简易的图书管理系统代码（实现对数据的增删改查）
简易的图书管理系统
urls.py
from django.conf.urls import url
from django.contrib import admin
from app01 import views
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^$', views.home, name='home1'),
url(r'^book_list', views.book_list, name='book_show'),
url(r'^add_book', views.add_book, name='add'),
url(r'^edit_book/(?P\d+)', views.edit_book, name='edit'),
url(r'^delete_book/(\d+)', views.delete_book, name='delete')
]
models.py
from django.db import models
# Create your models here.
# 图书表
class Book(models.Model):
# 书名
title = models.CharField(max_length=64)
# 出版日期
publish_date = models.DateField(auto_now_add=True)
# 价格
price = models.CharField(max_length=254)
# 图书与出版社 一对多
publish = models.ForeignKey(to='Publish')
# 图书与作者 多对多
authors = models.ManyToManyField(to='Author')
# 出版社表
class Publish(models.Model):
name = models.CharField(max_length=64)
addr = models.CharField(max_length=254)
# 作者表
class Author(models.Model):
name = models.CharField(max_length=64)
age = models.IntegerField()
# 作者表与作者细节表 一对一
author_detail = models.OneToOneField(to='AuthorDetail')
# 作者细节表
class AuthorDetail(models.Model):
gender_choices = [
(1, '男'),
(2, '女'),
(3, '其他'),
]
gender = models.IntegerField(choices=gender_choices)
phone = models.CharField(max_length=11)
views.py
from django.shortcuts import render, redirect, reverse
from app01 import models
# Create your views here.
def home(request):
return render(request, 'home.html')
def book_list(request):
book_queryset = models.Book.objects.all()
return render(request, 'book_show.html', locals())
def add_book(request):
if request.method == 'POST':
title = request.POST.get('title')
publish_date = request.POST.get('publish_date')
price = request.POST.get('price')
publish_id = request.POST.get('publish')
authors_lists = request.POST.getlist('authors')
# 操作数据库
# 书籍表
book_obj = models.Book.objects.create(title=title, publish_date=publish_date, price=price, publish_id=publish_id)
# 书籍与作者关系表
book_obj.authors.add(*authors_lists)
# 后端反向解析
_url = reverse('book_show')
# 后端重定向
return redirect(_url)
publish_queryset = models.Publish.objects.all()
author_queryset = models.Author.objects.all()
return render(request, 'add_book.html', locals())
def edit_book(request, edit_id):
edit_obj = models.Book.objects.filter(pk=edit_id).first()
if request.method == 'POST':
title = request.POST.get('title')
publish_date = request.POST.get('publish_date')
price = request.POST.get('price')
publish_id = request.POST.get('publish')
authors_lists = request.POST.getlist('authors')
# 操作数据库
# 书籍表 models.Book.objects.filter(pk=edit_id).update(title=title, publish_date=publish_date, price=price, publish_id=publish_id)
# 书籍与作者关系表
edit_obj.authors.set(authors_lists)
# 后端反向解析
_url = reverse('book_show')
# 后端重定向
return redirect(_url)
publish_queryset = models.Publish.objects.all()
author_queryset = models.Author.objects.all()
return render(request, 'edit_book.html', locals())
def delete_book(request, delete_id):
models.Book.objects.filter(pk=delete_id).delete()
_url = reverse('book_show')
return redirect(_url)
home.html文件
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.js"></script>
{# <link href="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">#}
{# <script src="https://cdn.bootcss.com/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script>#}
{% load static %}
<link rel="stylesheet" href="{% static 'bootstrap-3.3.7-dist/css/bootstrap.min.css' %}">
<script src="{% static 'bootstrap-3.3.7-dist/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="#">BMS</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="#">图书 <span class="sr-only">(current)</span></a></li>
<li><a href="#">出版社</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>
<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="#">yyx</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="col-md-4">
<div class="list-group">
<a href="{% url 'home1' %}" class="list-group-item active">
