Ajax无法激活，将我带到其他页面 [英] ajax not activating, taking me to a different page

问题描述

代码按我的意愿工作，但它带我到另一个页面，并且有类似{"success":1，"voteobj":57}的内容.我被告知ajax就是为此而设计的，但我并不擅长.这就是我所拥有的.有人可以检查我在哪里出错了，以及应该怎么做才能解决它?

the code works as I want but it takes me to a different page and have something like {"success": 1, "voteobj": 57}. I was informed ajax is the one for this but I'm not good at it. here's what I have. can someone check where I made an error and what I should do to fix it/?

<script type="text/javascript">
    jQuery(document).ready(function($) 
        {
    $(".vote_form").submit(function(e) 
        {
                e.preventDefault(); 
                var btn = $("button", this);
                var l_id = $(".hidden_id", this).val();
                btn.attr('disabled', true);
                $.post("vote/", $(this).serializeArray(),
                function(data) {
                        if(data["voteobj"]) {
                    btn.text("-");
                        }
                        else {
                    btn.text("+");
                        }
                });
                btn.attr('disabled', false);
        });
        });
</script>
<script
  src="https://code.jquery.com/jquery-3.4.1.js"
  integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU="
  crossorigin="anonymous"></script>


<form method="post" action="{% url 'vote' %}" class="vote_form">
    <li> [{{ post.votes }}]
        {{post}}
        {% csrf_token %}
        <input type="hidden" id="id_post" name="post" class="hidden_id" value="{{ post.pk }}" />
        <input type="hidden" id="id_voter" name="voter" class="hidden_id" value="{{ user.pk }}" />
        {% if not user.is_authenticated %}
        <p>login to vote</p>

        {% elif post.pk not in voted %}
            <button class="btn btn-primary">like</button>
        {% else %}
        <button class="btn btn-primary">dislike</button>
        {% endif %}
            </form>

以下是我的python代码

And following is my python code

class JSONFormMixin(object):
    def create_response(self, vdict=dict(), valid_form=True):
        response = HttpResponse(json.dumps(vdict), content_type='application/json')
        response.status = 200 if valid_form else 500
        return response

class VoteFormBaseView(FormView):
    form_class = VoteForm

    def create_response(self, vdict=dict(), valid_form=True):
        response = HttpResponse(json.dumps(vdict))
        response.status = 200 if valid_form else 500
        return response

    def form_valid(self, form):
        post = get_object_or_404(Post, pk=form.data["post"])
        user = self.request.user
        prev_votes = Vote.objects.filter(voter=user, post=post)
        has_voted = (len(prev_votes) > 0)

        ret = {"success": 1}
        if not has_voted:
            # add vote
            v = Vote.objects.create(voter=user, post=post)
            ret["voteobj"] = v.id
        else:
            # delete vote
            prev_votes[0].delete()
            ret["unvoted"] = 1
        return self.create_response(ret, True)


    def form_invalid(self, form):
        ret = {"success": 0, "form_errors": form.errors }
        return self.create_response(ret, False)



urls.py

urlpatterns = [   
    path('vote/', auth(VoteFormView.as_view()), name='vote'),

我按照以下网络上的说明进行操作:

I followed the instruction on the following web: https://arunrocks.com/building-a-hacker-news-clone-in-django-part-4/

一切都很好，但ajax在我的身边

Everything works good but ajax on my side

因此，没有ajax的网址是 http://127.0.0.1:8000/community/投票/使用ajax时，URL为/community/post/3/vote/但它显示未找到:在终端

So without ajax the url is http://127.0.0.1:8000/community/vote/ With ajax the url is /community/post/3/vote/ but it says Not Found: on terminal

推荐答案

 return self.create_response(ret, True) 

应该是

return JsonResponse(safe=False, ret)

对不起，我没花时间懒洋洋地回答.不要更改响应.保持它不变，然后执行我上面刚刚做的事情.

Sorry, I didn't take my time and answered lazily. Don't change response. Keep that as you have it and do what I just did above.

应该工作.

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