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？
<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
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'),
编辑：我按照以下网络上的说明进行操作：https://arunrocks.com/building-a-hacker-news-clone-in-django-part-4/
一切都很好，但ajax在我这边
编辑：因此，没有ajax的网址是http://127.0.0.1:8000/community/vote/ 使用ajax时，URL为 / community / post / 3 / vote / 但它显示未找到：在终端
上答案 0 :(得分：0)
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，然后执行我上面所做的操作。
应该工作。
答案 1 :(得分：0)
def integer_to_english(number):
if number>=1 and number<=1000:
a = ['','one','two','three','four','five','six','seven','eight','nine','ten','eleven','twelve','thirteen','fourteen','fifteen','sixteen','seventeen','eighteen','nineteen','twenty ','thirty ','fourty ','fifty ','sixty ','seventy ','eighty ','ninty ']
if number<=20:
if number%10==0: return a[number]
else: return a[number]
elif number<100:
b=number-20
r=b%10
b//=10
return a[20+b]+a[r]
elif number<1000:
if number%100==0:
b=number//100
return a[b]+' hundred'
else:
r=number%100
b=number//100
if r<=20:
return a[b]+' hundred'+' and '+a[r]
else:
r=r-20
d=r//10
r%=10
return a[b]+' hundred'+' and '+a[20+d]+a[r]
elif number==1000:
return 'one thousand'
else:
return -1
number=789
print(integer_to_english(number))
添加到urls.py
<button class="btn btn-primary" onclick="runthis({{post.pk}})">like</button>
function runthis(n){
var patch = '{% url "vote2" %}'
comment = document.getElementById('id_post').value
comment2 = document.getElementById('id_voter').value
info = {"comment":comment, "comment2":"comment2", 'csrfmiddlewaretoken':"{{ csrf_token }}", 'query':n}
$.ajax({
type: "POST",
url: patch,
data:info,
datatype:'json',
headers: { "X-CSRFToken": '{{csrf_token}}' },
success: function(data){
console.log('success')
return
}
})
然后添加到视图。
urlpatterns = [
path('vote/', auth(VoteFormView.as_view()), name='vote'),
path('vote2/', view.vote2, name='vote2')]
答案 2 :(得分：0)
您可能会收到未定义JQuery的错误，因此e.preventDefaults（）永远不会运行，并且您会收到标准的表单提交操作。尝试在此脚本之前包含用于拉入JQuery的脚本标签。这可能是这样的：
<script
src="https://code.jquery.com/jquery-3.4.1.js"
integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU="
crossorigin="anonymous"></script>
<script type="text/javascript">
jQuery(document).ready(function($)
{
$(".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>
<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>
此外，您的HTML似乎缺少结束符</li>。