Django:从Form子类中删除一个字段 [英] Django: Remove a field from a Form subclass
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问题描述
nickname = forms.CharField(max_length = 100)
username = forms.CharField(max_length = 100)
password = forms.CharField(widget = forms.PasswordInput)
class LoginFormWithoutNickname(LoginForm):
#我不想要这个字段昵称
昵称=无#??
有没有办法实现?
注意:我没有一个 ModelForm
,所以 Meta
exclude
不起作用。
解决方案
一个子类覆盖 init 方法:
class LoginFormWithoutNickname(LoginForm):
def __init __(self,* args,** kwargs):
super(LoginFormWithoutNickname,self).__ init __(* args,** kwargs)
self.fields.pop('nickname')
class LoginForm(forms.Form):
nickname = forms.CharField(max_length=100)
username = forms.CharField(max_length=100)
password = forms.CharField(widget=forms.PasswordInput)
class LoginFormWithoutNickname(LoginForm):
# i don't want the field nickname here
nickname = None #??
Is there a way to achieve this?
Note: i don't have a ModelForm
, so the Meta
class with exclude
doesn't work.
解决方案
You can alter the fields in a subclass by overriding the init method:
class LoginFormWithoutNickname(LoginForm):
def __init__(self, *args, **kwargs):
super(LoginFormWithoutNickname, self).__init__(*args, **kwargs)
self.fields.pop('nickname')
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