9

嘿,我正在按照本教程学习使用 Django 制作 wiki 页面。但是,它是在 django 0.96 中制作的,而我使用的是 Django 1.3,所以有些东西是不同的。有些我已经修复了自己,但是这个我似乎无法让它工作。

我制作了一个将数据提交到视图的表单。这是表格:

<form method="post" action"/wikicamp/{{page_name}}/save/">{% csrf_token %}
    <textarea name="content" rows="20" cols="60">{{content}}</textarea><br>
    <input type="submit" value="Save Page"/>
</form>

并且 /wikicamp/{{page_name}}/save/ url 重定向到 save_page 视图:

from django.http import HttpResponseRedirect
from django.core.context_processors import csrf

def save_page(request, page_name):
    c = {}
    c.update(csrf(request))
    content = c.POST["content"]
    try:
        page = Page.objects.get(pk=page_name)
        page.content = content
    except Page.DoesNotExist:
        page = Page(name=page_name, content=content)
    page.save()
    return HttpResponseRedirect("wikicamp/" + page_name + "/")

但是问题是我收到此错误:

Help

Reason given for failure:

    CSRF token missing or incorrect.


In general, this can occur when there is a genuine Cross Site Request Forgery, or when Django's CSRF mechanism has not been used correctly. For POST forms, you need to ensure:

    The view function uses RequestContext for the template, instead of Context.
    In the template, there is a {% csrf_token %} template tag inside each POST form that targets an internal URL.
    If you are not using CsrfViewMiddleware, then you must use csrf_protect on any views that use the csrf_token template tag, as well as those that accept the POST data.

You're seeing the help section of this page because you have DEBUG = True in your Django settings file. Change that to False, and only the initial error message will be displayed.

You can customize this page using the CSRF_FAILURE_VIEW setting.

所以我通读了一些文档,比如http://docs.djangoproject.com/en/dev/ref/contrib/csrf/#how-to-use-it。然而,我试图这样做,它仍然给出了同样的错误。

所以:有人知道如何使用 Django 1.3 处理表单发布数据吗?

我认为它与:视图函数使用RequestContext作为模板,而不是Context。但我现在不知道它是什么。

顺便说一句,在我的终端中,它显示了本地主机的 http 请求,它说:在模板中使用了 {% csrf_token %},但上下文没有提供值。这通常是由于没有使用 RequestContext 造成的。

4

4 回答 4

9

您必须在标签{% csrf_token %}之间包含表单模板。<form>

<form method="post" action"/wikicamp/{{page_name}}/save/">
    {% csrf_token %}
    <textarea name="content" rows="20" cols="60">{{content}}</textarea><br>
    <input type="submit" value="Save Page"/>
</form>

如果csrf_token未呈现到您的表单中,请确保您RequestContext在视图的响应中提供了:

from django.shortcuts import render_to_response
from django.template import RequestContext

def app_view(request):
    return render_to_response('app_template.html', 
                              app_data_dictionary, 
                              context_instance=RequestContext(request))

或者,使用此快捷方法:

from django.views.generic.simple import direct_to_template

def app_view(request):             
    return direct_to_template(request, 'app_template.html', app_data_dictionary)

RequestContext您使用通用视图时,始终可用。

于 2011-05-16T17:21:46.087 回答
9

您需要在标签之间加上 {% csrf_token %} 模板标签,包括

   django.middleware.csrf.CsrfViewMiddleware
   django.middleware.csrf.CsrfResponseMiddleware

在应用程序 settings.py 中的 MIDDLEWARE_CLASSES

添加一些示例发布数据处理:

这是我在视图中使用 POST 数据的一个例子。我通常会依靠表单类通过cleaned_data 数组进行验证。

if request.method == 'POST':
        form = ForgotPassword(data=request.POST)
        if form.is_valid():
            try:
                new_user = backend.forgot_password(request, **form.cleaned_data)
            except IntegrityError:
                context = {'form':form}
                form._errors[''] = ErrorList(['It appears you have already requested a password reset, please \
                check ' + request.POST['email2'] + ' for the reset link.'])
                return render_template(request,'passwordReset/forgot_password.html',context)
            if success_url is None:
                to, args, kwargs = backend.post_forgot_password(request, new_user)
                return redirect(to, *args, **kwargs)
            else:
                return redirect(success_url)
于 2011-05-16T17:35:10.487 回答
2

我猜你错过了表单声明中的符号“=”。

action"/wikicamp/{{page_name}}/save/"

action="/wikicamp/{{page_name}}/save/"

幸运的是,这可能不是一个错误。因此,如果这不是解决方案,请尝试一些更简单的示例:

# settings.py

TEMPLATE_DIRS = (
    # Here comes something like "C:/www/django/templates"
)

MIDDLEWARE_CLASSES = (
    ...
    'django.middleware.csrf.CsrfViewMiddleware',
    ...
)

# urls.py

urlpatterns = patterns('',
    ('^foo', foo),
)


# views.py
from django.http import HttpResponse
from django.shortcuts import render_to_response
from django.core.context_processors import csrf

def foo(request):
    d = {}
    d.update(csrf(request))
    if 'output' in request.POST:
        d.update({'output':request.POST['output']})
    return render_to_response('foo.html',d)

# foo.html template
<html>
<h1> Foo </h1>
<form action="/foo" method = "post">
    {% csrf_token %}
    <input type="text" name="output"></input>
    <input type="submit" value="go"></input>
</form>
<p> Output: {{ output }} </p>
</html>

希望这会奏效

于 2011-05-17T07:53:09.120 回答
2

上面在第三行使用“request.POST”而不是“c.POST”

def save_page (request,page_name):
    content = request.POST["content"]

并更改“edit_page”

-   return render_to_response("edit.html",{"page_name":page_name, "content":content})
+   t = get_template('edit.html')
+   html = t.render(Context({"page_name":page_name, "content":content}))
+   return HttpResponse(html)

- :remove 
+ :add
于 2011-08-10T14:41:39.000 回答