简单图书管理系统
一、首页
1、home html 页面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.4/jquery.js"></script>
<link href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<body>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">图书管理系统</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#">作者 <span class="sr-only">(current)</span></a></li>
<li><a href="#">图书</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
aria-expanded="false">更多下拉框 <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">Separated link</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-left">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">jerry</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
aria-expanded="false">更多操作 <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li role="separator" class="divider"></li>
<li><a href="#">Separated link</a></li>
</ul>
</li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<div class="container-fluid">
<div class="row">
<div class="col-md-3">
<div class="list-group">
<a href="/home/" class="list-group-item active">
首页
</a>
{# <a href="{% url 'book_list' %}" class="list-group-item">图书列表</a>#}
<a href="/book_list/" class="list-group-item">图书列表</a>
<a href="/publish_list/" class="list-group-item">出版社列表</a>
<a href="/authors_list/" class="list-group-item">作者列表</a>
<a href="#" class="list-group-item">更多</a>
</div>
</div>
<div class="col-md-9">
<div class="panel panel-primary">
<div class="panel-heading">
<h3 class="panel-title">图书管理系统</h3>
</div>
{% block content %}
<div class="panel-body">
<div class="jumbotron">
<h1>欢迎来到jingzhi的读书平台</h1>
<p>library home</p>
<p><a class="btn btn-primary btn-lg" href="#" role="button">学习更多</a></p>
</div>
</div>
<div class="row">
<div class="col-sm-6 col-md-4">
<div class="thumbnail">
<img src="https://th.bing.com/th/id/R.ed543702d27a0d67c3b35a8e0335c036?rik=dYjjCZeYCJhgMw&riu=http%3a%2f%2fi.52desktop.cn%3a81%2fupimg%2fallimg%2f20140317%2f201431723185278778024.jpg&ehk=YeKRjoz4pnD1%2fbqTKDHgqIzTM5bG%2fxpIQf6Pl0FcipY%3d&risl=&pid=ImgRaw&r=0"
alt="...">
<div class="caption">
<h3>阅读</h3>
<p>...</p>
<p><a href="#" class="btn btn-primary" role="button">Button</a> <a href="#"
class="btn btn-default"
role="button">Button</a>
</p>
</div>
</div>
</div>
<div class="col-sm-6 col-md-4">
<div class="thumbnail">
<img src="https://pic.52112.com/180528/JPG-180528_366/6oelrV9vrx_small.jpg"
alt="...">
<div class="caption">
<h3>明史</h3>
<p>...</p>
<p><a href="#" class="btn btn-primary" role="button">Button</a> <a href="#"
class="btn btn-default"
role="button">Button</a>
</p>
</div>
</div>
</div>
<div class="col-sm-6 col-md-4">
<div class="thumbnail">
<img src="https://th.bing.com/th/id/R.da2e941fffa6645dde283f3ea83e0d88?rik=wpXjy4qakLJNKw&riu=http%3a%2f%2fi.52desktop.cn%3a81%2fupimg%2fallimg%2f20140317%2f2014317231856171778091.jpg&ehk=a8bKUOh59rIJf%2fxwJoHiqgse80giA9kP5yJ4Rx0Nll8%3d&risl=&pid=ImgRaw&r=0"
alt="...">
<div class="caption">
<h3>明事</h3>
<p>...</p>
<p><a href="#" class="btn btn-primary" role="button">Button</a> <a href="#"
class="btn btn-default"
role="button">Button</a>
</p>
</div>
</div>
</div>
</div>
{% endblock %}
</div>
</div>
</div>
</div>
</body>
</html>
2、urls
"""library URL Configuration
The `urlpatterns` list routes URLs to views. For more information please see:
https://docs.djangoproject.com/en/2.2/topics/http/urls/
Examples:
Function views
1. Add an import: from my_app import views
2. Add a URL to urlpatterns: path('', views.home, name='home')
Class-based views
1. Add an import: from other_app.views import Home
2. Add a URL to urlpatterns: path('', Home.as_view(), name='home')
Including another URLconf
1. Import the include() function: from django.urls import include, path
2. Add a URL to urlpatterns: path('blog/', include('blog.urls'))
"""
from django.contrib import admin
from django.urls import path
from app01 import views
urlpatterns = [
path('admin/', admin.site.urls),
path('home/', views.home),
path('book_list/', views.book_list),
path('book_add/', views.book_add),
path('book_edit/', views.book_edit),
path('book_del/', views.book_del),
path('publish_list/', views.publish_list),
path('publish_edit/', views.publish_edit),
path('publish_add/', views.publish_add),
path('publish_del/', views.publish_del),
path('authors_list/', views.authors_list),
path('authors_add/', views.authors_add),
path('authors_edit/', views.authors_edit),
path('authors_del/', views.authors_del),
]
