---
name: "CGI::Application::Plugin::TT::LastModified"
section: "3pm"
platform: "linux"
package: "libcgi-application-plugin-tt-perl"
version: "1.06+~cs1.3-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/CGI::Application::Plugin::TT::LastModified"
---

# CGI::Application::Plugin::TT::LastModified(3pm)

Set "Last-Modified" header based on TT template

## NAME

CGI::Application::Plugin::TT::LastModified - Set "Last-Modified" header based on TT template

## SYNOPSIS

```
  # when you want to set the "Last-Modified" header manually
    use base qw(CGI::Application);
    use CGI::Application::Plugin::TT;
    use CGI::Application::Plugin::TT::LastModified;
    sub my_runmode {
        my $self = shift;
        my %params = (
            # ...
            );
        my $html = $self->tt_process( 'template.html', \%params );
        $self->tt_set_last_modified_header();
        return $html;
    }
  # when you want the "Last-Modified" header set automatically
    use base qw(CGI::Application);
    use CGI::Application::Plugin::TT;
    use CGI::Application::Plugin::TT::LastModified qw(:auto);
    sub my_runmode {
        my $self = shift;
        my %params = (
            # ...
            );
        return $self->tt_process( 'template.html', \%params );
    }
```

## DESCRIPTION

`"CGI::Application::Plugin::TT::LastModified"` adds support to `"CGI::Application"` for setting a "Last-Modified" header based on the most recent modification time of *any* of the components of a template that was processed with TT.

Normally you'll want to call it manually, on as "as needed" basis; if you're processing templates with TT you're most likely dealing with dynamic content (in which case you probably don't even want a "Last-Modified" header).  The odd time you'll want to set a "Last-Modified" header, though, this plugin helps make that easier.

**If** you have a desire to have the "Last-Modified" header set automatically for you, though, `"CGI::Application::Plugin::TT::LastModified"` does have an `":auto"` import tag which auto-registers "**tt\_set\_last\_modified\_header()**" as a "tt\_post\_process" hook for you.  If you've got an app that just processes static TT pages and generates output, this will be useful for you.

## METHODS

- **import()**

  Custom import routine, which allows for `tt_set_last_modified_header()` to be auto-added in as a TT post process hook.

- **tt\_last\_modified()**

  Returns the most recent modification time for any component of the most recently processed template (via `tt_process()`). Time is returned back to the caller as "the number of seconds since the epoch".

- **tt\_set\_last\_modified\_header()**

  Sets a "Last-Modified" header in the HTTP response, equivalent to the last modification time of the template components as returned by `tt_last_modified()`.

## AUTHOR

Graham TerMarsch (cpan@howlingfrog.com)

## COPYRIGHT

Copyright (C) 2007, Graham TerMarsch.  All Rights Reserved.

This is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

## SEE ALSO

- CGI::Application::Plugin::TT

  - CGI::Application

  - Template