Re: [Semediawiki-user] Getting pages without a property

[Laurent A. <la...@al...>]

There is no way to query for the absence of a property.

The only way around it is to use templates and ensure that all properties
have a default value if the corresponding template parameter is null.

- Laurent


On Tue, Apr 16, 2013 at 10:49 AM, Tac Tacelosky <ta...@gm...> wrote:

> Is it possible to do an ask query for a list of all the pages that are
> missing a particular property?  Or should I set the property to blank and
> query for that?
>
> I'm also thinking that I could do an {{#if statement and check for the
> property, and if it's empty set another Property or Category, then do the
> query on that.
>
> Neither way feels particularly natural.  I'm trying to develop a workflow
> so that when a new page comes in, there are a sequence of templates / forms
> that get applied.  Some of those forms are dependent on other properties.
>  For example, on an image I'd like to have a "clarity" property.  If the
> clarity is blurry, I'll tag it for delete.  If it's clear, I'll have
> another form on that page to identify words on the page, etc.
>
> So my idea was when an image is first uploaded, I look and see if the
> clarity property has been set.  I need to access these images via the API,
> because they integrate with external data.
>
> Any thoughts to an approach?  It's not just images, it's also things like
> saying "If this letter indicates a specific violation, then there's another
> form that needs to be filled out with more details".
>
> Thanks,
>
> Tac
>
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-- 
- Laurent Alquier
http://www.linfa.net