Loading DCR in TPL

Hello

I'm loading a DCR into a presentation template via 'iw_load_dcr' into a variable called 'content'

Now that I've got this variable 'content' I want to pass that as a parameter into a presentation template I am including (via 'iw_include')

Now, in the _included_ presentation template, I want to iterate through the hash. My question is, how do I do that? I've been playing around with using keys %$content->{'Node'} but that gives me the vague error screen when I preview a DCR.

Here's my snippet of code:

From the template that is being previewed (the one that loads a DCR, and includes the child TPL, and passes it a reference of the 'content' loaded from the DCR):


<iw_load_dcr var="nav_tabs" file="templatedata/State_Pages/Navigation_Tabs/data/$state_name/nav_tabs" mode="docroot" />

<iw_include pt='templatedata/State_Pages/Navigation_Tabs/presentation/navigation_tabs.tpl'
 page_param="Benefits Sheet"
 content_param_val='(  [iwpt_dcr_list("nav_tabs")]  )' />

Now, in the 'navigation_tabs.tpl' I have this code:


<iw_perl>
$content = $iw_arg{content};
</iw_perl>
 ... snipped ...
<iw_iterate list="(keys %$content->{'State_Navigation_Tabs'})" var="Tab">
... snipped ...
</iw_iterate>

the above 'navigation_tabs.tpl' code gives me the error. If I remove the pointer to the key, I don't get an error, but the list is to "high up" and nothing happens in my loop.

So, I'm sure someone has done this before, I'm hoping someone can just shed some light as to what I actually need to be looping on.

The %content hash is what is loaded straight from a plain old DCR, nothing fancy.

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Comments

joelb72772

Could you provide us more details about your intention?
I specially mean to know if "nav_tabs" is the name of the DCR or it is a replicant field within $state DCR?

-PB

EmptyPageExample.rptdesign

Adam Stoller

I don't think you can pass a perl structure (hash, array) through to an iwpt_include'd PT (I could be wrong, I don't tend to use the XML-style PTs).

If you wrote your PTs in Perl and used a modular approach for the subroutines, then you could reference those subroutines from the parent PT and pass (a reference to) the perl structure to them.

Migrateduser

You can pass any type into an iw_included PT.

Adam Stoller

You can pass any type into an iw_included PT.

Okay - then maybe (?) the problem is that in the main-PT the code says:

... content_param_val='(  [iwpt_dcr_list("nav_tabs")]  )' ...

and the included PT code says:

$content = $iw_arg{content};

and the two strings need to be consistent?

Also I'm not entirely sure what's being passed there - since iwpt_dcr_list will return an array which appears to be wrapped as a reference '[...]' which then is wrapped as-if it were an array again '(...)' ?

blinder

actually, after thinking about this from a different perspective, i came up with something that works much better. Instead of passing in a hash into a presentation template, i just passed in a string that i used to determin which DCR to load, and simply used the load DCR call in the included PT.

That way i got around having to monkey around with passing complex objects into the presentation template.

thanks for the input though, much much appreciated.