Django

Question

文档功能 nice options for applying decorators such as login_required to Class Based Views。

但是，我不太清楚如何将特定参数与装饰器一起传递，在这种情况下我想 change the login_url of the decorator。

类似下面的内容，仅有效：

@login_required(login_url="Accounts:account_login")
@user_passes_test(profile_check)
class AccountSelectView(TemplateView):
    template_name='select_account_type.html'

Answer 1

你应该使用 @method_decorator with class methods:

A method on a class isn’t quite the same as a standalone function, so you can’t just apply a function decorator to the method – you need to transform it into a method decorator first. The method_decorator decorator transforms a function decorator into a method decorator so that it can be used on an instance method.

然后只需使用您需要的参数调用装饰器并将其传递给方法装饰器（通过调用可以接受参数的装饰器函数，您将在退出时获得实际的装饰器）。如果您要装饰 class 而不是 class 方法，请不要忘记将要装饰的方法的名称传递为关键字参数 name（例如 dispatch）本身：

@method_decorator(login_required(login_url="Accounts:account_login"),
                  name='dispatch')
@method_decorator(user_passes_test(profile_check), name='dispatch')
class AccountSelectView(TemplateView):
    template_name='select_account_type.html'

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python

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python-decorators