Python django框架笔记（四）：数据分页和CSRF跨站点请求伪造

 1 <span class="step-links">
 2       {# 如果有上一页，返回true #}
 3         {% if posts.has_previous %}
 4             <a href="?page=1">&laquo;首页 </a>
 5             <a href="/blog/?page={{ posts.previous_page_number }}">上一页</a>
 6         {% endif %}</span>
 7         {# posts.paginator.page_range 返回页码可迭代范围 ，例如有5页，这时候和range(1,5)是一样的。[1,2,3,4] #}
 8         {% for post_num in posts.paginator.page_range %}
 9                 <a href="/blog/?page={{ post_num }}">{{ post_num }}</a>
10         {% endfor %}
11      <span class="current">
12           {#  如果有下一页，返回true#}
13         {% if posts.has_next %}
14             <a href="/blog/?page={{ posts.next_page_number }}">下一页</a>
15             <a href="/blog/?page={{ posts.paginator.num_pages }}">尾页 &raquo;</a>
16         {% endif %}
17      </span>
18     <span class="current">
19             Page {{ posts.number }} of {{ posts.paginator.num_pages }}
20         </span>

 1 from blog.models import BlogPost
 2 from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
 3 
 4 #获取博客信息并渲染到页面上
 5 def archive(request):
 6     #获取 BlogPost的所有数据并按timestamp倒序排序，timestamp相同则根据title排序
 7     all_posts = BlogPost.objects.all().order_by('-timestamp','title')
 8     #实例化Paginator，限制每页显示10条数据
 9     paginator = Paginator(all_posts, 10)
10     #获取用户选择的页码
11     page = request.GET.get('page')
12     try:
13         posts = paginator.page(page)#获取page页的数据
14     except PageNotAnInteger:#页码不为整数则获取第一页数据
15         posts = paginator.page(1)
16     except EmptyPage:#超出最大页码则获取最后一页的数据
17         posts = paginator.page(paginator.num_pages)
18     #return render_to_response('archive.html', {'posts': posts,'form':BlogPostForm},RequestContext(request))
19     return render(request,'archive.html',{'posts': posts,})

1 <form action="/blog/create/" method="post">{% csrf_token %}
2     <table>{{ form }}</table><br>
3     <input type=submit>
4 </form>

1 from django.shortcuts import render,render_to_response
2 from blog.models import BlogPost,BlogPostForm
3 from django.template import RequestContext
4 
5 #获取博客信息并渲染到页面上
6 def archive(request):
7     posts = BlogPost.objects.all().order_by('-timestamp','title')
8     return render_to_response('archive.html', {'posts': posts，'form':BlogPostForm},RequestContext(request))

from django.shortcuts import render
from blog.models import BlogPost,BlogPostForm

#获取博客信息并渲染到页面上
def archive(request):
     posts = BlogPost.objects.all().order_by('-timestamp','title')
     return render(request,'archive.html',{'posts': posts,'form':BlogPostForm})