views 业务处理逻辑-526互联

from django.shortcuts import render,redirect
from firstapp import models
# Create your views here.
from firstapp.models import UserInfo


def fristhtml(requset):
    if requset.method =="GET":
        list_info = models.UserInfo.objects.all()
        return render(requset,"index.html",{"list_info":list_info})

#登录
def Login(request):
    if request.method == "GET":
      return render(request,"login.html")
    phone=request.POST.get("phone")
    pwd=request.POST.get("pwd")
    user=models.UserInfo.objects.filter(phone=phone).first()
    if not user is None:
        if user.pwd==pwd:
           request.session["info"]={"name":user.name,"id":user.id}
           request.session.set_expiry(60*60*6)
           return redirect('/index')
        else:
           return render(request, 'login.html', {"error_msg": "密码不正确"})
    else:
        return render(request, 'login.html', {"error_msg": "用户不存在"})

        # 登录成功跳转到我主页

 #注册
def register(request):
    if request.method =="GET":
        return render(request,"register.html")
    user=request.POST.get("user")
    pwd=request.POST.get("pwd")
    pwd1=request.POST.get("pwd1")
    phone=request.POST.get("phone")
    print(user)
    phones = list(UserInfo.objects.values_list('phone',flat=True))
    print(phones)
    if pwd ==pwd1:
        if phone in phones:
            return render(request, "register.html", {"error_msg": "用户已存在"})
        else:
            models.UserInfo.objects.create(name=user,pwd=pwd,phone=phone)
            return render(request,"register.html",{"error_msg": "注册成功"})
    else:
       return render(request,"register.html",{"error_msg": "两次密码不一致，请重新输入"})
#主页
def index(request):
    #models.UserInfo.
    '''
    bookname=request.POST.get("bookname")
    print(bookname)
    if bookname:
        info = models.BookInfo.objects.filter(title=bookname).first()
        return render(request, "select.html", {"list_info": info})
'''
    if request.method == "GET":
        id = request.GET.get("nid")
        print(id)
        if id:
            models.BookInfo.objects.filter(id=id).delete()
        list_info = models.BookInfo.objects.all()
        return render(request, "book.html", {"list_info": list_info})
    bookname = request.POST.get("bookname")
    print(bookname)
    if bookname:
        info = models.BookInfo.objects.filter(title__contains=bookname)
        if info:
            return render(request, "book.html", {"list_info": info})
        else:
            return render(request, "book.html", {"error_msg": "没有此书籍"})
    else:
        list_info = models.BookInfo.objects.all()
        print(len(list_info))
        return render(request, "book.html", {"list_info": list_info})
#添加书籍
def addbook(request):
    if request.method == "GET":
      return render(request,"addbook.html")
    title=request.POST.get("title")
    name=request.POST.get("name")
    time=request.POST.get("time")
    price=request.POST.get("price")
    models.BookInfo.objects.create(title=title,name=name,time=time,price=price)
    return render(request,"addbook.html")
#修改书籍
def update(request):
    id = request.GET.get("nid")
    '''
    if id:
       print(id)
       info=models.BookInfo.objects.filter(id=id).first()
       print(info.name)
       return render(request, "update.html", {"info": info})
    if request.method == "GET":
      return render(request,"update.html")
      '''
    if request.method == "GET":
        info = models.BookInfo.objects.filter(id=id).first()
        return render(request,"update.html",{"info": info})
    title = request.POST.get("title")
    print(title)
    name = request.POST.get("name")
    time = request.POST.get("time")
    price = request.POST.get("price")
    models.BookInfo.objects.filter(id=id).update(title=title, name=name, time=time, price=price)
    return redirect('/index')

def delect(request):
    request.session.clear()
    return render(request, 'login.html')