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如何更改“帐户已存在”？ Django allauth中的消息？

分类: 技术问答 • 2022-04-15 18:07:35
问题描述：

在尝试使用某个社交帐户登录但该电子邮件已有一个帐户时，显示以下消息：

When trying to log in with a social account while there already being an account with that email, the following message shows:

一个帐户该电子邮件地址已经存在。请先登录该帐户，然后再连接您的Google帐户。

现在，我想更改该消息。最初，我尝试覆盖 ACCOUNT_SIGNUP_FORM_CLASS ='mymodule.forms.MySignupForm'并为其赋予自己的 raise_duplicate_email_error 方法，但是

Now I would like to change that message. At first I tried to override ACCOUNT_SIGNUP_FORM_CLASS = 'mymodule.forms.MySignupForm' and gave it my own raise_duplicate_email_error method, but that method is never called.

表单如下：

class SignupForm(forms.Form):
    first_name = forms.CharField()
    last_name = forms.CharField()
    boolflag = forms.BooleanField()

    def raise_duplicate_email_error(self):
        # here I tried to override the method, but it is not called
        raise forms.ValidationError(
            _("An account already exists with this e-mail address."
              " Please sign in to that account."))

    def signup(self, request, user):
        # do stuff to the user and save it

所以问题是：如何更改该消息？

So the question is: How can I change that message?

答

如果您想要 raise_duplicate_email_error 要调用的方法，您必须从实际调用 self.raise_duplicate_email_error（）的表单类中继承！但是，您只是继承自 forms.Form ！

If you want the raise_duplicate_email_error method to be called you must inherit from a form class that actually calls self.raise_duplicate_email_error()! However you are just inheriting from forms.Form!

让我们看一下 forms.py ，位于 https://github.com/pennersr/django-allauth/blob/master/allauth/account/forms.py 。我们可以看到 raise_duplicate_email_error 是 BaseSignupForm 的方法（从其 clean_email 方法）。

Let's take a look at the code of forms.py at https://github.com/pennersr/django-allauth/blob/master/allauth/account/forms.py. We can see that raise_duplicate_email_error is a method of BaseSignupForm (and is called from its clean_email method).

所以您需要从 allauth.account.forms.BaseSignupForm 继承>或 allauth.account.forms.SignupForm （也继承自 BaseSignupForm ，并向其中添加更多字段）。

So you need to inherit from either allauth.account.forms.BaseSignupForm or allauth.account.forms.SignupForm (which also inherits from BaseSignupForm and adds some more fieldds to it).

在OP发表评论后进行更新（ BaseSignupForm 源自 _base_signup_form_class（）函数，该函数本身会导入 SIGNUP_FORM_CLASS设置）中定义的表单类：嗯，您是对的。问题是 BaseSignupForm 的 raise_duplicate_email_error 和 clean_email 方法请勿通过super调用其祖先的同名方法（因此永远不会调用您的 raise_duplicate_email_error ）。

Update after OP's comment (that the BaseSignupForm is derived from the _base_signup_form_class() function, that itself imports the form class defined in the SIGNUP_FORM_CLASS setting ): Hmm you are right. The problem is that the raise_duplicate_email_error and clean_email methods of BaseSignupForm don't call the same-named methods of their ancestors through super (so your raise_duplicate_email_error is never called).

让我们看看视图的作用：如果您在网址中添加了 url（r'^ accounts /'，include（'allauth.urls'））行。 py（这是django-allauth的常规操作），您会看到 url（r ^ signup / $，views.signup，name = account_signup）行，在文件 https：// github中.com / pennersr / django-allauth / blob / 13edcfef0d7e8f0de0003d6bcce7ef58119a5945 / allauth / account / urls.py ，然后在文件
https：// github.com/pennersr/django-allauth/blob/13edcfef0d7e8f0de0003d6bcce7ef58119a5945/allauth/account/views.py 中，注册的定义为 signup = SignupView.as_view（）。因此，让我们重写 SignupView 以使用我们自己的表单，然后将我们的类视图用于 account_sigunp ！

Let's see what the view does: If you have added the line url(r'^accounts/', include('allauth.urls')), to your urls.py (which is the usual thing to do for django-allauth), you'll see the line url(r"^signup/$", views.signup, name="account_signup"), in the file https://github.com/pennersr/django-allauth/blob/13edcfef0d7e8f0de0003d6bcce7ef58119a5945/allauth/account/urls.py and then in the file https://github.com/pennersr/django-allauth/blob/13edcfef0d7e8f0de0003d6bcce7ef58119a5945/allauth/account/views.py you'll see the definition of signup as signup = SignupView.as_view(). So let's override SignupView to use our own form and then use our class view for the account_sigunp !

操作方法如下：

a。创建继承 SignupView 并覆盖表单类的自定义视图

a. Create your custom view that inherits SignupView and overrides the form class


class CustomFormSignupView(allauth.accounts.views.SignupView):
    form_class = CustomSignupForm

b。创建一个自定义表单，该表单继承自 SignupForm 并覆盖电子邮件验证消息

b. Create a custom form that inherits from SignupForm and overrides the email validation message


class CustomSignupForm(allauth.accounts.forms.SignupForm ):
    def raise_duplicate_email_error(self):
        # here I tried to override the method, but it is not called
        raise forms.ValidationError(
            _("An account already exists with this e-mail address."
              " Please sign in to that account."))

c。在您自己的urls.py中，在之后 include（'allauth.urls'）中添加以下代码，以覆盖 account_signup 网址

c. In your own urls.py add the following after include('allauth.urls') to override the account_signup url


    url(r'^accounts/', include('allauth.urls')),
    url(r"^accounts/signup/$", CustomFormSignupView.as_view(), name="account_signup"),``

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