Django【基础篇-2】ORM 增删改查操作表

from django.shortcuts import render,HttpResponse,redirect
import os,sys
from django.views import View
from cmdb import models

# Create your views here.
User_dict ={
   "1":{"name":"大胖小子","age":18,"sex":"Man"},
   "2":{"name":"金虎","age":6,"sex":"Man"},
   "3":{"name":"妙音","age":5,"sex":"WoMan"},
   "4":{"name":"飞云","age":6,"sex":"Man"},
}
#主页
def index(request):
    return render(request,"index.html",{"User_dict":User_dict})


def login(request):
    if request.method == "GET":
        return render(request, "login.html")
    elif request.method == "POST":
        u=request.POST.get("user",None)
        p=request.POST.get("password",None)
        up=request.POST.get("update")
        update_msg = "更新%s密码成功！"%u
        if  models.UserInfo.objects.filter(username=u) and models.UserInfo.objects.filter(password=p):
            return render(request,‘zhuye.html‘,{"user":u})
        if  up =="更新":
            models.UserInfo.objects.filter(username=u).update(password=p)
            return render(request,‘login.html‘,{‘update_msg‘:update_msg})
        else:
            error_msg="用户名或密码错误"

    else:
        return  redirect("/index")
    return render(request, "login.html",{"error_msg":error_msg})

def zhuce(request):
    # if request.method == "GET":
    #     return render(request, "zhuce.html")
    # elif request.method == "POST":
    #     #radio
    #     radio = request.POST.get("gender")
    #     #chickbox
    #     chickbox = request.POST.getlist("favor")
    #     #select
    #     select=request.POST.getlist("city")
    #     #file
    #     send=request.FILES.get("send")
    #     print(send)
    #     file_path=os.path.join("upload",send.name)
    #     with open(file_path,mode="wb") as f:
    #         for i in send.chunks():
    #             f.write(i)
    # return render(request, "zhuce.html")
    if request.method == "GET":
        return render(request, "zhuce.html")
    elif request.method == "POST":
        username=request.POST.get("username")
        password=request.POST.get("password")
        models.UserInfo.objects.create(username=username,password=password)
        zhuce_msg = "注册成功！"
    return render(request, "zhuce.html",{"zhuce_msg":zhuce_msg})

class Home(View):

    def get(self,request):
        print(request.method)
        return render(request, "home.html")

    def post(self,request):
        u = request.POST.get("user", None)
        p = request.POST.get("pwd", None)
        if u == "root" and p == "123":
            return redirect(‘/index‘)
        else:
            error_msg = "用户名或密码错误"


        return render(request,"home.html", {"error_msg": error_msg})

def detail(request,nid):#通过url的nid参数传递过来，不用去request中的nid去获取值了
    detail_info=User_dict[nid]
    return render(request,"detail.html",{"detail_info":detail_info})

def orm(request):
    #创建
    #对UserInfo类（数据库表）进行增加操作
    username = request.POST.get("username")
    password = request.POST.get("password")
   # dic={‘username‘:username,‘password‘:password}
  #  models.UserInfo.objects.create(**dic)


    #models.UserInfo.objects.create(username=username,password=password) #推荐用这种添加数据库数据


    #obj = models.UserInfo(username="fuyuteng",password="123")
    #obj.save()创建数据第二种方法

    ‘‘‘查找所有‘‘‘
    #result=models.UserInfo.objects.all()
    ‘‘‘过滤查询username=root的所有符合查询的条件‘‘‘
    result = models.UserInfo.objects.filter(username=‘root‘)
    ‘‘‘删除‘‘‘
    delete=models.UserInfo.objects.filter(username=username,password=password).delete()#删除指定的  delete=models.UserInfo.objects.all().delete()#删除所有
    ‘‘‘update‘‘‘
    models.UserInfo.objects.update(password=password)#更新所有password的密码
    update=models.UserInfo.objects.filter(username=username).update(password=password)#更新指定用户名的密码

    return render(request,‘orm.html‘,{‘result‘:result})