基于类的视图传递参数 [英] class based view passing parameters

问题描述

我刚刚开始使用基于类的视图，并且尝试将参数传递给基于类的视图，如下所示:

I have just started using Class-based views and I am trying to pass the parameters to class-based view as:

return HttpResponseRedirect(reverse('myView'), kwargs={'method': 'learning'})

我的看法是:

class MyView(View):
    form_class = MyForm
    initial = {'key': 'value'}
    template_name = 'algoRunning.html' 

    def dispatch(self, request, *args, **kwargs):
        print (kwargs['method'])
        data = self.readFile('myFile.txt')
        context = {'result': data}
        return render(request, self.template_name, context)

    def readFile(self, filePath):
        # read data
        return data

我的网址格式如下:

urlpatterns = [...    
url(r'^learning/(?P<method>[a-z]+)/$', my_views.MyView.as_view(), name='myView'),
..]

但是，它给了我以下错误

But, it gives me following error

Reverse for 'myView' with no arguments not found. 1 pattern(s) tried: ['learning/(?P<method>[a-z]+)/$']

我在做什么错??

推荐答案

您将括号放在错误的位置. kwargs 是 reverse 的参数，而不是 HttpResponseRedirect 的参数.

You have the parentheses in the wrong place. kwargs is a parameter to reverse, not to HttpResponseRedirect.

return HttpResponseRedirect(reverse('myView', kwargs={'method': 'learning'}))

请注意，可以使用 redirect 快捷方式将其缩短:

Note, this could be shortened by using the redirect shortcut:

return redirect('myView', method='learning')

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