3、views
from django.shortcuts import render, redirect, HttpResponse
from app01 import models
# Create your views here.
def home(request):
return render(request, 'home.html')
# 图书列表
def book_list(request):
# 查询图书列表数据
book_queryset = models.Book.objects.all()
print(book_queryset)
# <QuerySet [<Book: Book object (1)>, <Book: Book object (4)>, <Book: Book object (6)>, <Book: Book object (7)>, <Book: Book object (8)>, <Book: Book object (9)>, <Book: Book object (10)>, <Book: Book object (11)>]>
# Book object (1) 为id号，数据删除后，id不翟按照顺序，顺序在增大，删掉的id不再存在
return render(request, 'book_list.html', locals())
# 添加图书
def book_add(request):
# 登录页面，GET请求方式，需要展示数据库可选的出版社和作者
# 出版社下拉框
publish_queryset = models.Publish.objects.all()
# 作者下拉框
author_queryset = models.Author.objects.all()
# 接收form表单提交过来的数据
if request.method == 'POST':
title = request.POST.get('title')
price = request.POST.get('price')
date = request.POST.get('date')
publish = request.POST.get('publish') # 前端传过来的是id 数字
authors = request.POST.getlist('authors') # 有多个作者的情况['zjz', 'ldj']
# 把数据写到数据库中（前四个字段在Book表中）
book_obj = models.Book.objects.create(title=title, price=price, publish_date=date, publish_id=publish)
print(book_obj) # Book object (6)
# 添加作者，第三张表插入数据
book_obj.authors.add(*authors) # 多对多添加数据
# 添加完成，页面跳转
return render(request, 'book_add.html')
return render(request, 'book_add.html', locals())
# 修改图书信息
def book_edit(request):
edit_id = request.GET.get('id')
edit_obj = models.Book.objects.filter(pk=edit_id).first()
# 出版社列表
publish_queryset = models.Publish.objects.all()
# 作者列表
author_queryset = models.Author.objects.all()
# 如果是post请求，就走下面的逻辑
if request.method == 'POST':
# 接收form表单提交过来的数据
hidden_id = request.POST.get('hidden_id')
title = request.POST.get('title')
price = request.POST.get('price')
date = request.POST.get('date')
publish = request.POST.get('publish') # 1 2 3
authors = request.POST.getlist('authors') # ['1', '2', '3']
edit_obj = models.Book.objects.filter(pk=hidden_id).first()
models.Book.objects.filter(pk=hidden_id).update(title=title, price=price, publish_date=date, publish_id=publish)
# 操作第三张表
edit_obj.authors.set(authors)
return redirect('/book_list/')
# print(edit_obj.authors.all())
authors_list = []
for i in edit_obj.authors.all():
authors_list.append(i.pk)
print(authors_list) # [1, 3]
return render(request, 'book_edit.html', locals())
# 删除图书
def book_del(request):
# 获取id，根据id去数据库删除相关的信息
del_id = request.GET.get('id')
# print(del_id)
models.Book.objects.filter(pk=del_id).delete()
return redirect('/book_list/')
# 出版社列表
def publish_list(request):
publish_queryset = models.Publish.objects.all()
return render(request, 'publish_list.html', locals())
# 添加出版社
def publish_add(request):
if request.method == 'POST':
# 接收form表单提交过来的数据
name = request.POST.get('name')
addr = request.POST.get('addr')
models.Publish.objects.create(name=name, addr=addr)
return redirect('/publish_list/')
return render(request, 'publish_add.html')
# 修改出版社
def publish_edit(request):
publish_edit_id = request.GET.get('id') # 先获取id
publish_obj = models.Publish.objects.filter(pk=publish_edit_id).first() # 获取一个publish_obj对象
if request.method == 'POST':
new_name = request.POST.get('name') # 获取前端传来的出版社名，name对应的只
new_addr = request.POST.get('addr')
# 更新出版社名称和地址
publish_obj.name = new_name
publish_obj.addr = new_addr
publish_obj.save()
return redirect('/publish_list/')
return render(request, 'publish_edit.html', locals())
# 删除出版社
def publish_del(request):
# 获取id，根据id去数据库删除相关的信息
del_id = request.GET.get('id')
