path: root/LedgerSMB/Template/CSV.pm

=head1 NAME

LedgerSMB::Template::CSV  Template support module for LedgerSMB

=head1 METHODS

=over

=item get_template ($name)

Returns the appropriate template filename for this format.

=item preprocess ($vars)

Returns $vars.

=item process ($parent, $cleanvars)

Processes the template for text.

=item postprocess ($parent)

Returns the output filename.

=back

=head1 Copyright (C) 2007, The LedgerSMB core team.

This work contains copyrighted information from a number of sources all used
with permission.  

It is released under the GNU General Public License Version 2 or, at your 
option, any later version.  See COPYRIGHT file for details.  For a full list 
including contact information of contributors, maintainers, and copyright 
holders, see the CONTRIBUTORS file.
=cut

package LedgerSMB::Template::CSV;

use Error qw(:try);
use Template;
use LedgerSMB::Template::TTI18N;

sub get_template {
    my $name = shift;
    return "${name}.csv";
}

sub preprocess {
    my $rawvars = shift;
    my $vars;
    my $type = ref $rawvars;

    #XXX fix escaping function
    return $rawvars if $type =~ /^LedgerSMB::Locale/;
    if ( $type eq 'ARRAY' ) {
        for (@{$rawvars}) {
            push @{$vars}, preprocess( $_ );
        }
    } elsif ( !$type ) { # Scalar
        $vars = $rawvars;
        $vars =~ s/(^ +| +$)//g;
        $vars =~ s/"/""/g;
        $vars = qq|"$vars"| if $vars !~ /^\w*$/;
    } else { # hashes and objects
        for ( keys %{$rawvars} ) {
            $vars->{preprocess($_)} = preprocess( $rawvars->{$_} );
        }
    }
    return $vars;
}

sub process {
    my $parent = shift;
    my $cleanvars = shift;
    my $template;
    my $source;
    my $output;

    if ($parent->{outputfile}) {
        $output = "$parent->{outputfile}.csv";
    } else {
        $output = \$parent->{output};
    }
    if (ref $parent->{template} eq 'SCALAR') {
        $source = $parent->{template};
    } elsif (ref $parent->{template} eq 'ARRAY') {
        $source = join "\n", @{$parent->{template}};
    } else {
        $source = get_template($parent->{template});
    }
    $template = Template->new({
        INCLUDE_PATH => $parent->{include_path},
        START_TAG => quotemeta('<?lsmb'),
        END_TAG => quotemeta('?>'),
        DELIMITER => ';',
        DEBUG => ($parent->{debug})? 'dirs': undef,
        DEBUG_FORMAT => '',
        }) || throw Error::Simple Template->error(); 

    if (not $template->process(
        $source, 
        {%$cleanvars, %$LedgerSMB::Template::TTI18N::ttfuncs,
            'escape' => \&preprocess},
        $output, binmode => ':utf8')) {
        throw Error::Simple $template->error();
    }
    $parent->{mimetype} = 'text/csv';
}

sub postprocess {
    my $parent = shift;
    $parent->{rendered} = "$parent->{outputfile}.csv" if $parent->{outputfile};
    return $parent->{rendered};
}

1;