1、views.py中

from django.shortcuts import render,redirect,HttpResponse

# Create your views here.

from django.contrib import auth

def login(request):

if request.method=="POST":

user=request.POST.get("user")

pwd=request.POST.get("pwd")

user=auth.authenticate(username=user,password=pwd)

if user:

auth.login(request,user) # request.user

return redirect("/index/")

return render(request,"login.html")

from .models import *

import datetime

def index(request):

date=datetime.datetime.now().date()

book_date=request.GET.get("book_date",date)

print("book_date",book_date)

time_choices=Book.time_choices

room_list=Room.objects.all()

book_list=Book.objects.filter(date=book_date)

print("time_choices",time_choices)

htmls=""

for room in room_list:

htmls+="

{}({})".format(room.caption,room.num)

for time_choice in time_choices:

book=None

flag=False

for book in book_list:

if book.room.pk==room.pk and book.time_id==time_choice[0]:

#意味这个单元格已被预定

flag=True

break

if flag:

if request.user.pk==book.user.pk:

htmls += "{}".format(room.pk, time_choice[0],book.user.username)

else:

htmls += "{}".format(room.pk, time_choice[0],

book.user.username)

else:

htmls+="".format(room.pk,time_choice[0])

htmls+=""

# print(htmls)

return render(request,"index.html",locals())

import json

def book(request):

# print("request.POST",request.POST)

post_data=json.loads(request.POST.get("post_data")) # {"ADD":{"1":["5"],"2":["5","6"]},"DEL":{"3":["9","10"]}}

# print("post_data", post_data)

choose_date=request.POST.get("choose_date")

res={"state":True,"msg":None}

try:

# 添加预定

#post_data["ADD"] : {"1":["5"],"2":["5","6"]}

book_list=[]

for room_id,time_id_list in post_data["ADD"].items():

for time_id in time_id_list:

book_obj=Book(user=request.user,room_id=room_id,time_id=time_id,date=choose_date)

book_list.append(book_obj)

Book.objects.bulk_create(book_list)

# 删除预定

from django.db.models import Q

# post_data["DEL"]: {"2":["2","3"]}

# print("post_data['DEL']:", post_data["DEL"].items())

remove_book = Q()

for room_id,time_id_list in post_data["DEL"].items():

temp = Q()

for time_id in time_id_list:

temp.children.append(("room_id",room_id))

temp.children.append(("time_id",time_id))

temp.children.append(("user_id",request.user.pk))

temp.children.append(("date",choose_date))

remove_book.add(temp,"OR")

if remove_book:

Book.objects.filter(remove_book).delete()

except Exception as e:

res["state"]=False

res["msg"]=str(e)

return HttpResponse(json.dumps(res))

2、HTML

Index

酒店房间预定

房间/时间

{% for time_choice in time_choices %}

{{ time_choice.1 }}

{% endfor %}

{{ htmls|safe }}

保存

3、model.py中

from django.db import models

# Create your models here.

from django.db import models

from django.contrib.auth.models import AbstractUser

class UserInfo(AbstractUser):

tel=models.CharField(max_length=32)

class Room(models.Model):

"""

会议室表

"""

caption = models.CharField(max_length=32)

num = models.IntegerField() # 容纳人数

def __str__(self):

return self.caption

class Book(models.Model):

"""

会议室预定信息

"""

user = models.ForeignKey('UserInfo',on_delete=models.CASCADE)

room = models.ForeignKey('Room',on_delete=models.CASCADE)

date = models.DateField()

time_choices = (

(1, '8:00'),

(2, '9:00'),

(3, '10:00'),

(4, '11:00'),

(5, '12:00'),

(6, '13:00'),

(7, '14:00'),

(8, '15:00'),

(9, '16:00'),

(10, '17:00'),

(11, '18:00'),

(12, '19:00'),

(13, '20:00'),

)

time_id = models.IntegerField(choices=time_choices)

class Meta:

unique_together = (

('room','date','time_id'),

)

def __str__(self):

return str(self.user)+"预定了"+str(self.room)

里面用到一个日历插件datetimepicker

效果图