forms.py
from django import forms
from django.core.exceptions import ValidationError
from django.forms.utils import ErrorList
class RegisterForm(forms.Form):
def __init__(self, data=None, files=None, auto_id='id_%s', prefix=None,
initial=None, error_class=ErrorList, label_suffix=None,
empty_permitted=False, field_order=None, use_required_attribute=None, renderer=None,request=None):
super().__init__(data,files,auto_id,prefix,label_suffix,empty_permitted,field_order,use_required_attribute,renderer)
self.request = request
username = forms.CharField(min_length=3,required=True,error_messages={
'required':'用户名必须输入',
'min_length':'用户名至少3个字符'
})
password = forms.CharField(min_length=3,required=True,error_messages={
'required': '密码名必须输入',
'min_length': '密码至少3个字符'
})
confirm = forms.CharField(min_length=3,required=True,error_messages={
'required': '密码名必须输入',
'min_length': '密码至少3个字符'
})
regtime = forms.DateTimeField(required=False,error_messages={
'invalid':'日期格式错误',
})
sex = forms.BooleanField(required=False)
# 单个字段验证: clean_xxxx
def clean_password(self):
password = self.cleaned_data.get('password')
if password and password.isdigit():
raise ValidationError("密码不能是纯数字")
return password
# 全局验证
def clean(self):
password = self.cleaned_data.get('password',None)
confirm = self.cleaned_data.get('confirm','')
print(password,confirm)
if password != confirm:
raise ValidationError({'confirm':"两次密码输入不一致"})
return self.cleaned_data
views.py
from django.contrib.auth import authenticate, login,logout
from django.contrib.auth.decorators import login_required
from django.http import HttpResponse
from django.shortcuts import render, redirect
# Create your views here.
from django.urls import reverse
from App02.forms import RegisterForm
from App02.models import User
def register(request):
if request.method == "POST":
# 用提交的数据生成表单
form =RegisterForm(request.POST)
# 能通过验证，返回True，否则返回False
if form.is_valid():
# 进行业务处理
data = form.cleaned_data
data.pop("confirm")
# 获取指定字段
# username = form.cleaned_data.get('username','')
# print(data,type(data))
# 如果forms中表单的字段名和models模型的字段名一致
res = User.objects.create(**data)
# 如果forms中表单的字段名和models模型的字段名不一致
# res = User.objects.create(username=username,password=form.cleaned_data.get('password'))
if res:
return HttpResponse("注册成功")
else:
print(form.__dict__)
# 验证不成功，把错误信息渲染到前端页面
return render(request, "register.html",{'form':form})
return render(request,"register.html")
