[15:07:20] <Roland>	 Hi. How to implement query on template page? Get all pages, where a date propery is older than date property on current page?   {{#ask:[[Category:Issue]] [[Closing date::<{{{?Some date property}}}]] |?# }}
[15:11:42] <Roland>	 Or is this a case of 'http://semantic-mediawiki.org/wiki/Help:Selecting_pages#Things_that_are_not_possible'
[15:19:49] <FoxT>	 Roland: Looks alright. You just have to call that template with the named parameter you  used. Something like {{SomeTemplate|?Some date property=2014-09-07}}
[20:28:26] <raftab>	 Hi all.  I'm looking into a smw installation to handle some structured data, using Semantic Forms as well, and maybe later getting people to use the semantic features more :)  Is it possible to also structure navigation through any extensions - eg for a book to have child pages link to prev/next - or is that something I should write a custom extension for?
[20:36:57] <grrrit-wm>	 (PS1) Yaron Koren: Fix so that empty fields again won't show up in generated wikitext [extensions/SemanticForms] - https://gerrit.wikimedia.org/r/158995
[20:37:05] <grrrit-wm>	 (CR) jenkins-bot: [V: -1] Fix so that empty fields again won't show up in generated wikitext [extensions/SemanticForms] - https://gerrit.wikimedia.org/r/158995 (owner: Yaron Koren)
[20:37:38] <Yaron>	 raftab: what do you mean by "child pages" for a book?
[20:38:09] <grrrit-wm>	 (CR) Yaron Koren: [C: 2 V: 2] Fix so that empty fields again won't show up in generated wikitext [extensions/SemanticForms] - https://gerrit.wikimedia.org/r/158995 (owner: Yaron Koren)
[20:42:21] <raftab>	 Yaron: using the example of pages in a book, if pages had a type::number pagenumber, is there a way to build automatic navigation from say a parent (a book) to the organised pages, and pages linking to next/previous?
[20:43:26] <Yaron>	 Well, the first of those is quite easy - something like {{#ask:[[Has book::{{PAGENAME}}]]}} , assuming that each page links back to its book.
[20:44:19] <raftab>	 which would make sense, and be possible using the forms
[20:45:26] <Yaron>	 The second you might be able to do with something like "{{#ask:[[pagenumber::{{#expr:{{{pagenumber|}}} - 1}}]]}}", assuming the pages are in sequential order.
[20:45:49] <Yaron>	 I'm assuming that there's a "pagenumber" property as well as a "pagenumber" template field.
[20:46:12] <Yaron>	 ...and "+ 1" for the next page.
[20:47:50] <raftab>	 Heh, yes, that makes sense... and can be handled using templates... nice, thanks :)