自定义表格验证
我有一个非常简单的表格:
from django import formsclass 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?我需要评估email
该电子邮件地址当前没有用户存在。我还需要评估password
并password_repeat
匹配。我该怎么做呢?
回答:
要单独验证单个字段,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,你可以覆盖在单独验证clean()
所有字段(email如上)之后运行的forms
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
我不确定你从哪里来clean_message()
,但是看起来这是为message
你的表单中似乎不存在的字段设计的一种验证方法。
以上是 自定义表格验证 的全部内容, 来源链接: utcz.com/qa/410655.html