nested templates

[thepriz]

How deep can the nesting go?

<!-- BEGIN main -->
...
<!-- BEGIN downloadListLoop -->
...
<!-- BEGIN displayNewToDay -->
 <img src="modules/downloads/images/new_1.gif" alt="{TEXT_NEW_DOWNLOADS_IN_CATEGORY_ADDED_TODAY}"><br>
<!-- END displayNewToDay -->
<!-- END downloadListLoop -->
...
<!-- END main -->

This does not seem to work correctly.

Also in the section display NewToDay, if i don't do a ctx.next("displayNewToDay ") will it still print the image or will it skip that section?

Thanks,
Dennis Przybyla

[jae77]

when nesting, you need to prefix the template variable name w/ the same string that you pass into the "next" method.

ie: TEST_NEW_DOWNLOADS_IN_CATEGORY" should really be:

displayNewToDay.TEST_NEW_DOWNLOADS_IN_CATEGORY

and if you don't invoke next, the template won't render the data (that's from the wiki faq).

be careful using the &lt-- BEGIN tags b/c that will cause the template to look for something to nest/loop over.

if you want to know where one template starts, and another begins, i recommend just putting just the template name at the start and end of the template's html block.

i added javadoc to the Context and DelegateContext to try and help w/ some of this, so do an update of those classes to pull the docs. also check the wiki entry that kevin posted.

[thepriz]

Thanks, I didn't notice the prefix (displayNewToDay.TEST_NEW_DOWNLOADS_IN_CATEGORY) in the tutorial. This fixed most of the problems I was having. However, I am still having problems with the nesting. Here is a snipit of the template:

<!-- BEGIN displayDetails -->

...

<!-- BEGIN noRegisteredUsers -->
<font class="pn-normal">{noRegisteredUsers.TEXT_NO_REGISTERED_USER_VOTES}</font>
<!-- END noRegisteredUsers -->
<!-- BEGIN mainRegisteredStatBox -->
<table border="1" width="200">
<tr>
<td valign="top" align="center" colspan="10" bgcolor="#FFFFFF">{mainRegisteredStatBox.TEXT_BREAKDOWN_OF_RATINGS_BY_VALUE}
</td>
</tr>
<tr>
<!-- BEGIN registeredStatBox -->
<td bgcolor="#e7e7e7" valign="bottom">
<img border="0" alt="{registeredStatBox.STAT_ALT}" src="modules/Downloads/images/blackpixel.gif" width="15" height="{registeredStatBox.STAT_HEIGHT}">
</td>
<!-- END registeredStatBox -->
</tr>
<tr>
<td colspan="10" bgcolor="#FFFFFF">
<table cellspacing="0" cellpadding="0" border="0" width="205">
<tr>
<td width="10%" valign="bottom" align="center">1
</td>
<td width="10%" valign="bottom" align="center">2
</td>
<td width="10%" valign="bottom" align="center">3
</td>
<td width="10%" valign="bottom" align="center">4
</td>
<td width="10%" valign="bottom" align="center">5
</td>
<td width="10%" valign="bottom" align="center">6
</td>
<td width="10%" valign="bottom" align="center">7
</td>
<td width="10%" valign="bottom" align="center">8
</td>
<td width="10%" valign="bottom" align="center">9
</td>
<td width="10%" valign="bottom" align="center">10
</td>
</tr>
</table>
</td>
</tr>
</table>
<!-- END mainRegisteredStatBox -->

...

<!-- END displayDetails -->

And the code using the template:

 displayDownloadDetailContext.put("TEXT_IS_THIS_YOUR_DOWNLOAD", "");
 displayDownloadDetailContext.put("TEXT_ALLOW_OTHER_USERS_TO_RATE", "");

 if (numberOfRegisteredVotes == 0)
 {
 DelegateContext noRegisteredUsersContext = displayDownloadDetailContext.next("noRegisteredUsers");
 noRegisteredUsersContext.put("TEXT_NO_REGISTERED_USER_VOTES", "");
 }
 else
 {
 DelegateContext mainRegisteredStatBoxContext = displayDownloadDetailContext.next("mainRegisteredStatBox");
 mainRegisteredStatBoxContext.put("TEXT_BREAKDOWN_OF_RATINGS_BY_VALUE", "");
 for (int i = 0; i < 10; i++)
 {
 DelegateContext registeredStatBoxContext = mainRegisteredStatBoxContext.next("registeredStatBox");
 registeredStatBoxContext.put("STAT_ALT", Integer.toString(registeredVoteList[ i ]) + " (" + registeredPercentPerRating[ i ] + "% )");
 registeredStatBoxContext.put("STAT_HEIGHT", Integer.toString((int)registeredChartHeight));
 }
 }

I am not getting any of the Context text in the registeredStatBox part of the template which is a nested template inside a nested template. The first two levels work fine. Any Ideas?

Thanks,
Dennis Przybyla

[thepriz]

I guess this is an issue I should post in issues. I will create a module that demonstrates the problem and post it in the bug tracking database. I think it should be possable to do more than 1 level deep nested templates and get values to appear in the text. I tried to track it down myself but it seems to exist in a class factory and the render function is empty. So the only thing I can assume is that we are generating a child class from the template and then creating the render function in this new subclass. So not knowing where the render function stuff is I could not track this one down.

[jae77]

the rendering code is auto generated when the templates are loaded and compiled - it's actually a pretty neat concept, but does make debugging issues a little harder if you don't know where to look.

definately submit a bug report on this though.

[thepriz]

Just to finish this off. I posted a bug report and found that I was doing it wrong.

<!-- BEGIN main -->

<!-- BEGIN mainLoop -->

<!-- BEGIN mainNested -->

{mainLoop.mainNested.MY_VARIABLE }

<!-- END mainNested -->

<!-- END mainLoop -->

<!-- END main -->

Notice you have to include the first nested loop's name with the current nested loop.