# print(del_id)
models.Publish.objects.filter(pk=del_id).delete()
return redirect('/publish_list/')
# 作者列表
def authors_list(request):
authors_queryset = models.Author.objects.all()
print(authors_queryset)
# <QuerySet [<Author: Author object (1)>, <Author: Author object (2)>, <Author: Author object (3)>, <Author: Author object (4)>]>
return render(request, 'authors_list.html', locals())
# 添加作者
def authors_add(request):
if request.method == 'POST':
# 接收form表单提交过来的数据
name = request.POST.get('name')
age = request.POST.get('age')
phone = request.POST.get('phone')
addr = request.POST.get('addr')
# 作者详情外键字段逻辑,先添加作者详情表字段
authors_detail_obj = models.Authordetail.objects.create(phone=phone, addr=addr)
models.Author.objects.create(name=name, age=age, author_id=authors_detail_obj.pk)
return redirect('/authors_list/')
return render(request, 'authors_add.html')
# 修改作者
def authors_edit(request):
author_edit_id = request.GET.get('id') # 先获取id
author_obj = models.Author.objects.filter(pk=author_edit_id).first() # 获取一个publish_obj对象
author_detail_obj = models.Author.objects.filter(pk=author_edit_id).first() # 获取一个publish_obj对象
if request.method == 'POST':
new_name = request.POST.get('name')
new_age = request.POST.get('age')
new_phone = request.POST.get('phone')
new_addr = request.POST.get('addr')
# 写入数据库
models.Author.objects.filter(pk=author_edit_id).update(name=new_name, age=new_age)
models.Authordetail.objects.filter(author__pk=author_edit_id).update(phone=new_phone, addr=new_addr)
# save方法
# author_obj.name = new_name
# author_obj.age = new_age
# author_obj.save()
# author_obj.author.phone = new_phone
# author_obj.author.addr = new_addr
# author_obj.author.save()
return redirect('/authors_list/')
return render(request, 'authors_edit.html', locals())
# 删除作者
def authors_del(request):
del_id = request.GET.get('id')
models.Author.objects.filter(pk=del_id).delete()
return redirect('/authors_list/')
补充：写入数据库的两种方法
方法一： 对象.save()
方法二： models..update()
在一对一关系表中：可以使用双下划线语法来指定关联字段
models.Author.objects.filter(pk=author_edit_id).update(name=new_name, age=new_age) models.Authordetail.objects.filter(author__pk=author_edit_id).update(phone=new_phone, addr=new_addr)
4、models
from django.db import models
# 图书表、出版社表、作者表、作者详情表
class Book(models.Model):
title = models.CharField(max_length=64, )
price = models.DecimalField(max_digits=8, decimal_places=2)
publish_date = models.DateField(auto_now_add=True)
# 外键，多对多
authors = models.ManyToManyField(to='Author')
publish = models.ForeignKey(to='Publish', on_delete=models.CASCADE)
class Publish(models.Model):
name = models.CharField(max_length=64)
addr = models.CharField(max_length=64)
def __str__(self):
return self.name
class Author(models.Model):
name = models.CharField(max_length=64)
age = models.IntegerField()
# 外键
author = models.OneToOneField(to='Authordetail', on_delete=models.CASCADE)
class Authordetail(models.Model):
phone = models.BigIntegerField()
addr = models.CharField(max_length=64)
5、效果
二、图书功能页
1、展示图书列表
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">图书列表展示</h1>
<a href="/book_add/" class="btn btn-info">添加图书</a>
<table class="table table-striped table-hover">
<thead>
<tr>
<th>标题</th>
<th>价格</th>
<th>出版日期</th>
<th>出版社</th>
<th>作者</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for foo in book_queryset %}
<tr>
<td>{{ foo.title }}</td>
<td>{{ foo.price }}</td>
<td>{{ foo.publish_date|date:'Y-m-d' }}</td>
<td>{{ foo.publish.name }}</td> {#书查出版社，正向查询，外键字段跳表#}
