C4/ClassSortRoutine/LCC.pm

   1 package C4::ClassSortRoutine::LCC;
   2
   3 # Copyright (C) 2007 LibLime
   4 # Copyright (C) 2012 Equinox Software, Inc.
   5 #
   6 # This file is part of Koha.
   7 #
   8 # Koha is free software; you can redistribute it and/or modify it
   9 # under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # Koha is distributed in the hope that it will be useful, but
  14 # WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  20
  21 use strict;
  22 use warnings;
  23 use Library::CallNumber::LC;
  24
  25
  26
  27 =head1 NAME
  28
  29 C4::ClassSortRoutine::LCC - generic call number sorting key routine
  30
  31 =head1 SYNOPSIS
  32
  33 use C4::ClassSortRoutine;
  34
  35 my $cn_sort = GetClassSortKey('LCC', $cn_class, $cn_item);
  36
  37 =head1 FUNCTIONS
  38
  39 =head2 get_class_sort_key
  40
  41   my $cn_sort = C4::ClassSortRoutine::LCC::LCC($cn_class, $cn_item);
  42
  43 Generates sorting key for LC call numbers.
  44
  45 =cut
  46
  47 sub get_class_sort_key {
  48     my ($cn_class, $cn_item) = @_;
  49
  50     $cn_class = '' unless defined $cn_class;
  51     $cn_item  = '' unless defined $cn_item;
  52     my $call_number = Library::CallNumber::LC->new(uc "$cn_class $cn_item");
  53     return '' unless defined $call_number;
  54     my $key = $call_number->normalize();
  55     $key = '' unless defined $key;
  56     return $key;
  57
  58 }
  59
  60 1;
  61
  62 =head1 AUTHOR
  63
  64 Koha Development Team <http://koha-community.org/>
  65
  66 =cut
  67