.he...@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 %}
>>>>>>
>>>>>>
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>>>>>>
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