我有一个非常简单的形式:
from django import forms
class InitialSignupForm(forms.Form):
email = forms.EmailField()
password = forms.CharField(max_length=255, widget = forms.PasswordInput)
password_repeat = forms.CharField(max_length=255, widget = forms.PasswordInput)
def clean_message(self):
email = self.clean_data.get('email', '')
password = self.clean_data.get('password', '')
password_repeat = self.clean_data.get('password_repeat', '')
try:
User.objects.get(email_address = email)
raise forms.ValidationError("Email taken.")
except User.DoesNotExist:
pass
if password != password_repeat:
raise forms.ValidationError("The passwords don't match.")
这是自定义表单验证的完成方式吗?我需要在email
上评估当前没有用户使用该电子邮件地址。我还需要评估password
和password_repeat
匹配。我该怎么做呢?
答案 0 :(得分:104)
要验证单个字段,您可以在表单中使用clean_FIELDNAME()方法,因此对于电子邮件:
def clean_email(self):
email = self.cleaned_data['email']
if User.objects.filter(email=email).exists():
raise ValidationError("Email already exists")
return email
然后,对于相互依赖的共同依赖字段,您可以覆盖在所有字段(如上面clean()
)单独验证后运行的表单email
方法:
def clean(self):
form_data = self.cleaned_data
if form_data['password'] != form_data['password_repeat']:
self._errors["password"] = ["Password do not match"] # Will raise a error message
del form_data['password']
return form_data
我不确定你从哪里得到clean_message()
,但看起来这是一个message
字段的验证方法,它似乎不存在于你的表单中。
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