创建一个简易的可以增删改查book的书籍管理system

urls.py

from django.contrib import admin

from django.urls import re_path,path

from book import views

urlpatterns = [

    path('admin/', admin.site.urls),

    re_path('books/add/$', views.add_book),

    re_path('books/$', views.books),

    re_path('layout/$', views.layout),

    re_path('motai/$', views.motai),

    re_path('books/(\d+)/change/$', views.change_book),

    re_path('books/(\d+)/delete/$', views.delete_book),

]

settings.py

ROOT_URLCONF = 'bookms_02.urls'

views.py

from django.shortcuts import render,HttpResponse,redirect

# Create your views here.

from .models import Publish,Author,Book

def add_book(request):

    if request.method=="POST":

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

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

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

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

        authors_id_list=request.POST.getlist("authors_id_list") # checkbox,select

        book_obj=Book.objects.create(title=title,price=price,publishDate=pub_date,publish_id=publish_id)

        print(authors_id_list) # ['', '']

        book_obj.authors.add(*authors_id_list)

        return redirect("/books/")

    publish_list=Publish.objects.all()

    author_list=Author.objects.all()

    return render(request,"addbook.html",{"author_list":author_list,"publish_list":publish_list})

def books(request):

    book_list=Book.objects.all()

    return render(request,"books.html",{"book_list":book_list})

def change_book(request,edit_book_id):

    edit_book_obj=Book.objects.filter(pk=edit_book_id).first()

    if  request.method=="POST":

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

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

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

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

        authors_id_list=request.POST.getlist("authors_id_list") # checkbox,select

        Book.objects.filter(pk=edit_book_id).update(title=title,price=price,

                                                    publishDate=pub_date,publish_id=publish_id)

        # edit_book_obj.authors.clear()

        # edit_book_obj.authors.add(*authors_id_list)

        edit_book_obj.authors.set(authors_id_list)

        return redirect("/books/")

    publish_list=Publish.objects.all()

    author_list=Author.objects.all()

    return render(request,"editbook.html",{"edit_book_obj":edit_book_obj,"publish_list":publish_list,"author_list":author_list})

def delete_book(request,delete_book_id):

    Book.objects.filter(pk=delete_book_id).delete()

    return redirect("/books/")

def layout(request):

    return render(request,'layout.html')

def motai(request):

    return render(request,'motai.html')

models.py

from django.db import models

# Create your models here.

class Author(models.Model):

    nid = models.AutoField(primary_key=True)

    name=models.CharField( max_length=)

    age=models.IntegerField()

class Publish(models.Model):

    nid = models.AutoField(primary_key=True)

    name=models.CharField( max_length=)

    city=models.CharField( max_length=)

    email=models.EmailField()

class Book(models.Model):

    nid = models.AutoField(primary_key=True)

    title = models.CharField( max_length=)

    publishDate=models.DateField()

    price=models.DecimalField(max_digits=,decimal_places=) # 999.99

    # 与Publish建立一对多的关系,外键字段建立在多的一方

    publish=models.ForeignKey(to="Publish",to_field="nid",on_delete=models.CASCADE)

    # 与Author表建立多对多的关系,ManyToManyField可以建在两个模型中的任意一个，自动创建第三张表

    authors=models.ManyToManyField(to='Author',)

motai.html

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

    <style>

        .hide{

            display: none;

        }

        .shadow{

            position: fixed;

            top: ;

            left: ;

            right: ;

            bottom: ;

            background-color:black;

            opacity: 0.4;

            z-index: ;

        }

        .modal{

            z-index: ;

            position: fixed;

            left: %;

            top: %;

            height: 300px;

            width: 400px;

            background-color: white;

            margin-left: -200px;

            margin-top: -150px;

        }

    </style>

</head>

<body>

    <a onclick="showModal();" href="">对话框添加</a>

    <div id="shadow" class="shadow hide"></div>

    <div id="modal" class="modal hide">

        <form action="" method="post">

            <p>

                <input type="text" name="title">

            </p>

            <input type="submit" value="提交">

        </form>

    </div>

<script>

    function showModal() {

        document.getElementById('shadow').classList.remove('hide');

        document.getElementById('modal').classList.remove('hide');

