Django中的表单提交按钮不要使用submit属性，否则会触发get请求，或者发生错误。
Hella Nick <personh...@gmail.com> 于2020年5月20日周三 上午11:09写道：
> button标签中的type属性设置为button，
>
> Ahmed Khairy <ahmed.heshamel...@gmail.com> 于2020年5月20日周三 上午1:54写道：
>
>> I am trying to use Ajax to submit a like button, I believe everything is
>> in order but I keep getting django.urls.exceptions.NoReverseMatch: Reverse
>> for 'like_post' with arguments '('',)' not found. 1 pattern(s) tried:
>> ['score/like/(?P<pk>[0-9]+)$']
>>
>>
>> I am not sure what is the reason. Need help to identify the error.
>>
>>
>> Here is the view
>>
>>
>> class PostDetailView(DetailView):
>> model = Post
>> template_name = "post_detail.html"
>>
>> def get_context_data(self, *args, **kwargs):
>> context = super(PostDetailView, self).get_context_data()
>> stuff = get_object_or_404(Post, id=self.kwargs['pk'])
>> total_likes = stuff.total_likes()
>> liked = False
>> if stuff.likes.filter(id=self.request.user.id).exists():
>> liked = True
>> context["total_likes"] = total_likes
>> context["liked"] = liked
>> return context
>>
>>
>> def LikeView(request, pk):
>> # post = get_object_or_404(Post, id=request.POST.get('post_id'))
>> post = get_object_or_404(Post, id=request.POST.get('id'))
>> like = False
>> if post.likes.filter(id=request.user.id).exists():
>> post.likes.remove(request.user)
>> like = False
>> else:
>> post.likes.add(request.user)
>> like = True
>> context["total_likes"] = total_likes
>> context["liked"] = liked
>>
>> if request.is_ajax:
>> html = render_to_string('like_section.html', context, request=
>> request)
>> return JsonResponse({'form': html})
>>
>> Here is the url.py updated
>>
>> urlpatterns = [
>> path('user/<str:username>', UserPostListView.as_view(), name=
>> 'user-posts'),
>> path('', PostListView.as_view(), name='score'),
>> path('who_we_Are/', who_we_are, name='who_we_are'),
>> path('<int:pk>/', PostDetailView.as_view(), name='post-detail'),
>> path('like/<int:pk>', LikeView, name='like_post'),
>> path('new/', PostCreateView.as_view(), name='post-create'),
>> path('<int:pk>/update/', PostUpdateView.as_view(), name='post-update'
>> ),
>> path('<int:pk>/delete/', PostDeleteView.as_view(), name='post-delete'
>> )
>> ]
>>
>> here is the template
>>
>> <form class="mt-0" action="{% url
>> 'score:like_post' post.pk %}" method='POST'>
>> {% csrf_token %}
>> <strong> Likes: {{total_likes}} </strong>
>> {% if user.is_authenticated %}
>> {% if liked %}
>> <button id='like' type='submit' name=
>> 'post_id' class= "btn btn-danger btn-sm"
>> value="{{post.id}}"> Unlike </button>
>> {% else %}
>> <button id='like' type='submit' name=
>> 'post_id' class= "btn btn-primary btn-sm"
>> value="{{post.id}}"> Like </button>
>> {% endif %}
>> {% else %}
>> <p><small><a href="{% url 'login' %}"
>> > Login</a> to Like </small></p>
>> {% endif %}
>> </form>
>>
>> here is the ajax
>>
>> <script src="
>> https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js";></
>> script>
>>
>> <script type="text/javascript">
>> $(document).ready(function(event){
>> $(document).on.('click','#like', function(event){
>> event.preventDefault();
>> $var pk= $(this).attr('value');
>> $.ajax({
>> type:'POST',
>> url:'{% url "score:like_post" post.pk %}',
>> data:{'id': pk, 'csrfmiddlewaretoken':
>> '{{csrf_token}}'},
>> dataType:'json',
>> success:function(response){
>> $('#like-section').html(response['form'])
>> console.log($('#like-section').html(response[
>> 'form']));
>> },
>> error:function(rs, e){
>> console.log(rs.responseText);
>> },
>> });
>> });
>> });
>> </script>
>>
>>
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>>
>
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