Re: [Semediawiki-user] Question on setting properties in templates from via chaining

[Yaron K. <ya...@wi...>]

Hi Ed,

Well, it's obviously better to have actual coordinates for each event, but
yes, given those limitations, re-saving those values is probably the
easiest approach. It could be, though, that turning both values (the
original and the copy) into "Geographic coordinate" properties will fix the
issue, somehow.

-Yaron


On Wed, Feb 12, 2014 at 4:22 PM, Ed Swing <Ed....@sa...> wrote:

> That still leaves the issue of how to set the property of one page from
> the property of a linked page. Given a Page property (eventLocation), how
> do I set a property that is equal to the coordinate of the location on the
> Event page?
>
> I am trying to graph events on a map, and the events are specified by city
> name. I have the coordinates for the cities. So I want to have the Event
> template set a Coordinate property internally that is equal to the
> coordinate of the city.
>
>
> From: ya...@gm... [mailto:ya...@gm...] On Behalf Of Yaron
> Koren
> Sent: Wednesday, February 12, 2014 1:57 PM
> To: Ed Swing
> Cc: sem...@li...
> Subject: Re: [Semediawiki-user] Question on setting properties in
> templates from via chaining
>
> Hi Ed,
>
> There's probably a simple explanation for your issue, most likely
> involving some excess HTML being returned by #show - but I think the bigger
> issue is that you have separate properties for latitude and longitude. I
> can't think of any reason why you would need to do that - whether the data
> is being set via a template or not. If it is being set by a template, you
> should just have a single template field for the coordinates, which will
> allow you to enter the data using a map form input. Even it it's two
> separate fields, you should have the template set one property that holds
> both. That way, the property can be of type "Geographic coordinate", and
> you might not even need to set the data twice - you could just query the
> value from its original page, perhaps.
>
> -Yaron
>
> On Wed, Feb 12, 2014 at 5:22 AM, Ed Swing <Ed....@sa...<mailto:
> Ed....@sa...>> wrote:
> Fellow SMWers,
>    I have a template where I am trying to set a property from properties
> on another page. Specifically, I have a set of pages with a latitude and
> longitude property (separate values). I want to combine these into a hidden
> geographic coordinate on a related page.
>
> The template part looks like this now, but it does not work:
> Template Event:
> {{#set:hasCoordinate={{#show:{{{eventLocation}}} | ?latitude}},
> {{#show:{{{eventLocation}}} | ?longitude}} }}
>
> The page specified in eventLocation does have both a latitude and
> longitude value. hasCoordinate already has the Geographic Coordinate type.
> But hasCoordinate is not set.
>
> I have also tried changing the template to the following:
>
> [[hasCoordinate::{{#show:{{{eventLocation}}} | ?latitude}},
> {{#show:{{{eventLocation}}} | ?longitude}} ]]
>
> In this case, the coordinate shows up on the page in geographic form.
> However, the property is not set for some reason.
>
> Please help!
>
> Edward Swing
> Applied Research Technologist
> Vision Systems + Technology, Inc., a SAS Company
> 6021 University Boulevard * Suite 360 * Ellicott City * Maryland * 21043
> Tel: 410.418.5555 Ext: 919 * Fax: 410.418.8580
> Email: Ed....@vs...<mailto:Ed....@vs...><mailto:
> Ed....@vs...<mailto:Ed....@vs...>>
> Web: http://www.vsticorp.com<http://www.vsticorp.com/>
>
>
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