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#!/usr/bin/perl |
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# Copyright 2012 CatalystIT Ltd |
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# |
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# This file is part of Koha. |
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# |
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# Koha is free software; you can redistribute it and/or modify it under the |
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# terms of the GNU General Public License as published by the Free Software |
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# Foundation; either version 2 of the License, or (at your option) any later |
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# version. |
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# |
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# Koha is distributed in the hope that it will be useful, but WITHOUT ANY |
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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# A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License along |
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# with Koha; if not, write to the Free Software Foundation, Inc., |
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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use strict; |
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use warnings; |
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use C4::Auth; |
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use CGI; |
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use C4::Context; |
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=head1 DESCRIPTION |
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|
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Is used for callnumber computation. |
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User must supply a letter prefix (unspecified length) followed by an empty space followed by a "number". |
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"Number" is 4 character long, and is either a number sequence which is 0 padded |
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or two letters which are 01 padded. |
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If input does not conform with this format any processing is omitted. |
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Some examples of legal values that trigger auto allocation: |
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AAA 0 - returns first unused number AAA 0xxx starting with AAA 0000 |
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BBB 12 - returns first unused number BBB 12xx starting with BBB 1200 |
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CCC QW - returns first unused number CCC QWxx starting with CCC QW01 |
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|
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=cut |
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|
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sub plugin_parameters { |
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} |
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sub plugin_javascript { |
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my ($dbh,$record,$tagslib,$field_number,$tabloop) = @_; |
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my $res=" |
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<script type='text/javascript'> |
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function Focus$field_number() { |
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return 1; |
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} |
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function Blur$field_number() { |
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return 1; |
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} |
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function Clic$field_number() { |
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var code = document.getElementById('$field_number'); |
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var url = '../cataloguing/plugin_launcher.pl?plugin_name=callnumber-KU.pl&code=' + code.value; |
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var blurcallbackcallnumber = { |
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success: function(o) { |
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var field = document.getElementById('$field_number'); |
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field.value = o.responseText; |
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return 1; |
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} |
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} |
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var transaction = YAHOO.util.Connect.asyncRequest('GET',url, blurcallbackcallnumber, null); |
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return 1; |
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} |
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</script> |
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"; |
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return ($field_number,$res); |
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} |
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my $BASE_CALLNUMBER_RE = qr/^(\w+) (\w+)$/; |
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sub plugin { |
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my ($input) = @_; |
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my $code = $input->param('code'); |
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my ($template, $loggedinuser, $cookie) = get_template_and_user({ |
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template_name => "cataloguing/value_builder/ajax.tmpl", |
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query => $input, |
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type => "intranet", |
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authnotrequired => 0, |
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flagsrequired => {editcatalogue => '*'}, |
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debug => 1, |
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}); |
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my $ret; |
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my ($alpha, $num) = ($code =~ $BASE_CALLNUMBER_RE); |
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if (defined $num) { # otherwise no point |
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my ($num_alpha, $num_num) = ($num =~ m/^(\D+)?(\d+)?$/); |
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$num_alpha ||= ''; |
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my $pad_len = 4 - length($num); |
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if ($pad_len > 0) { |
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my $num_padded = $num_num; |
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if ($num_alpha) { |
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$num_padded .= "0" x ($pad_len - 1) if $pad_len > 1; |
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$num_padded .= "1"; |
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} else { |
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$num_padded .= "0" x $pad_len; |
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} |
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my $padded = "$alpha $num_alpha" . $num_padded; |
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my $dbh = C4::Context->dbh; |
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if ( my $first = $dbh->selectrow_array("SELECT itemcallnumber |
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FROM items |
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WHERE itemcallnumber = ?", undef, $padded) ) { |
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my $icn = $dbh->selectcol_arrayref("SELECT itemcallnumber |
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FROM items |
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WHERE itemcallnumber LIKE ? |
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AND itemcallnumber > ? |
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ORDER BY itemcallnumber", undef, "$alpha $num_alpha%", $first); |
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my $next = $num_padded + 1; |
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my $len = length($num_padded); |
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foreach (@$icn) { |
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my ($num1) = ( m/(\d+)$/o ); |
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if ($num1 > $next) { # a hole in numbering found, stop |
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last; |
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} |
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$next++; |
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} |
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$ret = "$alpha $num_alpha" . sprintf("%0${len}d", $next) if length($next) <= $len; # no overflow |
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} |
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else { |
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$ret = $padded; |
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} |
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} |
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} |
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$template->param( |
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return => $ret || $code |
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); |
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output_html_with_http_headers $input, $cookie, $template->output; |
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} |
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1; |