1434897 - Localized versions not inherit redirects from english version

Status: RESOLVED WONTFIX

(developer.mozilla.org Graveyard :: Localization, enhancement, P3)

Description

[diraria]

What did you do?
================
1. Assume there is redirect from page /en-US/B to /en-US/C
2. Assume that page /ru/C exists
3. Assume on page /en-US/A there is link to /en-US/B
4. Assume on page /ru/A there is link to /ru/B
5. Move to page /ru/A and click to link to /ru/B

What happened?
==============
Page /en-US/C will be opened

What should have happened?
==========================
Page /ru/C will be opened

Is there anything else we should know?
======================================
Also on page /ru/A link to /ru/B highlights in red, hovewer on /en-US/A link to /en-US/B highlights as usual.

Example of such pages:

/ru/A --- /ru/docs/Web/HTML/Element/img
/ru/B --- /ru/docs/HTML/Content_categories
/ru/C --- /ru/docs/Web/Guide/HTML/Content_categories

Comment 1

[John Whitlock [:jwhitlock]]

Here's more on the example.

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img has a blue box with "Content Categories" at the top. That link went to https://developer.mozilla.org/en-US/docs/HTML/Content_categories. Links like "Flow content", "phrasing content" go to anchor links on that page as well.

https://developer.mozilla.org/en-US/docs/HTML/Content_categories is a 301 redirect to https://developer.mozilla.org/en-US/docs/Web/HTML/Content_categories

https://developer.mozilla.org/en-US/docs/Web/HTML/Content_categories is a 301 redirect to
https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Content_categories

The Russian translation is at https://developer.mozilla.org/ru/docs/Web/HTML/Element/img. The "Категории контента" link goes to https://developer.mozilla.org/ru/docs/HTML/Content_categories, which is what you'd expect from the English version. This document does not exist.

If a user accesses https://developer.mozilla.org/ru/docs/HTML/Content_categories, MDN will redirect users to the English document https://developer.mozilla.org/en-US/docs/Web/HTML/Content_categories, and follow the redirect chain.

There is a Russian translation of the destination doc:

https://developer.mozilla.org/ru/docs/Web/Guide/HTML/Content_categories

It will be challenging to fix this automatically for all cases. In this specific case, we can't create a redirect document on the Russian side to make it work. The fix needs to be:

1) On the English document, update the links to the new location of Content_categories (Done!)
2) On the Russian document, "translate" the document to pick up the new URLs.

diraria, can you take care of applying this change to the Russian document?

Comment 2

[diraria]

Yes, of course, I have corrected links on page https://developer.mozilla.org/ru/docs/Web/HTML/Element/img. But the general problem still exists and it is sadly that it can't be fixed automatically. 

Just some information: if I counted correctly on that page (/ru/docs/Web/HTML/Element/img) there were nine links that should be corrected. And there are many another pages, where, I think, also exists links that should be corrected. Too many to fix them manually...

Comment 3

[John Whitlock [:jwhitlock]]

There's 513 pages with 2033 links to en-US/docs/HTML/Content_categories. These would need to be updated to en-US/docs/Web/Guide/HTML/Content_categories to avoid this particular bug without fixing code. More work is needed to count redirect links in general.

For this one, in the Django shell:

from kuma.wiki.models import Document
from pyquery import PyQuery as pq
page_count = 0
instance_count = 0
for doc in docs.only('id', 'html'):
  page = pq(doc.html)
  links = page('a[href*="en-US/docs/HTML/Content_categories"]') 
  if links:
    page_count += 1
    instance_count += len(links)

print page_count, instance_count

Comment 4

[BMO Automation]

MDN Web Docs' bug reporting has now moved to GitHub. From now on, please file content bugs at https://github.com/mdn/sprints/issues/ and platform bugs at https://github.com/mdn/kuma/issues/.