python - 使用空字段和空白字段创建 Django 表单

Question

我正在尝试创建一个表单，其中两个字段都是可选的，但是，在设置 null 和 blank 时我总是收到错误消息。我做错了什么？

错误

super(CharField, self).__init__(*args, **kwargs)
TypeError: __init__() got an unexpected keyword argument 'blank'

表单.py

class EditProfile(forms.Form):
    """
    A form that lets a user change their profile information
    """
        first_name = forms.CharField(
        label=("Fornavn"),
        strip=False,
        blank=True,
        null=True
    )
    last_name = forms.CharField(
        label=("Efternavn"),
        strip=False,
        blank=True,
        null=True,
    )
    def __init__(self, user, *args, **kwargs):
        self.user = user
        super().__init__(*args, **kwargs)

    def save(self, commit=True):
        first_name = self.cleaned_data["first_name"]
        last_name = self.cleaned_data["last_name"]
        self.user.first_name = first_name
        self.user.last_name = last_name
        if commit:
            self.user.save()
        return self.user

Answer 1

正如@danielcorreia 所说，您不在表单中使用blank，而是使用required = False。

class EditProfile(forms.Form):
    """
    A form that lets a user change their profile information
    """
        first_name = forms.CharField(
        label=("Fornavn"),
        strip=False,
        required=False
    )
    last_name = forms.CharField(
        label=("Efternavn"),
        strip=False,
        required=False
    )
    def __init__(self, user, *args, **kwargs):
        self.user = user
        super().__init__(*args, **kwargs)

    def save(self, commit=True):
        first_name = self.cleaned_data["first_name"]
        last_name = self.cleaned_data["last_name"]
        self.user.first_name = first_name
        self.user.last_name = last_name
        if commit:
            self.user.save()
        return self.user