django 用model来简化form

from django import forms

class LoginForm(forms.Form):
    username = forms.CharField(required=True)
    password = forms.CharField(required=True, min_length=5)

class UserInfoForm(forms.ModelForm):
    class Meta:
        #指定使用的model
        model = UserProfile
        #需要验证的字段
        fields = ['nick_name', 'gender', 'birthday', 'address', 'mobile']