mrbs - 初识
一、mrbs
mrbs:(meeting room booking system)
会议室预订系统
二、效果
三、models
from django.db import models # Create your models here. 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):
"""
会议室预订信息
"""
user = models.ForeignKey("UserInfo", on_delete=models.CASCADE)
room = models.ForeignKey("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(choices=time_choice) class Meta:
unique_together = (
('room','date','time_id'),
) def __str__(self):
return str(self.user)+'预订了'+str(self.room)
models.py
知识点：
1.AbstractUser
AUTH_USER_MODEL = "app01.UserInfo"
class UserInfo(AbstractUser):
tel = models.CharField(max_length=32) 2.联合唯一 （time_choice）
time_choice = (
(1,'8:00'),
...
) 存的是key 显示的是value，且只能存key time_id = models.IntegerField(choices=time_choice) class Meta:
unique_together = (
('room','date','time_id'),
) 3.makemigrations / migrate 4.admin.py
admin.site.register(UserInfo)
admin.site.register(Book)
admin.site.register(Room) 5.createsuperuser
yuan yuan1234 / alex alex1234
四、login
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body> <form action="" method="post">
{% csrf_token %}
用户名：<input type="text" name="user">
密码： <input type="password" name="pwd">
<input type="submit">
</form> </body>
</html>
login.html
from django.contrib import admin
from django.urls import path from app01 import views urlpatterns = [
path('admin/', admin.site.urls),
path('login/', views.login),
path('index/', views.index),
path('book/', views.book),
]
urls.py
from django.shortcuts import render,HttpResponse,redirect
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')
views.py - login
知识点：
1.auth
from django.contrib import auth
user = auth.authenticate(username = user,password = pwd )
if user:
auth.login(request,user) # request.user
return redirect('/index/')
五、index
知识点：
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>会议室时间</th>
{% for time in time_choice %}
<th>{{ time.1 }}</th>
{% endfor %}
</tr>
</thead>
<tbody>
{{ htmls|safe }}
</tbody> </table>
1.后台渲染html,不在模板处理数据，因为后台更方便一些
time_choice = Book.time_choice room_list = Room.objects.all() # 当天
date = datetime.datetime.now().date() # 年月日 datefield = datetime.datetime()
book_date = request.GET.get('book_date', date) book_list = Book.objects.filter(date=book_date)
2.htmls
htmls = ""
for room in room_list:
htmls += "<tr><td>" + room.caption + "(" + str(room.num) + ")</td>"
for time in time_choice:
flag = False
for book in book_list:
if book.room.pk == room.pk and book.time_id == time[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 += "<td class='active item' room_id=" + str(room.pk) + " time_id=" + str(
time[0]) + ">" + book.user.username + "</td>"
else:
htmls += "<td class='another_active item' room_id=" + str(room.pk) + " time_id=" + str(
time[0]) + ">" + book.user.username + "</td>"
else:
htmls += "<td class='item' room_id=" + str(room.pk) + " time_id=" + str(time[0]) + "></td>" htmls += '</tr>' print(htmls)
六、book
前端 组织 数据：
// room_id 为键，time_id 为值 {1：[4,5],2:[4,] } {3:[9,10]}
var POST_DATA = {
"ADD":{},
"DEL":{}
};
// 为td 绑定 单击事件
function BindTd() {
$('.item').click(function () {
var room_id = $(this).attr('room_id');
var time_id = $(this).attr('time_id');
//取消预订
if($(this).hasClass('active')){
$(this).removeClass('active').empty();
if(POST_DATA.DEL[room_id]){
POST_DATA.DEL[room_id].push(time_id)
}else{
POST_DATA.DEL[room_id] = [time_id]
}
}
//临时取消预订
else if($(this).hasClass('td_active')){
$(this).removeClass('td_active');
{#POST_DATA.ADD[room_id].pop()#} //这个是删除最后一个 在这不对！
// 删除指定的 元素
POST_DATA.ADD[room_id].splice(POST_DATA.ADD[room_id].indexOf(time_id),1)
}else{ //添加预订
$(this).addClass('td_active');
if(POST_DATA.ADD[room_id]){
POST_DATA.ADD[room_id].push(time_id)
}else{
POST_DATA.ADD[room_id] = [time_id];
}
}
})
}
BindTd();
//发送 ajax
$('.keep').click(function () {
$.ajax({
url:'/book/',
type:'post',
headers:{"X-CSRFToken":$.cookie('csrftoken')},
data:{
choose_date:CHOOSE_DATE,
post_data:JSON.stringify(POST_DATA)
},
dataType:"json",
success:function (data) {
console.log(data);
if(data.state){
//预订成功
location.href = ''
}else{
alert('预订的房间已经被预订');
location.href=""
}
} })
});
。。。
后台 处理 数据：
1. json.loads()
2. 批量插入预订 数据
3. Q查询
4. 删除预订 数据
import json def book(request):
post_data = json.loads(request.POST.get('post_data'))
# {'ADD': {'1': ['5', '7'], '3': ['4']}, 'DEL': {'2': ['9']}} choose_date = request.POST.get("choose_date") res = {"state": True, "msg": None}
try:
# 添加预订
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) # 删除预订
from django.db.models import Q
# post_data["DEL"]: {"2":["2","3"]} 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))
方式1：
q=Q()
q.connection="or"
q.children.append("pk",1)
q.children.append("user_id",1)
q.children.append("room_id",1) Book.objects.filter(q) 方式2：
Book.objects.filter(Q(pk=1)|Q(user_id=1)|Q(room_id=1))
七、code
from django.shortcuts import render,HttpResponse,redirect