    }

</script>

</body>

</html>

layout.html

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

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

    <link rel="stylesheet" href="/static/font-awesome-4.7.0/css/font-awesome.css">

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

    {% block css %}{% endblock %}

</head>

<body>

<div class="pg-header">

    <div class="logo left">老女孩后台管理</div>

    <div class="avator right">

        <img src="/static/images/1.jpg" alt="">

        <div class="user-info">

            <a href="">个人资料</a>

            <a href="">注销</a>

        </div>

    </div>

    <div class="rmenus right">

        <a href=""><i class="fa fa-commenting-o" aria-hidden="true"></i> 消息</a>

        <a href=""><i class="fa fa-envelope-o" aria-hidden="true"></i> 邮件</a>

    </div>

</div>

<div class="pg-body">

    <div class="menus">

        <a href=""><i class="fa fa-bug" aria-hidden="true"></i> 班级管理</a>

        <a href=""><i class="fa fa-blind" aria-hidden="true"></i> 学生管理</a>

        <a href=""><i class="fa fa-flag" aria-hidden="true"></i> 教师管理</a>

    </div>

    <div class="content">

        <ol class="breadcrumb">

            <li><a href="#">首页</a></li>

            <li><a href="#">班级管理</a></li>

            <li class="active">添加班级</li>

        </ol>

        <div>

        <div class="row">

            <div class="col-md-offset-2 col-md-8">

                {% block content %}

                {% endblock %}

            </div>

        </div>

    </div>

        <nav aria-label="Page navigation">

              <ul class="pagination">

    <li>

      <a href="#" aria-label="Previous">

        <span aria-hidden="true">&laquo;</span>

      </a>

    </li>

    <li><a href="#"></a></li>

    <li><a href="#"></a></li>

    <li><a href="#"></a></li>

    <li><a href="#"></a></li>

    <li><a href="#"></a></li>

    <li>

      <a href="#" aria-label="Next">

        <span aria-hidden="true">&raquo;</span>

      </a>

    </li>

  </ul>

</nav>

    </div>

</div>

{% block js %}

{% endblock %}

</body>

</html>

addbook.html

{% extends 'layout.html' %}

{% block content %}

   <h3>增加书籍</h3>

    <form action="" method="post">

                 {% csrf_token %}

                 <div class="form-group">

                     <label for="">名称</label>

                     <input type="text" name="title" class="form-control" value="">

                 </div>

                <div class="form-group">

                     <label for="">价格</label>

                     <input type="text" name="price" class="form-control">

                 </div>

                <div class="form-group">

                     <label for="">出版日期</label>

                     <input type="date" name="pub_date" class="form-control">

                 </div>

                <div class="form-group">

                     <label for="">出版社</label>

                    <select name="publish_id" id="" class="form-control">

                           {% for publish in publish_list %}

                           <option value="{{ publish.pk }}">{{ publish.name }}</option>

                           {% endfor %}

                    </select>

                 </div>

                <div class="form-group">

                     <label for="">作者</label>

                     <select type="text" name="authors_id_list" multiple class="form-control">

                         {% for author in author_list %}

                           <option value="{{ author.pk }}">{{ author.name }}</option>

                           {% endfor %}

                     </select>

                 </div>

                <input type="submit" class="btn btn-default">

            </form>

{% endblock %}

books.html

{% extends 'layout.html' %}

{% block css %}

{% endblock %}

{% block content %}

       <a href="/books/add/" class="fa fa-handshake-o">添加书籍</a>

        <table class="table table-bordered table-hover table-striped">

                 <thead>

                    <tr>

                         <th>编号</th>

                         <th>书籍名称</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 book in book_list %}

                      <tr>

                           <td>{{ forloop.counter }}</td>

                           <td>{{ book.title }}</td>

                           <td>{{ book.price }}</td>

                           <td>{{ book.publishDate|date:"Y-m-d" }}</td>

                           <td>

                               {{ book.publish.name }}

                           </td>

                           <td>

                               {% for author in book.authors.all %}

                                  {% if forloop.last %}

                                   <span>{{ author.name }}</span>

                                  {% else %}

                                   <span>{{ author.name }}</span>,

                                  {% endif %}

                               {% endfor %}

                           </td>

                           <td>

                               <a href="/books/{{ book.pk }}/change/" class="glyphicon glyphicon-pencil">编辑</a>

                               <a href="/books/{{ book.pk }}/delete/" class="glyphicon glyphicon-trash">删除</a>

                           </td>

                      </tr>

                      {% endfor %}

                 </tbody>

             </table>

{% endblock %}

{% block js %}

{% endblock %}

<!--<!DOCTYPE html>-->

<!--<html lang="en">-->

<!--<head>-->

    <!--<meta charset="UTF-8">-->

    <!--<title>Title</title>-->

    <!--<link rel="stylesheet" href="/static/bs/css/bootstrap.css">-->

    <!--<link rel="stylesheet" href="/static/font-awesome-4.7.0/css/font-awesome.css">-->

