[Templates] Can a template discover if a block is defined?

[Derrek Long]

> You can do a TRY block.  But you must catch the error.

Yes, the try catch is perfect.
I had forgotten TT offers this.

Thanks much,

-Derrek

-----Original Message-----
From: Clinton Gormley [mailto:clint@traveljury.com] 
Sent: Friday, December 22, 2006 12:43 AM
To: Derrek Long
Cc: 'templates@template-toolkit.org'
Subject: Re: [Templates] Can a template discover if a block is defined?


You can do a TRY block.  But you must catch the error.

TRY;
  PROCESS FOO;
CATCH;
  '';
END;

>  
> 
>  
> 
> Template 2 (bar.tt):
> 
> [% PROCESS foo IF foo.defined # in other words if the block foo exists
> %]
> 
>  
> 
> In this case TT will not compile if the BLOCK foo doesn't exist in
> foo.tt.  Is there a way in TT code to prevent that compilation error?
> 
>  
> 
> Thanks,
> 
> -Derrek 
> 
>