Re: [Semediawiki-user] Dynamic Page Listing (DPL) vs. SemanticMediaWiki

[<ee...@tn...>]

> From: "Reini Urban" <ru...@x-...>
> Sent: Monday, September 03, 2007 10:23 AM
>
> 2007/9/2, Eep² <ee...@tn...>:
> > You guys must've missed my post days ago about this (and I've now disabled SMW because DPL can do everything it can--and more):
> >
> > I just came up with an example where DPL replaces SMW while trying to figure out how to display the same page as 2 different 
> > things
> > (like an action vs. object). Using DPL, I can simply create lists of which pages in a category link to page/subpage
> > ("property/value") or namespace (or not):page ("property:value"). So, using this design, I can embed a DPL query to list all 
> > pages
> > in the "Games" category that link to the current page as a subpage (or page in a namespace) that links to an action, effect, 
> > object,
> > etc--and all on the same page.
> >
> > {{#dpl:
> > category=Games
> > |linksto=action/{{PAGENAME}} <!-- or action:{{PAGENAME}} -->
> > |redirects=include
> > |resultsheader=<h2>Games (%PAGES%)</h2>
> > |noresultsheader=<h2>Games (0)</h2>''No games have this action.''
> > }}
> >
> > {{#dpl:
> > category=Games
> > |namespace=Action
> > |linksto={{PAGENAME}}
> > |redirects=include
> > |resultsheader=<h2>Games (%PAGES%)</h2>
> > |noresultsheader=<h2>Games (0)</h2>''No games have this action.''
> > }}
> >
> > The only problem is DPL doesn't handle redirects seamlessly (like MediaWiki's Special:Whatlinkshere page does) and requires 
> > obscure
> > nested queries (and yet another template--DPL is a template abuser/whore, as is Semantic Forms).
> >
> > No silly link syntax and no excessive server hits with SMW having to figure out all those relations (since DPL doesn't require 
> > an
> > extra database table). SMW's "facts" about section is replaced with DPL's list ouput which can be configured to be ANYWHERE on 
> > the
> > page, ordered however, and as a table, list, etc, thus not forcing a specific ordering/layout method.
> >
> > Tell me, what is the point of SMW again?
> >
> > Time to stop reinventing the wheel and work together, DPL/SMW devs...
>
> I believe you missed the point completely.
> Simple dynamic database queries to filter pagelists are not the Semantic Web.
>
> * Attributes are unified and can be calculated with,
> {{#dpl-not:
> category=Games
> price < 100€
> |linksto=action/{{PAGENAME}} <!-- or action:{{PAGENAME}} -->
> }}

So DPL is limited in performing less-/greater-than queries, but that's not a difficult thing to add with a math function via a 
nested DPL statement. Perhaps Gero (DPL's current dev) can provide an example of how this would be done, but I'm sure it's possible 
with DPL.

> * An extra relation link table is a huge performance plus,

You have an odd definition of "huge performance plus" then because I don't consider excessive server calls (thus making pages load 
slower and longer) a "huge performance plus"...

> * Inference. Only the simpliest queries can be done with such dynamic pagelists.

Not quite; try actually using DPL before making such an ignorant statement.

> dpl layout rambazamba is a completely different topic and cannot be compared to
> SMW. SMW should really use some fancy layout backend for result lists.
> Such as DPL's for example. But the DPL API is silly in my eyes. There must
> be something better around.

Actually, anything can be compared to/with anything else. Comparison is not limited to just similarities but also includes 
differences.