一、表的设计
from django.db import models
# Create your models here.
class Book(models.Model):
title = models.CharField(max_length=32, verbose_name='书名')
price = models.DecimalField(max_digits=8, decimal_places=2, verbose_name='价格')
publish_date = models.DateField(auto_now_add=True, verbose_name='出版时间')
publish = models.ForeignKey(to='Publish')
author = models.ManyToManyField(to='Author')
class Publish(models.Model):
name = models.CharField(max_length=32, verbose_name='出版社名')
addr = models.CharField(max_length=64, verbose_name='出版社地址')
email = models.EmailField(verbose_name='邮箱地址')
class Author(models.Model):
name = models.CharField(max_length=32, verbose_name='作者名')
age = models.IntegerField(verbose_name='年龄')
author_detail = models.OneToOneField(to='AuthorDetail')
class AuthorDetail(models.Model):
phone = models.BigIntegerField(verbose_name='手机号')
addr = models.CharField(max_length=64, verbose_name='作者住址')
models.py二、路由层(url.py)
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^$', views.home, name='home'),
url(r'^book/list/', views.book_list, name='book_list'),
# 书籍增加
url(r'^book/add/', views.book_add, name='book_add'),
# 书籍的编辑
url(r'^book/edit/(?P<edit_id>\d+)', views.book_edit, name='book_edit'),
# 书籍的删除
url(r'^book/delete/(\d+)', views.book_delete, name='book_delete')
]
三、视图层（views.py）
def home(request):
return render(request, 'home.html')
def book_list(request):
book_query = models.Book.objects.all()
return render(request, 'book_list.html', locals())
# 书籍增加
def book_add(request):
if request.method == 'POST':
print(request.POST)
title = request.POST.get('title')
price = request.POST.get('price')
publish_date = request.POST.get('publish_date')
publish_id = request.POST.get('publish')
author_list = request.POST.getlist('author')
# 操作数据库存储数据
# 书籍表
book_obj = models.Book.objects.create(title=title, price=price, publish_date=publish_date,
publish_id=publish_id)
# 书籍与作者的关系表
book_obj.author.add(*author_list) # *将列表打散
# 跳转到书籍的展示页面
'''
redirect括号内可以直接写url
也可以直接写别名
但是别名需要额外的参数，就必须使用reverse解析
'''
return redirect('book_list')
# 获取当前系统所有的出版社和作者信息
publish_queryset = models.Publish.objects.all()
author_queryset = models.Author.objects.all()
return render(request, 'book_add.html', locals())
def book_edit(request, edit_id):
if request.method == 'POST':
title = request.POST.get('title')
price = request.POST.get('price')
publish_date = request.POST.get('publish_date')
publish_id = request.POST.get('publish')
author_list = request.POST.getlist('author')
models.Book.objects.filter(pk=edit_id).update(title=title, price=price, publish_date=publish_date,
publish_id=publish_id)
# 修改第三张表
book_obj = models.Book.objects.filter(pk=edit_id).first()
book_obj.author.set(author_list)
return redirect('book_list')
# 获取当前用户想要编辑的书籍对象，展示给用户看
edit_obj = models.Book.objects.filter(pk=edit_id).first()
publish_queryset = models.Publish.objects.all()
author_queryset = models.Author.objects.all()
return render(request, 'book_edit.html', locals())
def book_delete(request, delete_id):
models.Book.objects.filter(pk=delete_id).delete()
return redirect('book_list')
四、首页页面
def home(request):
return render(request, 'home.html')
def book_list(request):
book_query = models.Book.objects.all()
return render(request, 'book_list.html', locals())
# 书籍增加
def book_add(request):
if request.method == 'POST':
print(request.POST)
title = request.POST.get('title')
price = request.POST.get('price')
publish_date = request.POST.get('publish_date')
publish_id = request.POST.get('publish')
author_list = request.POST.getlist('author')
# 操作数据库存储数据
# 书籍表
book_obj = models.Book.objects.create(title=title, price=price, publish_date=publish_date,
publish_id=publish_id)
# 书籍与作者的关系表
book_obj.author.add(*author_list) # *将列表打散
# 跳转到书籍的展示页面
'''
redirect括号内可以直接写url
也可以直接写别名
但是别名需要额外的参数，就必须使用reverse解析
'''
return redirect('book_list')
# 获取当前系统所有的出版社和作者信息
publish_queryset = models.Publish.objects.all()
author_queryset = models.Author.objects.all()
return render(request, 'book_add.html', locals())
def book_edit(request, edit_id):
if request.method == 'POST':
title = request.POST.get('title')
price = request.POST.get('price')
publish_date = request.POST.get('publish_date')
publish_id = request.POST.get('publish')
author_list = request.POST.getlist('author')
models.Book.objects.filter(pk=edit_id).update(title=title, price=price, publish_date=publish_date,
publish_id=publish_id)
# 修改第三张表
book_obj = models.Book.objects.filter(pk=edit_id).first()
book_obj.author.set(author_list)
return redirect('book_list')
# 获取当前用户想要编辑的书籍对象，展示给用户看
edit_obj = models.Book.objects.filter(pk=edit_id).first()
publish_queryset = models.Publish.objects.all()
author_queryset = models.Author.objects.all()
return render(request, 'book_edit.html', locals())
def book_delete(request, delete_id):
models.Book.objects.filter(pk=delete_id).delete()
return redirect('book_list')
home.html
五、图书展示页面（book_list.html）
{% extends 'home.html' %}
{% block content %}
<a href="{% url 'book_add' %}" class="btn-success">添加</a>
<br>
<table class="table table-hover table-striped">
<thead>
<tr>
<th>ID</th>
<th>书名</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_obj in book_query %}
<tr>
<td>{{ book_obj.pk }}</td>
<td>{{ book_obj.title }}</td>
<td>{{ book_obj.price }}</td>
<td>{{ book_obj.publish_date|date:'Y-m-d' }}</td>
<td>{{ book_obj.publish.name }}</td>
<td>
{% for author_obj in book_obj.author.all %}
{% if forloop.last %}
{{ author_obj.name }}
{% else %}
{{ author_obj.name }},
{% endif %}
{% endfor %}
</td>
<td>
<a href="{% url 'book_edit' book_obj.pk %}" class="btn btn-primary btn-xs">编辑</a>
<a href="{% url 'book_delete' book_obj.pk %}" class="btn btn-primary btn-xs">删除</a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
{% endblock %}
六 图书增加（book_add.html）
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">书籍添加</h1>
<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>出版日期：
<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="author" id="" multiple class="form-control">
{% for author_obj in author_queryset %}
<option value="{{ author_obj.pk }}">{{ author_obj.name }}</option>
{% endfor %}
</select>
</p>
<input type="submit" value="新增" class="btn btn-primary btn-block">
</form>
{% endblock %}
七 图书编辑（book_edit.html）
{% extends 'home.html' %}
{% block content %}
<h1 class="text-center">书籍编辑</h1>
<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>出版日期：
<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 %}
{# 针对当前书籍对象的出版社应该默认选中 #}
{% 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="author" id="" multiple class="form-control">
{% for author_obj in author_queryset %}
{% if author_obj in edit_obj.author.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" value="确定编辑" class="btn btn-info btn-block">
</form>
{% endblock %}
