自定义表格验证

我有一个非常简单的表格:

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?我需要评估email该电子邮件地址当前没有用户存在。我还需要评估passwordpassword_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

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