Django小技巧01: redirect

Posted October 25, 2018

翻译整理自: simpleisbetterthancomplex.com

from django.shortcuts import redirect

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redirect函数会返回一个HttpResponseRedirect类，比起HttpResponseRedirect类我更喜欢使用更简洁的redirect. 它会使我的代码保持一致。

推荐使用 redirect 的理由是，您可以指定不同类型的参数(model, url, endpoint)，指定 endpoint 的时候还可以直接指定URL，不用再用django.urlresolvers.reverse来解析一遍了，简洁了作用域环境.

下面我们来看看实例:

一个模型实例, 这将自动调用模型的get_absolute_url()方法;

from django.shortcuts import redirect
from simple_blog.models import Post

def post_view(request, post_id):
    post = Post.objects.get(pk=post_id)
    return redirect(post)
    # equivalent to: return HttpResponseRedirect(post.get_absolute_url())

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反解析endpoint URL 名称(接受视图 endpoint 参数)

from django.shortcuts import redirect
from simple_blog.models import Post

def post_view(request, post_id):
    return redirect('post_details', id=post_id)
    # equivalent to: return HttpResponseRedirect(reverse('post_details', args=(post_id, )))

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原始URL (aboluste 或者 relative)

from django.shortcuts import redirect

def relative_url_view(request):
    return redirect('/posts/archive/')
    # equivalent to: return HttpResponseRedirect('/posts/archive/')

def absolute_url_view(request):
    return redirect('https://simpleblog.com/posts/archive/')
    # equivalent to: return HttpResponseRedirect('https://simpleblog.com/posts/archive/')

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阅读更多关于redirect的文档. Django Documentation

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#Django小技巧