NAME

OpenFrame::WebApp::Template - abstract class for template processing wrappers

SYNOPSIS

  # abstract class - does nothing on its own
  use OpenFrame::WebApp::Template::SomeClass;

  my $tmpl = new OpenFrame::WebApp::Template::SomeClass()
    ->file( $local_path )
    ->template_vars( { some => vars } );

  try {
      $ofResponse = $tmpl->process;
  } catch OpenFrame::WebApp::Template::Error with {
      my $e = shift;
      print $e->flag, $e->message;
  }

DESCRIPTION

The OpenFrame::WebApp::Template class is an abstract wrapper around a template system like Template::Toolkit, HTML::Template, Petal, etc.

This class was meant to be used with OpenFrame::WebApp::Template::Factory.

METHODS

types: set/get the hash of $template_types => $class_names known to this class.
processor(): set/get the template processor (ie: tt2 instance).
file(): set/get local path to template file.
template_vars(): set/get hash of template processing variables.
process(): process the template file with the template processing variables, and produce an OpenFrame::Response with the result. throws an OpenFrame::WebApp::Template::Error if there was a problem.

SUB-CLASSING

Read through the source of this package and the known sub-classes first. The minumum you need to do is this:

  use base qw( OpenFrame::WebApp::Template );

  OpenFrame::WebApp::Template->types->{my_type} = __PACKAGE__;

  sub default_processor {
      return new Some::Template::Processor();
  }

  sub process_template {
      ...
      throw OpenFrame::WebApp::Template::Error( ... ) if ($error);
      return $output;
  }

You must register your template type if you want to use the Template::Factory.

AUTHOR

Steve Purkis <spurkis@epn.nu>

Inspired by OpenFrame::AppKit::Segment::TT2 by James A. Duncan.