Django视图在Ajax重定向后未呈现 [英] Django view not rendering after Ajax redirect

问题描述

我的网站主页顶部有多个按钮.只要按下这些按钮之一，就会将获取请求发送到django视图，该视图将被重定向，并且django模型的查询集将被过滤并最终显示在网页上.我知道我的ajax可以正常工作，因为终端说请求已正确重定向.重定向到的功能似乎也很有效，因为它非常简单并且没有引发任何错误.但是，我的看法不变，我不确定为什么.

The main page of my website has multiple buttons at the top. Whenever one of these buttons is pushed, a get request is sent to a django view, which is redirected and a queryset of django models is filtered and eventually displayed on the web page. I know that my ajax works because the terminal says the request is redirected properly. The function it redirects to also seems to be working, as it is quite simple and has not thrown any errors. However, my view remains the same and I'm not sure why.

urls.py

url(r'ajax_filter/', views.ajax_filter, name='ajax_filter'),
url(r'filter=(\w+)/$', views.filtered_index, name='filtered_index'),

views.py

def filtered_index(request, filter):
    clothes = Clothes_Item.objects.filter(gender=filter)
    if request.user.is_authenticated():
        favorite_clothes_ids = get_favorite_clothes_ids(request)
        return render(request, 'test.html', {'clothes': clothes, 'favorite_clothes_ids': favorite_clothes_ids})
    else:
        return render(request, 'test.html', {'clothes': clothes, })

def ajax_filter(request):
    if request.is_ajax():
        gender_filter = request.GET.get('gender_filter') #filter type
        if gender_filter is not None:
            return HttpResponseRedirect(reverse('filtered_index', args=[gender_filter]))
    return HttpResponse('')

推荐答案

在这种情况下，您不能使用Django重定向.当您发送ajax请求时，通常会收到json响应，然后您就可以通过JavaScript代码重定向用户了.

You can not use Django redirect in your case. When you send an ajax request you usually expect a json response, and based on that you can redirect the user via your JavaScript code.

$.ajax({
  // You send your request here
}).done(function(data) {
  // You can handle your redirection here
});

---

在这里，您可以通过设置来处理重定向，将来自django的JsonResponse传递回您想转到的下一页:

---

Here is how you can handle a redirect with your setup, you pass back a JsonResponse from django with the next page that you want to go to:

from django.http import JsonResponse

def ajax_filter(request):
    if request.is_ajax():
        gender_filter = request.GET.get('gender_filter') #filter type
        if gender_filter is not None:
            return JsonResponse({
                'success': True,
                'url': reverse('filtered_index', args=[gender_filter]),
            })
    return JsonResponse({ 'success': False })

在JS中，您可以使用完成(或成功)函数从传回的JsonResponse中获取URL，然后使用window.location.href重定向到该URL:

In JS, you use done (or success) function to grab the URL from the passed back JsonResponse and redirect to that URL using window.location.href:

$.ajax({
  // You send your request here
}).done(function (data) {
    if (data.success) {
        window.location.href = data.url;
    }    
});

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