<td>
{% for author in foo.authors.all %}
{% if forloop.last %}
{{ author.name }}
{% else %}
{{ author.name }} |
{% endif %}
{% endfor %}
</td>
<td>
{# <a href="/book/edit/{{ foo.pk }}" class="btn btn-success">修改</a>#}
<a href="/book_edit/?id={{ foo.pk }}" class="btn btn-success">修改</a>
<a href="/book_del/?id={{ foo.pk }}" class="btn btn-danger">删除</a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
{% endblock %}
2、添加图书
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">新增图书</h1>
<div class="container">
<div class="row">
<form action="" method="post">
{% csrf_token %}
<input type="hidden" value="{{ edit_obj.pk }}" name="hidden_id">
<div class="form-group">
图书名称：<input type="text" class="form-control" name="title" value="{{ edit_obj.title }}">
</div>
<div class="form-group">
图书价格：<input type="number" class="form-control" name="price" value="{{ edit_obj.price }}">
</div>
<div class="form-group">
出版日期：<input type="date" class="form-control" name="date"
value="{{ edit_obj.publish_date|date:'Y-m-d' }}">
</div>
<div class="form-group">
出版社：
<select name="publish" id="" class="form-control">
{% for foo in publish_queryset %}
{% if foo.pk == edit_obj.publish_id %}
<option value="{{ foo.pk }}" selected>{{ foo.name }}</option>
{% else %}
<option value="{{ foo.pk }}">{{ foo.name }}</option>
{% endif %}
{% endfor %}
</select>
</div>
<div class="form-group">
作者：
<select name="authors" class="form-control" multiple id="">
{# multiple 实现下拉框多选效果#}
{% for foo in author_queryset %}
{% if foo.pk in authors_list %}
<option value="{{ foo.pk }}" selected>{{ foo.name }}</option>
{% else %}
<option value="{{ foo.pk }}">{{ foo.name }}</option>
{% endif %}
{% endfor %}
</select>
</div>
<div class="form-group">
<input type="submit" class="btn btn-success btn-block">
</div>
</form>
</div>
</div>
{% endblock %}
3、修改图书
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">修改图书</h1>
<div class="container">
<div class="row">
<form action="" method="post">
{% csrf_token %}
<input type="hidden" value="{{ edit_obj.pk }}" name="hidden_id">
<div class="form-group">
图书名称：<input type="text" class="form-control" name="title" value="{{ edit_obj.title }}">
</div>
<div class="form-group">
图书价格：<input type="number" class="form-control" name="price" value="{{ edit_obj.price }}">
</div>
<div class="form-group">
出版日期：<input type="date" class="form-control" name="date" value="{{ edit_obj.publish_date|date:'Y-m-d' }}">
</div>
<div class="form-group">
出版社：
<select name="publish" id="" class="form-control">
{% for foo in publish_queryset %}
{# foo是所有的出版社循环的一条结果，判断当前循环的id值是不是和传进的参数id一样 #}
{% if foo.pk == edit_obj.publish_id %}
<option value="{{ foo.pk }}" selected>{{ foo.name }}</option>
{% else %}
<option value="{{ foo.pk }}">{{ foo.name }}</option>
{% endif %}
{% endfor %}
</select>
</div>
<div class="form-group">
作者：
<select name="authors" class="form-control" multiple id=""> {# multiple的作用，作者多选 #}
{% for foo in author_queryset %}
{% if foo.pk in authors_list %} {# authors_list 是 edit_obj对象跳表拿到的循环作者结果 #}
<option value="{{ foo.pk }}" selected>{{ foo.name }}</option>
{% else %}
<option value="{{ foo.pk }}" >{{ foo.name }}</option>
{% endif %}
{% endfor %}
</select>
</div>
<div class="form-group">
<input type="submit" class="btn btn-success btn-block">
</div>
</form>
</div>
</div>
{% endblock %}
4、删除图书
见views
5、效果
三、出版社功能页
1、展示出版社列表
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">出版社列表展示</h1>
<a href="/publish_add/" class="btn btn-info">添加出版社</a>
