--- /dev/null
+#!/usr/bin/perl
+
+# Copyright 2010 BibLibre SARL
+#
+# 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
+
+use strict;
+use warnings;
+use C4::Auth;
+use CGI;
+use C4::Context;
+
+=head1
+
+Is used for callnumber computation.
+
+If the user send an empty string, we return a simple incremented callnumber.
+If a prefix is submited, we look for the highest callnumber with this prefix, and return it incremented.
+In this case, a callnumber has this form : "PREFIX 0009678570".
+ - PREFIX is an upercase word
+ - a space separator
+ - 10 digits, with leading 0s if needed
+
+=cut
+
+sub plugin_parameters {
+}
+
+sub plugin_javascript {
+ my ($dbh,$record,$tagslib,$field_number,$tabloop) = @_;
+ my $res="
+ <script type='text/javascript'>
+ function Focus$field_number() {
+ return 1;
+ }
+
+ function Blur$field_number() {
+ var code = document.getElementById('$field_number');
+ var url = '../cataloguing/plugin_launcher.pl?plugin_name=callnumber.pl&code=' + code.value;
+ var blurcallbackcallnumber = {
+ success: function(o) {
+ var field = document.getElementById('$field_number');
+ field.value = o.responseText;
+ return 1;
+ }
+ }
+ var transaction = YAHOO.util.Connect.asyncRequest('GET',url, blurcallbackcallnumber, null);
+ return 1;
+ }
+
+ function Clic$field_number() {
+ return 1;
+ }
+ </script>
+ ";
+
+ return ($field_number,$res);
+}
+
+sub plugin {
+ my ($input) = @_;
+ my $code = $input->param('code');
+
+ my ($template, $loggedinuser, $cookie) = get_template_and_user({
+ template_name => "cataloguing/value_builder/ajax.tmpl",
+ query => $input,
+ type => "intranet",
+ authnotrequired => 0,
+ flagsrequired => {editcatalogue => '*'},
+ debug => 1,
+ });
+
+ my $dbh = C4::Context->dbh;
+ # If the textbox is empty, we return a simple incremented callnumber
+ if ( $code eq "" ) {
+ my $sth = $dbh->prepare("SELECT MAX(CAST(itemcallnumber AS SIGNED)) FROM items");
+ $sth->execute;
+
+ if ( my $max = $sth->fetchrow ) {
+ $template->param(
+ return => $max+1,
+ );
+ }
+ # If a prefix is submited, we look for the highest itemcallnumber with this prefix, and return it incremented
+ } elsif ( $code =~ m/^[A-Z]+$/ ) {
+ my $sth = $dbh->prepare("SELECT MAX(CAST(SUBSTRING_INDEX(itemcallnumber,' ',-1) AS SIGNED)) FROM items WHERE itemcallnumber LIKE ?");
+ $sth->execute($code.' %');
+ if ( my $max = $sth->fetchrow ) {
+ $template->param(
+ return => $code.' '.($max+1)
+ );
+ }
+ # The user entered a custom value, we don't touch it, this could be handled in js
+ } else {
+ $template->param(
+ return => $code,
+ );
+ }
+ output_html_with_http_headers $input, $cookie, $template->output;
+}
+
+1;