基于上次创建ManyToMany关系的模型之后，现在看这些数据模型怎么通过 views.py呈现

#修改urls.py 把地址 http://127.0.0.1/blog/show_author 视图方法定义到 blog.views.show_author

vim csvt06/urls.py

from django.conf.urls import patterns, include, url
# Uncomment the next two lines to enable the admin:
# from django.contrib import admin
# admin.autodiscover()
urlpatterns = patterns('',
    # Examples:
    # url(r'^$', 'csvt06.views.home', name='home'),
    # url(r'^csvt06/', include('csvt06.foo.urls')),
    # Uncomment the admin/doc line below to enable admin documentation:
    # url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
    # Uncomment the next line to enable the admin:
    # url(r'^admin/', include(admin.site.urls)),
    url(r'^blog/show_author$', 'blog.views.show_author'),
)



#修改视图模块，定义方法 show_author

vim blog/views.py

from blog.models import Author, Book
from django.shortcuts import render_to_response
def show_author(req):
authors = Author.objects.all()
return render_to_response('show_author.html',{'authors':authors})

#创建模板，输出传递的变量看是否有问题

mkdir blog/templates && vim blog/templates/show_author.html

`authors`

Django-mtm-01

#上面输出没有问题之后，编辑模板文件，这里使用了 for循环关于模板的更多使用方法可以参考

https://docs.djangoproject.com/en/1.5/ref/templates/builtins/#

vim blog/show_author.html

{% for author in authors %}
<div>
<h3>`author`</h3>
{% for book in author.book_set.all %}
<li>`book`</li>
{% endfor %}
</div>
{% endfor %}

#浏览器访问之后显示如下

Django-mtm-02



#上面页面是根据author 和该author所对应的书籍，既然是ManyToMany的关系，下面就在根据Book输出Author,增加的步骤和上边一样

#

vim csvt06/urls.py

from django.conf.urls import patterns, include, url
# Uncomment the next two lines to enable the admin:
# from django.contrib import admin
# admin.autodiscover()
urlpatterns = patterns('',
    # Examples:
    # url(r'^$', 'csvt06.views.home', name='home'),
    # url(r'^csvt06/', include('csvt06.foo.urls')),
    # Uncomment the admin/doc line below to enable admin documentation:
    # url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
    # Uncomment the next line to enable the admin:
    # url(r'^admin/', include(admin.site.urls)),
    url(r'^blog/show_author$', 'blog.views.show_author'),
    url(r'^blog/show_book$', 'blog.views.show_book'),
)

#

vim blog/views.py

from blog.models import Author, Book
from django.shortcuts import render_to_response
def show_author(req):
authors = Author.objects.all()
return render_to_response('show_author.html',{'authors':authors})
def show_book(req):
books = Book.objects.all()
return render_to_response('show_book.html',{'books':books})


#

vim blog/templates/show_book.html


{% for book in books %}
<div>
<h3>`book`</h3>
{% for book in book.authors.all %}
<li>`book`</li>
{% endfor %}
</div>
{% endfor %}

#浏览器访问显示如下：

Django-mtm-03