<table class="table table-striped table-hover">
<thead>
<tr>
<th>出版社</th>
<th>地址</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for pub in publish_queryset %}
<tr>
<td>{{ pub.name }}</td>
<td>{{ pub.addr }}</td>
<td>
<a href="/publish_edit/?id={{ pub.pk }}" class="btn btn-success">修改</a>
<a href="/publish_del/?id={{ pub.pk }}" class="btn btn-danger">删除</a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
{% endblock %}
2、添加出版社
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">新增出版社</h1>
<div class="container">
<div class="row">
<form action="" method="post">
{% csrf_token %}
<div class="form-group">
出版社名称：<input type="text" class="form-control" name="name">
</div>
<div class="form-group">
出版社地址：<input type="text" class="form-control" name="addr">
</div>
<div class="form-group">
<input type="submit" class="btn btn-success btn-block">
</div>
</form>
</div>
</div>
{% endblock %}
3、修改出版社
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">修改出版社</h1>
<div class="container">
<div class="row">
<form action="" method="post">
<div class="form-group">
<input type="hidden" value="{{ edit_obj.pk }}" name="hidden_id">
<div class="form-group">
出版社：<input type="text" class="form-control" name="name" value="{{ publish_obj.name }}">
</div>
</div>
<div class="form-group">
出版社地址：<input type="text" class="form-control" name="addr" value="{{ publish_obj.addr }}">
</div>
<div class="form-group">
<input type="submit" class="btn btn-success btn-block">
</div>
</form>
</div>
</div>
{% endblock %}
4、删除出版社
见view
四、作者功能页
1、展示作者列表
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">作者列表展示</h1>
<a href="/authors_add/" class="btn btn-info">添加作者</a>
<table class="table table-striped table-hover">
<thead>
<tr>
<th>作者名</th>
<th>年龄</th>
<th>phone</th>
<th>addr</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for aut in authors_queryset %}
<tr>
<td>{{ aut.name }}</td>
<td>{{ aut.age }}</td>
<td>{{ aut.author.phone }}</td>
<td>{{ aut.author.addr }}</td>
<td>
<a href="/authors_edit/?id={{ aut.pk }}" class="btn btn-success">修改</a>
<a href="/authors_del/?id={{ aut.pk }}" class="btn btn-danger">删除</a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
{% endblock %}
注意：这里可以使用对象点外键的方法进行跳表取值
2、添加作者
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">新增作者</h1>
<div class="container">
<div class="row">
<form action="" method="post">
{% csrf_token %}
<div class="form-group">
作者名：<input type="text" class="form-control" name="name">
</div>
<div class="form-group">
作者年龄：<input type="text" class="form-control" name="age">
</div>
<div class="form-group">
联系方式：<input type="text" class="form-control" name="phone">
</div>
<div class="form-group">
地址：<input type="text" class="form-control" name="addr">
</div>
<div class="form-group">
<input type="submit" class="btn btn-success btn-block">
</div>
</form>
</div>
</div>
{% endblock %}
3、修改作者
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">修改作者</h1>
<div class="container">
<div class="row">
<form action="" method="post">
<div class="form-group">
<input type="hidden" value="{{ edit_obj.pk }}" name="hidden_id">
<div class="form-group">
作者名：<input type="text" class="form-control" name="name" value="{{ author_obj.name }}">
</div>
</div>
<div class="form-group">
年龄：<input type="text" class="form-control" name="age" value="{{ author_obj.age }}">
</div>
<div class="form-group">
<input type="submit" class="btn btn-success btn-block">
</div>
</form>
</div>
</div>
{% endblock %}
4、删除作者
见view
