W3TPL/recipes

Listing Pages in a Category

This bit is for a feature-in-development. I'll probably be adding full SQL capability at some point, but I want to make sure it is secure (and can be disabled in LocalSettings) before putting it in; for now, W3 is going to have data access only by filtering tables -- which can also be data views, i.e. potentially very complex SQL but only if you have db permission to create views.

SQL

<mysql>CREATE OR REPLACE VIEW qryW3_Titles_Catgs AS

 SELECT * FROM
 categorylinks AS cl LEFT JOIN page AS p ON cl_from=page_id;</mysql>

• Very similar to the dpl_clview view used by DPL

Wikitext

<let name=including val="1" />
</hide><for table="qryW3_Titles_Catgs" where="(cl_to='Data/target') AND (page_namespace=0)" name=pg>
  <let name=pg_title val="@row.pg.page_title" />
  <load page=$pg_title />

  <let name=title_link>[[</let>
  <let name=title_link append copy=pg_title />
  <let name=title_link append>|</let>
  <let name=title_link append copy=keyname />
  <let name=title_link append>]]</let>
  <echo>
* <get name=title_link />: "<get name=title />": <get name=source /></echo>
</for>

• Replace "Data/target" with the name of the category you want to list
• Alter the line which begins with Template:Xmltag (i.e. everything between the Template:Xmltag tags) to display what you want; "title" and "source" are from an actual live installation (PsyCrit) and are defined within the pages in that category, so each output line gives a little information about the page (effectively a mini-"report")
• The "including" variable tells the included pages not to show their category, so that this page won't think it is also in that same category.