rest-auth 中密码更改序列化程序中的更改错误

Question

我正在使用 Django rest-auth 为我的注册、密码更改等设置端点。我正在使用包含旧密码、新密码和确认密码的密码更改端点。我正在尝试覆盖原始序列化程序中的某些内容，例如如果字段不正确，则添加我自己的错误消息。但是，我难以覆盖的一条错误消息是字段是否为空白。每次默认的错误信息都是这样出现的：

{
    "old_password": [
        "This field may not be blank."
    ],
    "new_password1": [
        "This field may not be blank."
    ],
    "new_password2": [
        "This field may not be blank."
    ]
}

如果该字段为空白，我想实现我自己的错误消息，但是我无法做到。这是我创建的序列化程序：

class PasswordChange(PasswordChangeSerializer):

    set_password_form_class = SetPasswordForm

    def validate_old_password(self, value):
        invalid_password_conditions = (
            self.old_password_field_enabled,
            self.user,
            not self.user.check_password(value)
        )

        if all(invalid_password_conditions):
            raise serializers.ValidationError('The password you entered is invalid.')
        return value

这是表单类：

class PasswordForm(ChangePasswordForm):

    oldpassword = PasswordField(label=_("Current Password"))
    password1 = SetPasswordField(label=_("New Password"))
    password2 = PasswordField(label=_("Confirm New Password"))

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields['oldpassword'].widget = forms.PasswordInput(attrs={"placeholder": ""})
        self.fields['password1'].widget = forms.PasswordInput(attrs={"placeholder": ""})
        self.fields['password2'].widget = forms.PasswordInput(attrs={"placeholder": ""})

    def clean_oldpassword(self):
        if not self.user.check_password(self.cleaned_data.get("oldpassword")):
            raise forms.ValidationError(_("The password you entered is invalid."))

我这样做正确吗？如何更改字段为空白时显示的错误消息？

Answer 1

您可以使用serializers.CharField 的error_messages 属性。

class PasswordChange(PasswordChangeSerializer):

    my_default_errors = 
            {
             'blank': 'your_message',
             'required': 'your_message',
            }
    old_password = serializers.CharField(max_length=128, error_messages=my_default_errors)
    new_password1 = serializers.CharField(max_length=128, error_messages=my_default_errors)
    new_password2 = serializers.CharField(max_length=128, error_messages=my_default_errors)

    def validate_old_password(self, value):
        invalid_password_conditions = (
            self.old_password_field_enabled,
            self.user,
            not self.user.check_password(value)
        )

        if all(invalid_password_conditions):
            raise serializers.ValidationError('The password you entered is invalid.')
        return value