Online reservation and ordering system (available online)

1Introduction to the online ordering and reservation system

Database course design assignment using python

When going to a restaurant to dine, if you do not reserve a seat in advance, you may not be able to find the seat you want or the dish you want to eat. In order to solve this problem, customers can make reservations online first, and then go to the reserved restaurant to enjoy the dishes they have ordered when the reservation time comes.

2 Requirements analysis of online food ordering and reservation system

2.1 Overview of online food ordering reservation system requirements

(1) Customer login and modification of personal information
(2) Merchant login and modification of merchant information
(3) Merchant provides reservation information (available reservation time and table number)

(4) Customer reservation

(5) Generate reservation results and provide feedback to users and merchants

2.2.1 Top-level data flow diagram

 2.2.2 Online food ordering and reservation system layer 1 data flow diagram

2.2.3 Layer 2 data flow diagram of online food ordering and reservation system

2.3 Data flow

Data flow name	illustrate	Data flow source	Where the data flow goes	composition
User login information	Login information for users who use online ordering to make reservations	user input	User Management	account password
User modified information	Basic information in the system that the user wishes to modify	user input	User Management	Account number, password, address, contact information
User Info	Basic information of merchants on the online food ordering and reservation platform	User information table	User Management	Account number, password, address, contact information, reservation results
Merchant login information	Login information for merchants using online reservations	Merchant input	Merchant management	account password
Business information	Basic information about merchants on the online food ordering and reservation platform	Business information table	Merchant management, business information table	Store name, address, contact information, number of remaining tables
Merchants modify information	The basic information in the system that the merchant wishes to modify	Merchant input	Merchant management	Store name, address, contact information, number of remaining tables
Appointment information	Reservation information for users’ online meal reservations	user input	Appointment management	User account, user password, user name, meal time, number of guests,
Appointment results	Describe the results of reservation information	Appointment management	Users, merchants	Reservation number, reservation time, user account, merchant account, total price, number of diners, and reserved dish name

 2.4 Data storage

data storage	illustrate	incoming data stream	Outgoing data flow	composition
User information table	Store user-related information of the online food ordering reservation system	User modification information, user login information, reservation results	User Info	Account number, password, name, address, contact information, reservation results
Business information table	Store information related to merchants in the online food ordering reservation system	Merchant login information, reservation results	Business information	Account number, password, store name, address, contact information, number of remaining tables, reservation results
Reservation information form	Store information related to merchants in the online food ordering reservation system	Appointment information	Appointment information	User account, user password, user name, meal time, number of diners

 2.5 Data items

Data item name	Explanation of meaning
User contact information	The number of the user using the ordering system
user password	User-defined login password
user account	That is, the mailbox uniquely identifies each user.
username	Name of user who uses the online ordering system
Merchant store name	Ordering system merchant name
Merchant account	That is, the email address that uniquely identifies the merchant
Merchant password	Merchant customized login password
Store contact information	Uniquely identify each store

2.6 Processing process

Processing	illustrate	enter	output	deal with
User login	Login account	Name, account number, password, address, contact information	Basic user information table	Add a new user's information in the "User Information" data store
Modify user information	Modify a user's basic information	Name, account number, password, address, contact information	Basic user information table	Modify a user's information in the "User Information" data store
Update user information	Add appointment information	Appointment results	Basic user information table	Modify user reservation information in the "User Information" data store
User information query	Query user information	Query conditions	Appointment results	Query the user's information in the "User Information" data store
Merchant login	Merchant login	Store name, address, contact information	Basic business information table	Add a new business information to the "Business Information" data store
Business information modification	Modify a merchant’s basic information	Store name, address, contact information	Basic business information table	Modify a business's information in the Business Information data store
Business information query	Query business information	Query conditions	Basic reservation information table	Query business information in the Business Information data store
Update business information	Add appointment information	Appointment results	Basic business information table	Modify appointment information in the Places data store
Appointment order review	Review appointment information	Reservation information, business information	Basic reservation information table	Add a reservation information to the "Appointment Information" data store
Appointment information update	Feedback reservation results to users and merchants	Appointment information	Basic business information table and basic user information table	Add a reservation information in the "basic business information table and basic user information table" data storage

3 Conceptual structure of online food ordering and reservation system

3.1 Partial ER diagram

 

 

3.2 Global ER diagram 

 

Go to home page

The program remotely connected to the Huawei cloud server successfully (server IP and port number: ip:3306)

1. I am a user

Enter the user interface when the user selects 1

1.1 User login

When the user selects 1, the user login page is entered, and the user enters the correct account number and password to log in.

(1) The user entered the wrong account number

 

（2）用户输入错误的密码

（3）用户输入正确

登录后检查该用户的预约结果

若为“成功”，则用户可以选择：

1. 查看预约信息
2. 取消预约
3. 退出登录，返回主页

若为“失败”或为NULL，则跳出商家信息栏供用户预约，用户可以选择：

1. 预约
2. 退出登录，返回主页
   1. 1. 查看预约信息

      

   2. 取消预约

1. 预约 
2. 商家表中对应餐厅的剩余桌位加1，同时预约信息表中的预约信息删除，用户表中的预约结果由“成功”变为NULL（通过远程控制传输到服务器，相应的更改服务器中数据库的数据

3. （1）预约失败

   若出现以下情况，则预约失败，重新进入预约界面：

4. 用户输入的餐厅号有误
5. 在系统中无用户输入的餐厅（餐厅号）
6. 用户订餐的餐厅无空余桌位（该餐厅已订满）

 以上仅列举了部分测试结果，由于是课程作业，其中测试结果包含本人隐私信息如电话号码姓名，所有后续测试结果就不放出来了。

程序使用python完成，需要提取租用服务器并构建数据库。

代码部分如下：

使用python制作的数据库课程设计作业，使用python制作网上订餐系统（真实可用，可联网），内含全部代码已经测试文档。-Python文档类资源-CSDN文库

https://download.csdn.net/download/HUANGliang_/85247017https://download.csdn.net/download/HUANGliang_/8524701

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