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password并password_repeat匹配。我该怎么做呢?
email
password
password_repeat
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:
clean()
forms
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。
clean_message()
essage