Koha/opac/opac-browser.pl
Galen Charlton ace9aa7248 bug 1448: improve subject classification browser
* turn on warnings
* fix problem where the top level of the classification
  hiearchy wasn't displayed, instead pointing to
  the link to the Wiki page with instructions on
  how to set up the feature.
* fix XHTML validation errors

Signed-off-by: Galen Charlton <galen.charlton@liblime.com>
2009-05-15 15:52:28 -05:00

104 lines
2.9 KiB
Perl
Executable file

#!/usr/bin/perl
# Copyright 2000-2002 Katipo Communications
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
=head1 opac-browser.pl
TODO :: Description here
=cut
use strict;
use warnings;
use C4::Auth;
use C4::Context;
use C4::Output;
use CGI;
use C4::Biblio;
use C4::Koha; # use getitemtypeinfo
my $query = new CGI;
my $dbh = C4::Context->dbh;
# open template
my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
{
template_name => "opac-browser.tmpl",
query => $query,
type => "opac",
authnotrequired => 1,
debug => 1,
}
);
# the level of browser to display
my $level = $query->param('level') || 0;
my $filter = $query->param('filter');
$filter = '' unless defined $filter;
$level++; # the level passed is the level of the PREVIOUS list, not the current one. Thus the ++
# build this level loop
my $sth = $dbh->prepare("SELECT * FROM browser WHERE level=? and classification like ? ORDER BY classification");
$sth->execute($level,$filter."%");
my @level_loop;
my $i=0;
while (my $line = $sth->fetchrow_hashref) {
$line->{description} =~ s/\((.*)\)//g;
push @level_loop,$line;
}
my $have_hierarchy = 0;
# now rebuild hierarchy loop
$filter =~ s/\.//g;
my @hierarchy_loop;
if ($filter eq '' and $level == 1) {
# we're starting from the top
$have_hierarchy = 1 if @level_loop;
unless (@level_loop) {
$sth->execute(1, "%");
while (my $line = $sth->fetchrow_hashref) {
$line->{description} =~ s/\((.*)\)//g;
push @level_loop,$line;
}
}
} else {
$sth = $dbh->prepare("SELECT * FROM browser where classification=?");
for (my $i=1;$i <=length($filter);$i++) {
$sth->execute(substr($filter,0,$i));
my $line = $sth->fetchrow_hashref;
push @hierarchy_loop,$line;
}
$have_hierarchy = 1 if @hierarchy_loop;
}
# mark every third entry in level_loop
for (my $i = 0; $i <= $#level_loop; $i++) {
$level_loop[$i]->{count3} = 1 if 2 == $i % 3 && $i != $#level_loop;
}
$template->param(
LEVEL_LOOP => \@level_loop,
HIERARCHY_LOOP => \@hierarchy_loop,
have_hierarchy => $have_hierarchy,
);
output_html_with_http_headers $query, $cookie, $template->output;