3 # Copyright 2012 CatalystIT Ltd
5 # This file is part of Koha.
7 # Koha is free software; you can redistribute it and/or modify it under the
8 # terms of the GNU General Public License as published by the Free Software
9 # Foundation; either version 2 of the License, or (at your option) any later
12 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
13 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
14 # A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License along
17 # with Koha; if not, write to the Free Software Foundation, Inc.,
18 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 Is used for callnumber computation.
30 User must supply a letter prefix (unspecified length) followed by an empty space followed by a "number".
31 "Number" is 4 character long, and is either a number sequence which is 01 padded.
32 If input does not conform with this format any processing is omitted.
34 Some examples of legal values that trigger auto allocation:
36 AAA 0 - returns first unused number AAA 0xxx starting with AAA 0001
37 BBB 12 - returns first unused number BBB 12xx starting with BBB 1201
38 CCC QW - returns first unused number CCC QWxx starting with CCC QW01
42 sub plugin_parameters {
45 sub plugin_javascript {
46 my ($dbh,$record,$tagslib,$field_number,$tabloop) = @_;
48 <script type='text/javascript'>
49 function Focus$field_number() {
53 function Blur$field_number() {
57 function Clic$field_number() {
58 var code = document.getElementById('$field_number');
59 var url = '../cataloguing/plugin_launcher.pl?plugin_name=callnumber-KU.pl&code=' + code.value;
60 var blurcallbackcallnumber = {
61 success: function(o) {
62 var field = document.getElementById('$field_number');
63 field.value = o.responseText;
67 var transaction = YAHOO.util.Connect.asyncRequest('GET',url, blurcallbackcallnumber, null);
73 return ($field_number,$res);
76 my $BASE_CALLNUMBER_RE = qr/^(\w+) (\w+)$/;
79 my $code = $input->param('code');
81 my ($template, $loggedinuser, $cookie) = get_template_and_user({
82 template_name => "cataloguing/value_builder/ajax.tmpl",
86 flagsrequired => {editcatalogue => '*'},
91 my ($alpha, $num) = ($code =~ $BASE_CALLNUMBER_RE);
92 if (defined $num) { # otherwise no point
93 my ($num_alpha, $num_num) = ($num =~ m/^(\D+)?(\d+)?$/);
95 my $pad_len = 4 - length($num);
98 my $num_padded = $num_num;
99 $num_padded .= "0" x ($pad_len - 1) if $pad_len > 1;
101 my $padded = "$alpha $num_alpha" . $num_padded;
103 my $dbh = C4::Context->dbh;
104 if ( my $first = $dbh->selectrow_array("SELECT itemcallnumber
106 WHERE itemcallnumber = ?", undef, $padded) ) {
107 my $icn = $dbh->selectcol_arrayref("SELECT DISTINCT itemcallnumber
109 WHERE itemcallnumber LIKE ?
110 AND itemcallnumber > ?
111 ORDER BY itemcallnumber", undef, "$alpha $num_alpha%", $first);
112 my $next = $num_padded + 1;
113 my $len = length($num_padded);
115 my ($num1) = ( m/(\d+)$/o );
116 if ($num1 > $next) { # a hole in numbering found, stop
121 $ret = "$alpha $num_alpha" . sprintf("%0${len}d", $next) if length($next) <= $len; # no overflow
130 return => $ret || $code
132 output_html_with_http_headers $input, $cookie, $template->output;