捕获的URL参数形式 [英] Captured URL parameters in form

问题描述

我正在使用Userena，并且试图捕获URL参数并将其保存到表单中，但是我不知道该怎么做。

I am using Userena and I am trying to capture URL parameters and get them to my form but I'm lost how to do this.

我想要什么在我的模板中要做的事情是：

What I would like to do in my template is:

<a href="/accounts/signup/freeplan">Free Plan</a><br/>
<a href="/accounts/signup/proplan">Pro Plan</a><br/>
<a href="/accounts/signup/enterpriseplan">Enterprise Plan</a><br/>

然后在我的urls.py

And then in my urls.py

url(r'^accounts/signup/(?P<planslug>.*)/$','userena.views.signup',{'signup_form':SignupFormExtra}),

然后，理想情况下，我想在forms.py中使用该planslug来设置用户计划在配置文件中。

Then, ideally, I'd like to use that planslug in my forms.py to set the user plan in the profile.

我不知道如何将捕获的URL参数转换为自定义表单。我可以使用extra_context吗，是否必须覆盖Userena注册视图？

I'm lost how to get the captured URL parameter into the custom form. Can I use the extra_context, do I have to override the Userena signup view?

推荐答案

如果使用基于类的视图，则可以覆盖FormMixin类的def get_form_kwargs（）方法。在这里，您可以将所需的任何参数传递给表单类。

If you use class based views, you can overwrite the def get_form_kwargs() method of the FormMixin class. Here you can pass any parameters you need to your form class.

在urls.py中：

url(r'^create/something/(?P<foo>.*)/$', MyCreateView.as_view(), name='my_create_view'),

in views.py：

in views.py:

class MyCreateView(CreateView):
    form_class = MyForm
    model = MyModel

    def get_form_kwargs(self):
        kwargs = super( MyCreateView, self).get_form_kwargs()
        # update the kwargs for the form init method with yours
        kwargs.update(self.kwargs)  # self.kwargs contains all url conf params
        return kwargs

informs.py：

in forms.py:

class MyForm(forms.ModelForm):

    def __init__(self, foo=None, *args, **kwargs)
        # we explicit define the foo keyword argument, cause otherwise kwargs will 
        # contain it and passes it on to the super class, who fails cause it's not
        # aware of a foo keyword argument.
        super(MyForm, self).__init__(*args, **kwargs)
        print foo  # prints the value of the foo url conf param

希望这会有所帮助：-）

hope this helps :-)

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