django(五)model的增删改

一：访问平台里的数据

单多行注释就一个组合键：选中+Ctrl+/

输入程序：

all_messages = UserMessage.objects.all()
for message in all_messages:
      print(message.name)
return render(request,'message_form.html')

读取全部的数据：----->遍历数据-------》输出数据的name；

二.上传一组数据

上传一组数据，然后到数据库里面保存；

user_message = UserMessage()
user_message.name = "boddy"
user_message.message = "hollowor12"
user_message.address = "上海"
user_message.email = "1719655657@qq.com"
user_message.save()

三：将网页上的数据导入到数据库中

1.填写信息，邮箱必须是正确格式的邮箱

2.跳出的警告

3.对程序进行修改

4.对view进行修改；在urls.py，其实已经确立了我们接力的form界面与getform的关联

#_*_ coding:utf-8 _*_
from django.shortcuts import render
from .models import UserMessage
# Create your views here.
def getform(request):
    if request.method == "POST" :
        name =request.POST.get('name','')
        message= request.POST.get("message", '')
        address = request.POST.get('address', '')
        email= request.POST.get('email','')
        user_message = UserMessage()
        user_message.name = name
        user_message.message = message
        user_message.address =address
        user_message.email = email
        user_message.save()


    # all_messages = UserMessage.objects.all()
    # for message in all_messages:
    #     print(message.name)

    return render(request,'message_form.html')

5.成功