class UserInfo(models.Model):user=models.CharField(max_length=32)pwd=models.CharField(max_length=32)email=models.CharField(max_length=32)

from app01.models import UserInfo
def reg(request):if request.method == "POST":form =  UserForm(request.POST)
#校验数据if form.is_valid():print(form.cleaned_data)UserInfo.objects.create(**form.cleaned_data)return HttpResponse("OK")else:errors=form.errorsprint(form.errors.get('__all__'))if form.errors.get("__all__"):g_errors = form.errors.get('__all__')[0]return render(request,"reg.html",locals())else:form=UserForm()return render(request,"reg.html",locals())#在views中直接创建UserForm表
from django.forms import widgetsclass UserForm(forms.Form):msg={"required":"该字段不能为空"}user=forms.CharField(min_length=5,label="用户名",error_messages=msg,widget=widgets.TextInput(attrs={"class":"form-control"}))pwd=forms.CharField(error_messages=msg,label="密码",min_length=5,widget=widgets.PasswordInput(attrs={"class":"form-control"}))r_pwd = forms.CharField(error_messages=msg,min_length=5,label="确认密码",widget=widgets.PasswordInput(attrs={"class": "form-control"}))email=forms.EmailField(error_messages={"invalid":"邮箱格式错误"},label="邮箱",widget=widgets.EmailInput(attrs={"class":"form-control"}))
#定义钩子def clean_user(self):val=self.cleaned_data.get("user")ret=UserInfo.objects.filter(user=val).first()if not ret:return valelse:raise ValidationError("用户名已存在！")

def clean_pwd(self):val=self.cleaned_data.get("pwd")if val.isdigit():raise ValidationError("密码不能是纯数字！")else:return val
def clean(self):pwd=self.cleaned_data.get("pwd")r_pwd=self.cleaned_data.get("r_pwd")if pwd and r_pwd:if pwd==r_pwd:return self.cleaned_dataelse:raise ValidationError("两次密码不一致！")else:return self.cleaned_data