如果 URL 与 slug 不匹配，则规范链接和 301 重定向

发布于 2024-10-14 01:28:51 字数 890 浏览 3 评论 0原文

我正在尝试在 django/python 中实现类似于堆栈溢出的 URL 方案。

例如，pk 与标题的 slug 一起存储在 URL 中，因此对于这个问题（id #4787731），URL 是

https://stackoverflow.com/questions/4787731/canonical-links-and-301-redirect-if-url-doesnt-match-slug

如果我稍后更改标题（或者只是在 url 中放入一些随机的内容），那么该网站仍然会知道我要问哪个问题（通过 ID）并将 301 重定向到正确的 URL - 例如尝试。

https://stackoverflow.com/questions/4787731/canonical-links-MODIFIED-URL

那么

在我的页面中包含规范链接的最佳方式是什么，例如

（我可以使用 get_absolute_url）

识别当前 URL 与规范链接不匹配并发出 301 的最佳方法是什么？

注意 - 这个问题类似，但仅解决动态或静态生成 slug。

原文

I am trying to implement a URL scheme similar to stack overflow's in django/python.

E.g. the pk is stored in the URL along with a slug of the title so for this question (id #4787731) the URL is

https://stackoverflow.com/questions/4787731/canonical-links-and-301-redirect-if-url-doesnt-match-slug

If I later change the title (or just put in some random crud into the url) then the site will still know which question I am after (by the ID) and will 301 redirect to the correct URL - e.g. try.

https://stackoverflow.com/questions/4787731/canonical-links-MODIFIED-URL

What is the best way to include canonical links in my pages such as
<link rel="canonical" href="https://stackoverflow.com/questions/4787731/canonical-links-and-301-redirect-if-url-doesnt-match-slug">

(can I use get_absolute_url)

What is the best way to recognize that the current URL doesn't match the canonical link and issue a 301?

Note - This question is similar but only addresses the case of generating the slug on the fly or statically.

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夏夜暖风 2024-10-21 01:28:51

1：我认为如果存在 301，那么使用规范标签就没有意义。

让我们想象一下将 URL 从 /q/111/hello-world 更改为 /q/111/foobar 的场景。引擎不会假设两者相等，除非它们访问带有规范标记的原始 url，指向 /q/111/foobar （它不会，因为它现在是 301，切断任何页面之间关系的证明）。

2：我会用直接的方式来做。定义一个非唯一的 slug 字段并与详细视图中捕获的 URL 进行比较。

# models
class MyModel(models.Model):
    # ...
    non_unique_slug = models.SlugField()

    def get_absolute_url(self):
        return "/questions/%s/%s" % (self.id, self.non_unique_slug)


# urls
    r'^questions/(?P<id>\d+)/(?P<slug>[\w-]+)/
 

# views
def my_view(request, id, slug):
    page = Page.objects.get(id=id)
    if not slug == page.slug:
        return http.HttpResponsePermanentRedirect(page.get_absolute_url())

    # render page
    return direct_to_template(request, "foobar.html", {'page': page})

1: I don't think there's a point in using the canonical tag if there are 301s anyways.

Let's just imagine a scenario where you change the URL from /q/111/hello-world to /q/111/foobar. The engines won't assume the two are equal unless they visit the original url with the canonical tag on it pointing to /q/111/foobar (which it wont, because it's now a 301, severing any proof of a relationship between the pages).

2: I'd do it the straight forward way. Define a non unique slug field and compare vs the captured URL in your detail view.

# models
class MyModel(models.Model):
    # ...
    non_unique_slug = models.SlugField()

    def get_absolute_url(self):
        return "/questions/%s/%s" % (self.id, self.non_unique_slug)


# urls
    r'^questions/(?P<id>\d+)/(?P<slug>[\w-]+)/
 

# views
def my_view(request, id, slug):
    page = Page.objects.get(id=id)
    if not slug == page.slug:
        return http.HttpResponsePermanentRedirect(page.get_absolute_url())

    # render page
    return direct_to_template(request, "foobar.html", {'page': page})

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