Django，URL使用请求参数重定向到相同的模板

Question

登录时的初始页面是ReviewList。它显示每个Review项目，每个评论都有一个Like按钮。目标是，当您喜欢评论时，它会将Like计数增加1并重定向到同一模板。执行此操作后，Like按钮将变为不同的Button，然后在单击时将Like计数减1。实际的Like / Different逻辑工作正常但我在将重定向的GET请求传递回ReviewList时遇到了麻烦。最后，我想将上下文['likes']传递给模板，这样我就可以根据它是显示Like还是Different来做条件。这就是我所拥有的：

views.py

class ReviewList(ListView):
    model = Review

    def get_context_data(self, **kwargs):
        context = super(ReviewList, self).get_context_data(**kwargs)
        context['now'] = timezone.now()
        """ Checks if user has liked any reviews. If the user has, then context['liked'] is true, else false. This
        will get passed in to template so that the like button will turn into a unlike button and vice versa  """
        try:
            user_liked = Like.objects.get(user=user, review_id=self.request.GET['review_id']))
        except:
            user_liked = None

        if user_liked:
            liked = True
        else:
            liked = False
        context['liked'] = liked

        return context
...
...

def like(request, id):
    if request.method == 'POST':
        user = request.user
        review = get_object_or_404(Review, id=id)
        like = Like.objects.get_or_create(review_id=review.id)

        try:
            user_liked = Like.objects.get(user=user, review_id=review.id)
        except:
            user_liked = None

        if user_liked:
            user_liked.total_likes -= 1
            user_liked.user.remove(request.user)
            user_liked.save()

        else:
            list(like)
            like[0].user.add(request.user)
            like[0].total_likes += 1
            like[0].save()

    return redirect(reverse_lazy('reviews:review_list'), review.id)

urls.py

from django.conf.urls import patterns, url

from apps.reviews import views

urlpatterns = patterns('',
    url(r'^(?P<review_id>\d+)|$', views.ReviewList.as_view(), name='review_list'),
    url(r'^new/$', views.ReviewCreate.as_view(), name='new'),
    url(r'^(?P<pk>\d+)/$', views.ReviewDetail.as_view(), name='show'),
    url(r'^edit/(?P<pk>\d+)/$', views.ReviewUpdate.as_view(), name='edit'),
    url(r'^delete/(?P<pk>\d+)/$', views.ReviewDelete.as_view(), name='delete'),
    url(r'^like/(?P<id>\d+)/$', views.like, name='like'),

)

已更新

我没有让我的喜欢按钮重定向到它的当前页面，而是决定调整类似按钮。挽救很多头痛。

views.py

def like(request):
    if request.method == 'GET':
        user = request.user
        review = get_object_or_404(Review, id=request.GET['review_id'])
        like = Like.objects.get_or_create(review_id=review.id)

        try:
            user_liked = Like.objects.get(user=user, review_id=review.id)
        except:
            user_liked = None

        if user_liked:
            user_liked.total_likes -= 1
            user_liked.user.remove(request.user)
            user_liked.save()
            likes = user_liked.total_likes

        else:
            list(like)
            like[0].user.add(request.user)
            like[0].total_likes += 1
            like[0].save()
            likes = like[0].total_likes

    return HttpResponse(likes)

urls.py

from django.conf.urls import patterns, url

from apps.reviews import views

urlpatterns = patterns('',
    url(r'^$', views.ReviewList.as_view(), name='review_list'),
    url(r'^new/$', views.ReviewCreate.as_view(), name='new'),
    url(r'^(?P<pk>\d+)/$', views.ReviewDetail.as_view(), name='show'),
    url(r'^edit/(?P<pk>\d+)/$', views.ReviewUpdate.as_view(), name='edit'),
    url(r'^delete/(?P<pk>\d+)/$', views.ReviewDelete.as_view(), name='delete'),
    url(r'^like$', views.like, name='like'),

)

添加了review.js

$(function (){

  $('.btn.active').click(function(e){
    e.preventDefault();
    var rev_id = $(this).attr('data-attr');
    $.get('/reviews/like', { review_id: rev_id}, function(data){
      $('td#review_' + rev_id).html(data);
    });
  });
});

来自review_list.html的

摘录

<td id='review_{{review.id}}' class="likes">
      {% if review.like_set.all|length != 0 %}
        {% for like in review.like_set.all %}
          {{ like.total_likes }}
        {% endfor %}
      {% else %}
        0
      {% endif %}
    </td>