<!--</head>-->

<!--<body>-->

<!--<h3>查看书籍</h3>-->

<!--<div class="container">-->

    <!--<div class="row">-->

        <!--<div class="col-md-8 col-md-offset-2">-->

            <!--<a href="/books/add/" class="fa fa-handshake-o"></a>-->

             <!--<table class="table table-bordered table-hover table-striped">-->

                 <!--<thead>-->

                    <!--<tr>-->

                         <!--<th>编号</th>-->

                         <!--<th>书籍名称</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 book in book_list %}-->

                      <!--<tr>-->

                           <!--<td>{{ forloop.counter }}</td>-->

                           <!--<td>{{ book.title }}</td>-->

                           <!--<td>{{ book.price }}</td>-->

                           <!--<td>{{ book.publishDate|date:"Y-m-d" }}</td>-->

                           <!--<td>-->

                               <!--{{ book.publish.name }}-->

                           <!--</td>-->

                           <!--<td>-->

                               <!--{% for author in book.authors.all %}-->

                                  <!--{% if forloop.last %}-->

                                   <!--<span>{{ author.name }}</span>-->

                                  <!--{% else %}-->

                                   <!--<span>{{ author.name }}</span>,-->

                                  <!--{% endif %}-->

                               <!--{% endfor %}-->

                           <!--</td>-->

                           <!--<td>-->

                               <!--<a href="/books/{{ book.pk }}/change/" class="glyphicon glyphicon-pencil"></a>-->

                               <!--<a href="/books/{{ book.pk }}/delete/" class="glyphicon glyphicon-trash"></a>-->

                           <!--</td>-->

                      <!--</tr>-->

                      <!--{% endfor %}-->

                 <!--</tbody>-->

             <!--</table>-->

        <!--</div>-->

    <!--</div>-->

<!--</div>-->

<!--&lt;!&ndash; Button trigger modal &ndash;&gt;-->

<!--<button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">-->

  <!--Launch demo modal-->

<!--</button>-->

<!--<div class="modal fade" tabindex="-1" role="dialog">-->

  <!--<div class="modal-dialog" role="document">-->

    <!--<div class="modal-content">-->

      <!--<div class="modal-header">-->

        <!--<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>-->

        <!--<h4 class="modal-title">Modal title</h4>-->

      <!--</div>-->

      <!--<div class="modal-body">-->

        <!--<p>One fine body&hellip;</p>-->

      <!--</div>-->

      <!--<div class="modal-footer">-->

        <!--<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>-->

        <!--<button type="button" class="btn btn-primary">Save changes</button>-->

      <!--</div>-->

    <!--</div>&lt;!&ndash; /.modal-content &ndash;&gt;-->

  <!--</div>&lt;!&ndash; /.modal-dialog &ndash;&gt;-->

<!--</div>&lt;!&ndash; /.modal &ndash;&gt;-->

<!--</body>-->

<!--</html>-->

editbook.html

{% extends 'layout.html' %}

{% block content %}

    <h3>编辑书籍</h3>

    <form action="" method="post">

                    {% csrf_token %}

                    <div class="form-group">

                        <label for="">名称</label>

                        <input type="text" name="title" class="form-control" value="{{ edit_book_obj.title }}">

                    </div>

                    <div class="form-group">

                        <label for="">价格</label>

                        <input type="text" name="price" class="form-control" value="{{ edit_book_obj.price }}">

                    </div>

                    <div class="form-group">

                        <label for="">出版日期</label>

                        <input type="date" name="pub_date" class="form-control"

                               value="{{ edit_book_obj.publishDate|date:'Y-m-d' }}">

                    </div>

                    <div class="form-group">

                        <label for="">出版社</label>

                        <select name="publish_id" id="" class="form-control">

                            {% for publish in publish_list %}

                                {% if edit_book_obj.publish == publish %}

                                    <option selected value="{{ publish.pk }}">{{ publish.name }}</option>

                                {% else %}

                                    <option value="{{ publish.pk }}">{{ publish.name }}</option>

                                {% endif %}

                            {% endfor %}

                        </select>

                    </div>

                    <div class="form-group">

                        <label for="">作者</label>

                        <select type="text" name="authors_id_list" multiple class="form-control">

                            {% for author in author_list %}

                            {% if author in edit_book_obj.authors.all %}

                                <option selected value="{{ author.pk }}">{{ author.name }}</option>

                            {% else %}

                                 <option value="{{ author.pk }}">{{ author.name }}</option>

                            {% endif %}

                            {% endfor %}

                        </select>

                    </div>

                    <input type="submit" class="btn btn-default">

                </form>

{% endblock %}

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