如何将请求传递到django表单？

如何将请求传递到django表单

我正在创建一个django更新配置文件表单，用户可以在其中更改配置文件电子邮件。我想检查表单中的电子邮件是否属于已登录用户，如果不是，则在将其设置为新用户电子邮件之前，我想检查此电子邮件是否被其他用户使用

这是我的代码，这个self.request.user.email不起作用：

def clean_email(self):
        email = self.cleaned_data.get("email")
        owns_email = (email != self.request.user.email)
        if User.objects.filter(email__icontains=email).exists() and owns_email:
            raise forms.ValidationError("This email aldready registered.")
        return email

---

因此，也许有更好的解决方案来解决我的问题？

表单没有

请求

对象。您需要在构造函数中手动传递当前登录的用户。您的表单应该如下所示：

class UserProfileForm(forms.Form):
    user = None

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop('user')
        super(UserProfileForm, self).__init__(*args, **kwargs)

    ...
    def clean_email(self):
        email = self.cleaned_data['email']
        owns_email = (email != self.user.email)
        if User.objects.filter(email__icontains=email).exists() and owns_email:
            raise forms.ValidationError('This email already registered.')
        return email
    ...

class UserProfileUpdateView(UpdateView):
...
    def get_form_kwargs(self):
    '''This goes in the Update view'''
        kwargs = super(UserProfileUpdateView, self).get_form_kwargs() #put your view name in the super
        user = self.request.user

        if user:
            kwargs['user'] = user

        return kwargs

在视图中实例化表单：

def edit_profile(request):
    form = UserProfileForm(user=request.user)
    ...

---

表单没有

请求

对象。您需要在构造函数中手动传递当前登录的用户。您的表单应该如下所示：

class UserProfileForm(forms.Form):
    user = None

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop('user')
        super(UserProfileForm, self).__init__(*args, **kwargs)

    ...
    def clean_email(self):
        email = self.cleaned_data['email']
        owns_email = (email != self.user.email)
        if User.objects.filter(email__icontains=email).exists() and owns_email:
            raise forms.ValidationError('This email already registered.')
        return email
    ...

class UserProfileUpdateView(UpdateView):
...
    def get_form_kwargs(self):
    '''This goes in the Update view'''
        kwargs = super(UserProfileUpdateView, self).get_form_kwargs() #put your view name in the super
        user = self.request.user

        if user:
            kwargs['user'] = user

        return kwargs

在视图中实例化表单：

def edit_profile(request):
    form = UserProfileForm(user=request.user)
    ...

---

由于您使用的是cbv，因此可以使用FormMixin中的函数

它可能看起来像这样：

class UserProfileForm(forms.Form):
    user = None

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop('user')
        super(UserProfileForm, self).__init__(*args, **kwargs)

    ...
    def clean_email(self):
        email = self.cleaned_data['email']
        owns_email = (email != self.user.email)
        if User.objects.filter(email__icontains=email).exists() and owns_email:
            raise forms.ValidationError('This email already registered.')
        return email
    ...

class UserProfileUpdateView(UpdateView):
...
    def get_form_kwargs(self):
    '''This goes in the Update view'''
        kwargs = super(UserProfileUpdateView, self).get_form_kwargs() #put your view name in the super
        user = self.request.user

        if user:
            kwargs['user'] = user

        return kwargs

然后，根据上面的代码，您的表单类将如下所示：

class UserProfileUpdateForm:
...
    def __init__(self, *args, **kwargs):
        if kwargs.get('user'):
            self.user = kwargs.pop('user', None)
        super(UserProfileUpdateForm, self).__init__(*args,**kwargs)

    def clean_email(self):
        email = self.cleaned_data.get("email")
        owns_email = (email != self.user.email)
        if User.objects.filter(email__icontains=email).exists() and owns_email:
            raise forms.ValidationError("This email already registered.")
        return email

---

由于您使用的是cbv，因此可以使用FormMixin中的函数

它可能看起来像这样：

class UserProfileForm(forms.Form):
    user = None

    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop('user')
        super(UserProfileForm, self).__init__(*args, **kwargs)

    ...
    def clean_email(self):
        email = self.cleaned_data['email']
        owns_email = (email != self.user.email)
        if User.objects.filter(email__icontains=email).exists() and owns_email:
            raise forms.ValidationError('This email already registered.')
        return email
    ...

class UserProfileUpdateView(UpdateView):
...
    def get_form_kwargs(self):
    '''This goes in the Update view'''
        kwargs = super(UserProfileUpdateView, self).get_form_kwargs() #put your view name in the super
        user = self.request.user

        if user:
            kwargs['user'] = user

        return kwargs

然后，根据上面的代码，您的表单类将如下所示：

class UserProfileUpdateForm:
...
    def __init__(self, *args, **kwargs):
        if kwargs.get('user'):
            self.user = kwargs.pop('user', None)
        super(UserProfileUpdateForm, self).__init__(*args,**kwargs)

    def clean_email(self):
        email = self.cleaned_data.get("email")
        owns_email = (email != self.user.email)
        if User.objects.filter(email__icontains=email).exists() and owns_email:
            raise forms.ValidationError("This email already registered.")
        return email

---

您使用的是哪种视图？是cbv还是fbv？我使用的是基于类的视图。您使用的是哪种视图？它是cbv还是fbv？我使用基于类的视图。最简单的解决方案。只要记住在实例化类时将其交给用户即可。最简单的解决方案。只要记住在实例化该类时将其交给用户即可。