Django项目之会议室预预订：

界面效果展示：

1、创建超级管理员，实现预定界面功能

2、预定界面：

（一）基于pymysql设计数据表结构，理清前后端与用户交互逻辑。（用户表，会议室表，预定内容存储表）

　　1、settings设置默认数据库为mysql

DATABASES = {

    'default': {

    'ENGINE': 'django.db.backends.mysql',

    'NAME':'dbname',

    'USER': 'root',

    'PASSWORD': '',

    'HOST': '',

    'PORT': '',

    }

}

　　2、model表设计：

 from django.db import models

 from django.contrib.auth.models import AbstractUser

 # Create your models here.

 class UserInfo(AbstractUser):

     tel = models.CharField(max_length=32)

 class Room(models.Model):

     caption = models.CharField(max_length=32)

     num = models.IntegerField()     #容纳人数

     def __str__(self):

         return self.caption

 class Book(models.Model):

     user = models.ForeignKey(to="UserInfo",on_delete=models.CASCADE)

     room = models.ForeignKey(to="Room",on_delete=models.CASCADE)

     date = models.DateField()

     time_choice = (

         (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(time_choice)

     class Meta:

         unique_together = (

             ("room","date","time_id"),

         )

     def __str__(self):

         return "{}预定了{}".format(self.user,self.room)

2、梳理urls路由系统、利用内置的auth验证模块编写用户登录。利用js在后端处理用户操作，ajax技术发送request数据。

 from django.shortcuts import render,redirect,HttpResponse

 from django.contrib import auth

 from app01 import models

 import datetime

 import json

 # Create your views here.

 def login(request):　　#设置登录处理函数

     if request.method == "POST":

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

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

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

         if user:

             auth.login(request,user)

             return redirect("/index/")

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

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

 def index(request):

     if not request.user.is_authenticated:

         return redirect("/login/")

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

     time_choice=models.Book.time_choice

     room_obj = models.Room.objects.all()

     book_obj = models.Book.objects.filter(date=date)

     htmls = ""

     for room in room_obj:

         htmls += "<tr><td>{}</td>".format(room)

         for time in time_choice:

             is_choose = False

             for book in book_obj:

                 if book.time_id == time[0] and book.room_id == room.pk:   #判断是否有人预订

                     is_choose = True

                     break

             if is_choose:

                 if request.user.pk == book.user_id:　　#在python代码层面处理模板json数据
51                     htmls += "<td class='my_active item' time_id={} room_id={}>{}</td>".format(time[0],room.pk,book.user)
                 else:

                     htmls += "<td class='active item' time_id={} room_id={}>{}</td>".format(time[0],room.pk,book.user)

             else:

                 htmls += "<td class='item' time_id={} room_id={}></td>".format(time[0],room.pk)

         htmls += "</tr>"

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

 def manage(request):

     if request.method == "POST":

         data = json.loads(request.POST.get("post_data"))

         print(data)

         for room_id,time_id_list in data["del"].items():

             for time_id in time_id_list:

                 models.Book.objects.filter(user_id=request.user.pk,room_id=room_id,time_id=time_id,date=date).delete()

         for room_id,time_id_list in data["add"].items():

             for time_id in time_id_list:

                 models.Book.objects.create(user_id=request.user.pk,room_id=room_id,time_id=time_id,date=date)

         return HttpResponse(json.dumps("ok"))

3、编写templates模板，利用bootstrap丰富起始界面，在python代码层面处理模板json数据。

 <!DOCTYPE html>

 <html lang="en">

 <head>

     <meta charset="UTF-8">

     <title>Title</title>

     <link rel="stylesheet" href="/static/bootstrap/css/bootstrap.min.css">

     <style>

         .my_active{background-color: red}

         .active{background-color: silver}

         .temp_active{background-color: #2aabd2}

     </style>

 </head>

 <body>

 <h1>会议室预订</h1>

 <table class="table table-bordered">

     <tr>

         <th>会议室/时间</th>

         {% for time in time_choice %}

             <th>{{ time.1 }}</th>

         {% endfor %}

     </tr>

     {{ htmls|safe }}

 </table>

 <button>保存</button>

 {% csrf_token %}

 <script src="/static/jquery.js"></script>

 <script src="/static/bootstrap/js/bootstrap.js"></script>

 <script>

     var post_data = {"add":{},"del":{}};

     //为td标签绑定点击事件

     $(".item").click(function(){

         var time_id = $(this).attr("time_id");

         var room_id = $(this).attr("room_id");

         if($(this).hasClass("my_active")){        //如果是登录人预订的时间

             $(this).removeClass("my_active");

             $(this).text("");

             if(post_data["del"][room_id]){

                 post_data["del"][room_id].push(time_id)

             }else{

                 post_data["del"][room_id] = [time_id,];

             }

         }else if($(this).hasClass("active")){        //如果是别人预订的时间

             alert("已经被预订！")

         }else if($(this).hasClass("temp_active")){

             $(this).removeClass("temp_active")

             $(this).text("")

             post_data["add"][room_id].splice(jQuery.inArray(time_id,post_data["add"][room_id]),1)

         }else{                                   //如果没人预订

             $(this).addClass("temp_active");

             $(this).text("{{ request.user.username }}")

             if(post_data["add"][room_id]){

                 post_data["add"][room_id].push(time_id)

             }else{

                 post_data["add"][room_id] = [time_id,];

             }

         }

         console.log(post_data)

     })

     var csrf = $("[name='csrfmiddlewaretoken']").val()

     $("button").click(function(){

         $.ajax({

             url:"/manage/",

             type:"post",

             data:{

                 post_data:JSON.stringify(post_data),

                 csrfmiddlewaretoken:csrf,

             },

             dataType:"json",

             success:function(arg){

                 console.log(arg)

                 location.href = ""

             }

         })

     })

 </script>

 </body>

 </html>

巴特西

python的web框架---Django项目

Django项目之会议室预预订：

界面效果展示：

（一）基于pymysql设计数据表结构，理清前后端与用户交互逻辑。（用户表，会议室表，预定内容存储表）

1、settings设置默认数据库为mysql

2、model表设计：

2、梳理urls路由系统、利用内置的auth验证模块编写用户登录。利用js在后端处理用户操作，ajax技术发送request数据。

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