在POST请求后，如何重定向到Django中的上一页 [英] How to redirect to previous page in Django after POST request

问题描述

我遇到一个我找不到解决方案的问题。导航栏中有一个按钮，可在所有页面上使用，它是一个负责创建某些内容的按钮。

查看与按钮的链接：

  def createadv（request） ：
 uw = getuw（request.user.username）
如果request.method =='POST'：
 form = AdverForm（request.POST，request.FILES）
 if form.is_valid（）：
 form.instance.user = request.user 
 form.save（）
 return HttpResponseRedirect（'/'，{'username'：request.user.username， 'uw'：uw}）
 args = {} 
 args.update（csrf（request））
 args ['user'] = request.user.username 
 args [ 'form'] = AdverForm（）
 args ['uw'] = uw 
 return render_to_response（'createadv.html'，args）
  

如果现在可以看到，我总是在创建内容后重定向到主页面'/'，但是我想回到我启动内容创建的页面。 / p>

解决方案

您可以向您的表单添加下一个字段，并将其设置至 Request的。处理完表格后，您可以重定向到此路径的值。

template.html

 < form method =POST> 
 {％csrf_token％} 
 {{form}} 
< input type =hiddenname =nextvalue ={{request.path}}> 
< button type =submit>让我们走< / button> 
< / form> 
  

views.py

  next = request.POST.get（'next'，'/'）
 return HttpResponseRedirect（next）
  

如果我记得很好，这大概是$ code> django.contrib.auth 对于登录表单。

如果您通过中间页面，您可以通过querystring传递下一个值：

some_page.html

 < a href ={％url'your_form_view'％}？next = {{request.path | urlencode}}>转到我的表单！< / a> 
  

template.html

 < form method =POST> 
 {％csrf_token％} 
 {{form}} 
< input type =hiddenname =nextvalue ={{request.GET.next}}> 
< button type =submit>让我们走< / button> 
< / form> 
  

I face a problem which I can't find a solution for. I have a button in navbar which is available on all pages and it is a button responsible for creating some content.

View that links with button:

def createadv(request):
    uw = getuw(request.user.username)
    if request.method =='POST':
    form = AdverForm(request.POST, request.FILES)
    if form.is_valid():
        form.instance.user = request.user
        form.save()
        return HttpResponseRedirect('/', {'username': request.user.username, 'uw': uw})
    args = {}
    args.update(csrf(request))
    args['username'] = request.user.username
    args['form'] = AdverForm()
    args['uw'] = uw
    return  render_to_response('createadv.html', args)

If you can see now I always redirect to main page '/' after creating content but I want to go back to the page with which I launched the creation of content.

解决方案

You can add a next field to your form, and set it to request.path. After you processed your form you can redirect to the value of this path.

template.html

<form method="POST">
    {% csrf_token %}
    {{ form }}
    <input type="hidden" name="next" value="{{ request.path }}">
    <button type="submit">Let's Go</button>
</form>

views.py

next = request.POST.get('next', '/')
return HttpResponseRedirect(next)

This is roughly what django.contrib.auth does for the login form if I remember well.

If you pass through an intermediate page, you can pass the 'next' value via the querystring:

some_page.html

<a href="{% url 'your_form_view' %}?next={{ request.path|urlencode }}">Go to my form!</a>

template.html

<form method="POST">
    {% csrf_token %}
    {{ form }}
    <input type="hidden" name="next" value="{{ request.GET.next }}">
    <button type="submit">Let's Go</button>
</form>

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