RE: Barracuda: Strange?

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----------------------------------------------
Christian Cryder [[email protected]]
Internet Architect, ATMReports.com
Barracuda - http://barracudamvc.org
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"Coffee? I could quit anytime, just not today"

> -----Original Message-----
> From: [email protected] [mailto:[email protected]]On
> Behalf Of Kirk Daries
> Sent: Friday, January 24, 2003 8:00 AM
> To: [email protected]
> Subject: Barracuda: Strange?
>
>
> Hi,
>
> I've come across some strange behaviour when rendering one of my pages.
>
> The bit that is giving the problem is my model that generates
> column totals.
>
> The problem revolves around the following logic.
>
> The page at any time can contain 1 to N number of columns.
>
> If the page has no currency/numerical columns, don't display and calculate
> the Page totals.
> Else.
> Go ahead and display the Totals.
> E.g.
>
>  <<1.jpg>>
> Notice the 'Page Total' Amounts in '1.jpg'
>
> Here's the offending html snippet.
> .
> .
>
> <tr class="Dir::Get_Data.PageTotal.PageTotalRow">
>  <td class="transparent"></td>
>  <td class="Dir::Iterate_Start.PageTotal Dir::Iterate_Next.PageTotal
> Dir::Discard">[DISCARD]</td>
>  <td class="Dir::Get_Data.PageTotal.total" align="Center"
> valign="top">[PAGE
> TOTAL]</TD>
>  <td class="Dir::Iterate_End.PageTotal Dir::Discard">[DISCARD]</td>
> </tr>
>
>
> The bit that is giving the problem is the directive with in the <TR>
> element, namely:
> Dir::Get_Data.PageTotal.PageTotalRow
>
> The 'PageTotalRow' is just used to determine if we should display
> the row at
> all and hence loop through the columns calculating totals.
>
> Here is the code from the model.
>
> } else if (key.equals("PageTotalRow")) {
>   if (this.userContext.getSumColumns(this.userDefinedCols)) {
>     return new BComponent();
>   } else {
>     return null;
> }
>
> So... if totals should be calculated... a 'new BComponent' is returned...
> and the rest of the directives should then be processed.
>
> Else
>
> Null is returned.. and the row should be 'hidden' and the rest of the
> directives not processed.
>
> But for some reason.. this is the output I'm getting(2.jpg).. as soon as I
> add the 'Dir::Get_Data.PageTotal.PageTotalRow' directive to the TR.
>  <<2.jpg>>
> Barracuda doesn't log any warnings or errors. Notice how it ignores the
> 'Discard' directive as well?
>
>
> At first I thought that the problem is that the 'PageTotal' model is a
> IterativeModel and I can't access the 'PageTotalRow' key before the
> Iterate_Start method
> is reached. That said... I moved the key to a Model without the
> IterativeModel interface.. with exactly the same result.
>
> Needless to say.. I'm stumped... :(
> Anyone got any ideas why I'm getting this behaviour?
>
> Regards
> KD
>
> Ps.
> If I completely remove the directive... everything works great..
> but I end up with unneccesary processing on pages that don't require it...
> and unneccesary output.
>
>