Re: [Templates] Can a template tell if it has been PROCESSed or INCLUDEd?
> This won't work. That variable will be there in an INCLUDE as well, > because, "The 'INCLUDE' directive localises (i.e. copies) all variables > before processing the template."[1] It doesn't give you a clean slate. E... You are right. I don't know how I thought. :-( Gabor ___ templates mailing list templates@template-toolkit.org http://mail.template-toolkit.org/mailman/listinfo/templates
Re: [Templates] Can a template tell if it has been PROCESSed or INCLUDEd?
On Sep 25, 2014, at 1:13 PM, Chad Wallace wrote: > This won't work. That variable will be there in an INCLUDE as well, > because, "The 'INCLUDE' directive localises (i.e. copies) all variables > before processing the template."[1] It doesn't give you a clean slate. Argh, thanks for catching my leap in logic. You saved me the 10 minutes of trying it out. I'll try Andy's version later. Thanks, all. xoa -- Andy Lester => www.petdance.com ___ templates mailing list templates@template-toolkit.org http://mail.template-toolkit.org/mailman/listinfo/templates
Re: [Templates] Can a template tell if it has been PROCESSed or INCLUDEd?
On Thu, 25 Sep 2014 12:35:20 -0500 Andy Lester wrote: > However, that does give me an idea. Perhaps if I look for an > app-wide global variable that should always exist, and it's not > there, then I've been INCLUDEd correctly. This won't work. That variable will be there in an INCLUDE as well, because, "The 'INCLUDE' directive localises (i.e. copies) all variables before processing the template."[1] It doesn't give you a clean slate. [1] http://template-toolkit.org/docs/manual/Directives.html#section_INCLUDE -- C. Chad Wallace, B.Sc. The Lodging Company http://www.lodgingcompany.com/ OpenPGP Public Key ID: 0x262208A0 ___ templates mailing list templates@template-toolkit.org http://mail.template-toolkit.org/mailman/listinfo/templates
Re: [Templates] Can a template tell if it has been PROCESSed or INCLUDEd?
On 25/09/2014 18:35, Andy Lester wrote:
The point of the check is for a template that knows that it must be
invoked via INCLUDE to complain if it's been invoked with PROCESS.
Something else that came to mind while I was out walking the dog...
If you don't mind subclassing Template::Context then you could put your
own wrapper methods around include() and process() to set a stash variable.
package Your::Template::Context;
use base 'Template::Context';
sub include {
my ($self, $template, $params) = @_;
$self->stash->set( tt_call => 'INCLUDE' );
# don't be tempted to call $self->SUPER::include()
# because that's a wrapper around process()
return $self->SUPER::process($template, $params, 1);
}
sub process {
my $self = shift;
$self->stash->set( tt_call => 'PROCESS' );
return $self->SUPER::process(@_);
}
Engage it like so:
use Template;
use Your::Template::Context;
$Template::Config::CONTEXT = 'Your::Template::Context';
Then [% tt_call %] will be set to 'INCLUDE' or 'PROCESS' depending on
how the template was called.
Note that the WRAPPER directive calls the include() method (and thus is
"safe" for your purposes) so tt_call will be set to 'INCLUDE' in that case.
Cheers
Andy
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Re: [Templates] Can a template tell if it has been PROCESSed or INCLUDEd?
On Sep 25, 2014, at 12:17 PM, Kiss Gabor (Bitman) wrote: > Just define a global variable in the outermost file: > [% SET processed = 1 %] > In the included file you will see this scalar unintialized. The point of the check is for a template that knows that it must be invoked via INCLUDE to complain if it's been invoked with PROCESS. I can't have it rely on being invoked in a certain way by the programmer because I want to check for incorrect invocations. However, that does give me an idea. Perhaps if I look for an app-wide global variable that should always exist, and it's not there, then I've been INCLUDEd correctly. -- Andy Lester => www.petdance.com ___ templates mailing list templates@template-toolkit.org http://mail.template-toolkit.org/mailman/listinfo/templates
Re: [Templates] Can a template tell if it has been PROCESSed or INCLUDEd?
> Any suggestions? Just define a global variable in the outermost file: [% SET processed = 1 %] In the included file you will see this scalar unintialized. (This version is not perfect because cannot detect INCLUDE+PROCESS chains. but you can develop is necessary. :-) Gabor ___ templates mailing list templates@template-toolkit.org http://mail.template-toolkit.org/mailman/listinfo/templates
Re: [Templates] Can a template tell if it has been PROCESSed or INCLUDEd?
Hi Andy Is this possible to do in TT? Nope, there's nothing I can think of that will allow you to determine that from within the template. One work-around would be to INCLUDE a local BLOCK inside the template. [% INCLUDE my_local_block %] [% BLOCK my_local_block %] [% END %] It's a bit clumsy but it does at least ensure that the template markup in the BLOCK will always be protected by an INCLUDE, even if the template is loaded by a PROCESS. Cheers Andy ___ templates mailing list templates@template-toolkit.org http://mail.template-toolkit.org/mailman/listinfo/templates
[Templates] Can a template tell if it has been PROCESSed or INCLUDEd?
I have some Template Toolkit templates that must only be invoked with INCLUDE, not PROCESS, because they set variables that could have global side effects, and INCLUDE localizes the variables before handling the template. I would like to put some sort of assertion in the template that checks to see if it was called with INCLUDE and not PROCESS. In order to do that, I need to be able to tell, in the template, how the template was invoked. Is this possible to do in TT? I have looked at the "component" variable inside the template, and I see no difference between the two if a file is PROCESSed vs. INCLUDEd. Any suggestions? Thanks, Andy -- Andy Lester => www.petdance.com ___ templates mailing list templates@template-toolkit.org http://mail.template-toolkit.org/mailman/listinfo/templates
