Re: [Wp-mirror-list] [Xmldatadumps-l] Template expansion inconsistency

[gnosygnu]

Hi. I believe the problem is with the import of the [[Template]] pages
into the page table

Your SQL output shows the following:

page_title: Template:Ndash

Instead, the page_title should just be "Ndash", not "Template:Ndash".
Note that the page is already marked as page_namespace = 10. Also,
note that no other namespace (Category, Help, Project, etc) will have
a "page_title" with the namespace name in front of it. i.e.: Category
"Earth" will be in the page table with a page_title of "Earth" not
"Category:Earth"

MediaWiki has code that takes {{Template:A}} and makes it effectively
the same as {{A}}. Note that this is just regular page transclusion
via namespace. You can do "{{Category:Earth}}" and it will transclude
the contents of the page "Category:Earth"

Hope this helps.


On Fri, Feb 21, 2014 at 5:21 PM, wp mirror <address@hidden> wrote:
> Dear Sir or Madam,
>
> I am not sure to which person or list I should address this question to.
>
> 0) Objective
>
> I am in the process of building DEB packages for: WP-MIRROR 0.7, the
> latest development version of MediaWiki 1.23, and a set of MediaWiki
> extensions.
>
> The objective is to this:  That a page rendered by a mirror should
> look the same a that page rendered by the WMF site.
>
> 1) Problem
>
> In the process of testing mirrors, I noticed that many templates were
> not expanding, and instead being rendered as red-links.
>
> 2) Example
>
> To illustrate, consider the Ndash template, which appears on many
> pages such as <http://simple.wikipedia.org/wiki/August>.  It appears
> in the underlying database:
>
> mysql> select page_id,page_title,rev_len,old_text from
> simplewiki.page,simplewiki.revision,simplewiki.text where
> page_id=rev_page and rev_text_id=old_id and page_title like
> 'Template:Ndash' limit 10\G
> *************************** 1. row ***************************
>    page_id: 132985
> page_title: Template:Ndash
>    rev_len: 65
>   old_text: &ndash;<noinclude>
> [[Category:Formatting templates]]
> </noinclude>
> 1 row in set (0.25 sec)
>
> 3) Special:ExpandTemplates
>
> To test the above example ``Template:Ndash'', I use Special:ExpandTemplates.
>
> 3.1) Input text
>
> Today is the {{CURRENTDAY}} day.</br>
> This server is {{SERVER}}, script path {{SCRIPTPATH}}, current MW
> version {{CURRENTVERSION}}.</br>
> This site is {{SITENAME}}. Full page name is {{FULLPAGENAME}}.</br>
> <table>
> <tr><th>Template</th><th>Expanded</th><th>page_id</th><th>rev_len</th></tr>
> <tr><td>Ndash</td><td>{{Ndash}}</td><td>{{PAGEID:
> Ndash}}</td><td>{{PAGESIZE: Ndash}}</td></tr>
> <tr><td>Template:Ndash</td><td>{{Template:Ndash}}</td>
>     <td>{{PAGEID: Template:Ndash}}</td><td>{{PAGESIZE:
> Template:Ndash}}</td></tr>
> <tr><td>Template:Template:Ndash</td><td>{{Template:Template:Ndash}}</td>
>      <td>{{PAGEID: Template:Template:Ndash}}</td><td>{{PAGESIZE:
> Template:Template:Ndash}}</td></tr>
> </table>
>
> 3.2) <http://simple.wikipedia.site/wiki/Special:ExpandTemplates> Preview
>
> Here is the result from the WMF site:
>
> Today is the 21 day.
> This server is //simple.wikipedia.org, script path /w, current MW
> version 1.23wmf14 (f8b9201).
> This site is Wikipedia. Full page name is My template.
> Template        Expanded        page_id rev_len
> Ndash   -       0       0
> Template:Ndash  -       132985  65
> Template:Template:Ndash Template:Template:Ndash         0       0
>
> Both {{Ndash}} and {{Template:Ndash}} expand as expected.
>
> 3.3) <http://simple.wikipedia.site/wiki/Special:ExpandTemplates> Preview
>
> Here is the result from the mirrored site:
>
> Today is the 21 day.
> This server is http://simple.wikipedia.site, script path /w, current
> MW version 1.23alpha.
> This site is simplewiki. Full page name is My template.
> Template        Expanded        page_id rev_len
> Ndash   Template:Ndash  0       0
> Template:Ndash  Template:Ndash  0       0
> Template:Template:Ndash -       132985  65
>
> Only {{Template:Template:Ndash}} expands!
>
> 4) Question
>
> Why do I need to prepend an extra ``Template:'' to make the templates
> work for the mirror?
>
> Better yet: Could someone tell me where in the MediaWiki core I can
> find the code that takes the template (e.g. {{Ndash}} or
> {{Template:Ndash}}) and converts it into an SQL query that SELECTs the
> template expansion from the underlying database?
>
> Sincerely Yours,
> Kent
>
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