100 lines
3 KiB
Perl
100 lines
3 KiB
Perl
package WebGUI::Asset::Template::TemplateToolkit;
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=head1 LEGAL
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-------------------------------------------------------------------
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WebGUI is Copyright 2001-2009 Plain Black Corporation.
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-------------------------------------------------------------------
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Please read the legal notices (docs/legal.txt) and the license
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(docs/license.txt) that came with this distribution before using
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this software.
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-------------------------------------------------------------------
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http://www.plainblack.com info@plainblack.com
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-------------------------------------------------------------------
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=cut
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use strict;
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use base 'WebGUI::Asset::Template::Parser';
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use Template;
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#-------------------------------------------------------------------
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sub _rewriteVars { # replace dots with underscrores in keys (except in keys that aren't usable as variables (URLs etc.))
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my $vars = shift;
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my $newVars = {};
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foreach my $key (keys %$vars){
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my $newKey = $key;
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$newKey =~ s/\./_/g if $newKey !~ /\//;
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if ( ref $vars->{$key} eq 'ARRAY') {
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foreach my $entry (@{$vars->{$key}}) {
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push(@{$newVars->{$newKey}}, _rewriteVars($entry));
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}
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} elsif(ref $vars->{$key} eq 'HASH') {
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$newVars->{$newKey} = _rewriteVars($vars->{$key});
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} else {
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$newVars->{$newKey} = $vars->{$key};
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}
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}
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return $newVars;
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}
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#-------------------------------------------------------------------
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=head2 getName ( )
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Returns the human readable name of this parser.
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=cut
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sub getName {
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my $self = shift;
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return "Template Toolkit";
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}
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#-------------------------------------------------------------------
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=head2 process ( template, vars )
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Evaluate a template replacing template commands for HTML.
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=head3 template
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A scalar variable containing the template.
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=head3 vars
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A hash reference containing template variables and loops.
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=cut
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# TODO: Have this throw an error so we can catch it and print more information
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# about the template that has the error. Finding an "ERROR: Error in template"
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# in the error log is not very helpful...
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sub process {
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my $self = shift;
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my $template = shift;
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my $vars = $self->addSessionVars(shift);
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my ($t,$output);
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eval {
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$t = Template->new({
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INTERPOLATE => 1, # expand "$var" in plain text
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POST_CHOMP => 1, # cleanup whitespace
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EVAL_PERL => 0, # evaluate Perl code blocks
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});
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$vars = _rewriteVars($vars);
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# store the session so plugins can access it.
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# underscore prefix prevents direct access from templates
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$vars->{_session} = $self->session;
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unless ($t->process( \$template, $vars,\$output)) {
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my $e = $t->error;
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$self->session->log->error($e);
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die $e;
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}
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};
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if ($@) {
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WebGUI::Error::Template->throw( error => $@ );
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}
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return $output;
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}
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1;
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