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):
time_choice = Book.time_choice room_list = Room.objects.all() # 当天
date = datetime.datetime.now().date() # 年月日 datefield = datetime.datetime()
book_date = request.GET.get('book_date', date)
book_list = Book.objects.filter(date=book_date) print('book_list', book_list)
htmls = ""
for room in room_list:
htmls += "<tr><td>" + room.caption + "(" + str(room.num) + ")</td>"
for time in time_choice: flag = False
for book in book_list:
if book.room.pk == room.pk and book.time_id == time[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 += "<td class='active item' room_id=" + str(room.pk) + " time_id=" + str(
time[0]) + ">" + book.user.username + "</td>"
else:
htmls += "<td class='another_active item' room_id=" + str(room.pk) + " time_id=" + str(
time[0]) + ">" + book.user.username + "</td>"
else:
htmls += "<td class='item' room_id=" + str(room.pk) + " time_id=" + str(time[0]) + "></td>" htmls += '</tr>' print(htmls) return render(request, 'index.html', locals()) import json def book(request):
post_data = json.loads(request.POST.get('post_data'))
# {'ADD': {'1': ['5', '7'], '3': ['4']}, 'DEL': {'2': ['9']}} choose_date = request.POST.get("choose_date") res = {"state": True, "msg": None}
try:
# 添加预订
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) # 删除预订
from django.db.models import Q
# post_data["DEL"]: {"2":["2","3"]} 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))
views.py
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>index</title>
<link rel="stylesheet" href="/static/bootstrap/css/bootstrap.css">
<script src="/static/js/jquery-1.12.4.min.js"></script>
<script src="/static/js/jquery.cookie.js"></script>
<script src="/static/datetimepicker/bootstrap-datetimepicker.min.js"></script>
<script src="/static/datetimepicker/bootstrap-datetimepicker.zh-CN.js"></script> <style type="text/css">
.active{background-color: green!important; color: white;}
.another_active{background-color: #336699;color: white;}
.td_active{background-color: lightblue;}
</style> </head>
<body> <h3>会议室预订，欢迎：{{ request.user.username }}</h3> <div class="calender pull-right">
<div class='input-group' style="width: 230px;">
<input type='text' class="form-control" id='datetimepicker11' placeholder="请选择日期"/>
<span class="input-group-addon">
<span class="glyphicon glyphicon-calendar">
</span>
</span> </div>
</div> <table class="table table-bordered table-striped">
<thead>
<tr>
<th>会议室时间</th>
{% for time in time_choice %}
<th>{{ time.1 }}</th>
{% endfor %}
</tr>
</thead>
<tbody>
{{ htmls|safe }} </tbody> </table>
<button class="btn btn-success pull-right keep">保存</button> <script type="text/javascript"> // 日期格式化方法
Date.prototype.yuan = function (fmt) { //author: meizz
var o = {
"M+": this.getMonth() + 1, //月份
"d+": this.getDate(), //日
"h+": this.getHours(), //小时
"m+": this.getMinutes(), //分
"s+": this.getSeconds(), //秒
"q+": Math.floor((this.getMonth() + 3) / 3), //季度
"S": this.getMilliseconds() //毫秒
};
if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
return fmt;
}; // room_id 为键，time_id 为值 {1：[4,5],2:[4,] } {3:[9,10]}
var POST_DATA = {
"ADD":{},
"DEL":{}
}; // 为td 绑定 单击事件
function BindTd() {
$('.item').click(function () { var room_id = $(this).attr('room_id');
var time_id = $(this).attr('time_id'); //取消预订
if($(this).hasClass('active')){
$(this).removeClass('active').empty();
if(POST_DATA.DEL[room_id]){
POST_DATA.DEL[room_id].push(time_id)
}else{
POST_DATA.DEL[room_id] = [time_id]
} }
//临时取消预订
else if($(this).hasClass('td_active')){
$(this).removeClass('td_active');
{#POST_DATA.ADD[room_id].pop()#} //这个是删除最后一个 在这不对！
// 删除指定的 元素
POST_DATA.ADD[room_id].splice(POST_DATA.ADD[room_id].indexOf(time_id),1) }else{ //添加预订
$(this).addClass('td_active');
if(POST_DATA.ADD[room_id]){
POST_DATA.ADD[room_id].push(time_id)
}else{
POST_DATA.ADD[room_id] = [time_id];
} } })
}
BindTd(); // 日期
if (location.search.slice(11)){
CHOOSE_DATE = location.search.slice(11)
}
else {
CHOOSE_DATE = new Date().yuan('yyyy-MM-dd');
} //发送 ajax
$('.keep').click(function () {
$.ajax({
url:'/book/',
type:'post',
headers:{"X-CSRFToken":$.cookie('csrftoken')},
data:{
choose_date:CHOOSE_DATE,
post_data:JSON.stringify(POST_DATA)
},
dataType:"json",
success:function (data) {
console.log(data);
if(data.state){
//预订成功
location.href = ''
}else{
alert('预订的房间已经被预订');
location.href=""
}
} })
}); // 日历插件
$('#datetimepicker11').datetimepicker({
minView: "month",
language: "zh-CN",
sideBySide: true,
format: 'yyyy-mm-dd',
startDate: new Date(),
bootcssVer: 3,
autoclose: true
}).on('changeDate', book_query); function book_query(e) {
CHOOSE_DATE=e.date.yuan("yyyy-MM-dd");
location.href="/index/?book_date="+CHOOSE_DATE;
} </script> </body>
</html>
index.html
https://github.com/alice-bj/mrbs_0
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