首页
</a>
<a href="{% url 'book_show' %}" class="list-group-item">图书列表</a>
<a href="#" class="list-group-item">作者列表</a>
<a href="#" class="list-group-item">出版社列表</a>
<a href="#" class="list-group-item">更多操作</a>
</div>
</div>
<div class="col-md-8">
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title text-center">BMS系统</h3>
</div>
<div class="panel-body">
{% block content %}
<div class="jumbotron">
<h1>欢迎来到BMS系统</h1>
<p>在这里你可以饱阅天下群书！</p>
<p><a class="btn btn-danger btn-lg" href="#" role="button">比心</a></p>
</div>
{% endblock %}
</div>
</div>
</div>
</div>
</body>
</html>
book_show.py文件
{% extends 'home.html' %}
{% block content %}
<div>
<a href="{% url 'add' %}" class="btn btn-warning">新增</a>
</div>
<br>
<table class="table table-bordered table-hover table-striped">
<thead>
<tr>
<th>序号</th>
<th>书名</th>
<th>价格</th>
<th>出版社</th>
<th>出版时间</th>
<th>作者</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for book_obj in book_queryset %}
<tr>
<td>{{ forloop.counter }}</td>
<td>{{ book_obj.title }}</td>
<td>{{ book_obj.price }}</td>
<td>{{ book_obj.publish.name }}</td>
<td>{{ book_obj.publish_date|date:'Y-m-d' }}</td>
<td>
{% for author_obj in book_obj.authors.all %}
{% if forloop.last %}
{{ author_obj.name }}
{% else %}
{{ author_obj.name }},
{% endif %}
{% endfor %}
</td>
<td>
<a href="{% url 'edit' book_obj.pk %}" class="btn btn-success btn-xs">编辑</a>
<a href="{% url 'delete' book_obj.pk %}" class="btn btn-success btn-xs">删除</a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
<nav aria-label="Page navigation" class="text-center">
<ul class="pagination">
<li>
<a href="#" aria-label="Previous">
<span aria-hidden="true">«</span>
</a>
</li>
<li><a href="#">1</a></li>
<li><a href="#">2</a></li>
<li><a href="#">3</a></li>
<li><a href="#">4</a></li>
<li><a href="#">5</a></li>
<li>
<a href="#" aria-label="Next">
<span aria-hidden="true">»</span>
</a>
</li>
</ul>
</nav>
{% endblock %}
add_book.py文件
{% extends 'home.html' %}
{% block content %}
<h2 class="text-center">新增图书</h2>
<form action="" method="post">
<p>
书名<input type="text" name="title" class="form-control">
</p>
<p>
价格<input type="text" name="price" class="form-control">
</p>
<p>
出版时间<input type="date" name="publish_date" class="form-control">
</p>
<p>
出版社<select name="publish" id="" class="form-control">
{% for publish_obj in publish_queryset %}
<option value="{{ publish_obj.pk }}">{{ publish_obj.name }}</option>
{% endfor %}
</select>
</p>
<p>
作者<select name="authors" id="" class="form-control" multiple>
{% for author_obj in author_queryset %}
<option value="{{ author_obj.pk }}">{{ author_obj.name }}</option>
{% endfor %}
</select>
</p>
<input type="submit" class="btn btn-success pull-right">
</form>
{% endblock %}
edit_book.py文件
{% extends 'home.html' %}
{% block content %}
<h2 class="text-center">编辑图书</h2>
<form action="" method="post">
<p>
书名<input type="text" name="title" class="form-control" value="{{ edit_obj.title }}">
</p>
<p>
价格<input type="text" name="price" class="form-control" value="{{ edit_obj.price }}">
</p>
<p>
出版时间<input type="date" name="publish_date" class="form-control" value="{{ edit_obj.publish_date|date:'Y-m-d' }}">
</p>
<p>
出版社<select name="publish" id="" class="form-control">
{% for publish_obj in publish_queryset %}
{% if edit_obj.publish == publish_obj %}
<option value="{{ publish_obj.pk }}" selected>{{ publish_obj.name }}</option>
{% else %}
<option value="{{ publish_obj.pk }}">{{ publish_obj.name }}</option>
{% endif %}
{% endfor %}
</select>
</p>
<p>
作者<select name="authors" id="" class="form-control" multiple>
{% for author_obj in author_queryset %}
{% if author_obj in edit_obj.authors.all %}
<option value="{{ author_obj.pk }}" selected>{{ author_obj.name }}</option>
{% else %}
<option value="{{ author_obj.pk }}">{{ author_obj.name }}</option>
{% endif %}
{% endfor %}
</select>
</p>
<input type="submit" class="btn btn-warning pull-right">
</form>
{% endblock %}
