Holger,

Thanks again for your help.  And, you are correct, I'm not at all surprised 
that diagnosing performance issues is complicated.  It always is, no matter the 
language nor platform.

I inserted the div to echo the output of ?this but never made it to rendering.  
This time, however, I received a non-responsive Javascript error for jquery.js 
which is probably indicative of the fact that it could be something a little 
tedious to work through on a mailing list, but I'm happy to try or reach out to 
support.

Let me know your thoughts,

-Adam

From: <[email protected]> on behalf of Holger Knublauch 
<[email protected]>
Reply-To: "[email protected]" <[email protected]>
Date: Sunday, October 23, 2016 at 6:08 PM
To: "[email protected]" <[email protected]>
Subject: Re: [topbraid-users] EVN: Customizing forms with Spin templates

Hi Adam,

you may not be surprised if I say this is hard to diagnose without more 
information. You seem to be concerned about the performance and suspect 
something is wrong with the template or the swa:ResultSetObjectsView element. I 
see nothing wrong with the template, but I would like to confirm that ?this is 
in fact pre-bound correctly - to verify just add a line such as <div>This is {= 
?this }</div> and re-run the form. If it's not pre-bound then the query may do 
some extra iterations, although OTOH you would see more results too. I assume 
the result rows are showing up as you intended, but it's just slow?

As an aside, swa:ResultSetObjectsView only works in view mode, and you would 
also see those values in edit mode. If you don't want this, surround the 
ui:call with <ui:if ui:condition="{= swa:isViewMode() }">...</ui:if>

Holger

On 21/10/2016 22:39, Adam Kimball wrote:
Hi all,

I'm trying to customize an EVN form with data that comes from a Spin template.  
Here is a simplified example of a template's body 
(hw-spin:ExactCodesForContentAssetTemplate)

SELECT ?exact_code
WHERE {
    ?asset content_asset_schema:level_1 ?concept .
    ?concept hwcv_sc:exact_code ?exact_code .
}
ORDER BY (?exact_code)

(?asset is a spin:constraint - arg)  - This is a very basic query in our system 
and it runs fast from the sparql endpoint or Composer

>From within a class's ui:instanceView definition, I've added the following:

<swa:ObjectsEnum arg:label="Codes">
  <ui:call arg:asset="{= ?this }" 
ui:template="hw-spin:ExactCodesForContentAssetTemplate">
    <swa:ResultSetObjectsView arg:label="Exact Codes" arg:resultSet="{= ?rs }"/>
  </ui:call>
  ...
</swa:ObjectsEnum>

I actually have three such calls where each call is a rather simple template 
that utilizes the same argument and should execute very quickly.   I'm pretty 
certain that although my aim is good the whole business with 
swa:ResultSetObjectsView is not right....

Although this does seem to work, it is putting a huge load on my dev instance.  
Something is spinning, even before I get to the point of rendering a form for 
the instance in question.  When this code is in the form, even bringing up the 
taxonomy is terrible, when its out everything zips along.  So something is 
clearly wrong.

Thanks to anyone who has read this far!
-Adam
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