Koha/C4/Circulation/Date.pm

134 lines
3.1 KiB
Perl

#!/usr/bin/perl -w
package C4::Circulation::Date;
# $id:
# Copyright 2005 Katipo Communications
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
use strict;
use C4::Context;
require Exporter;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
$VERSION = do { my @v = '$Revision$' =~ /\d+/g;
shift(@v) . "." . join( "_", map { sprintf "%03d", $_ } @v );
};
@ISA = qw(Exporter);
@EXPORT = qw(
&display_date_format
&format_date
&format_date_in_iso
);
=head1 DESCRIPTION
C4::Circulation::Date provides routines for format dates to display in human readable forms.
=head1 FUNCTIONS
=over 2
=cut
=head2 get_date_format
$dateformat = get_date_format();
Takes no input, and returns the format that the library prefers dates displayed in
=cut
sub get_date_format {
# Get the database handle
my $dbh = C4::Context->dbh;
return C4::Context->preference('dateformat');
}
=head2 display_date_format
$displaydateformat = display_date_format();
Takes no input, and returns a string showing the format the library likes dates displayed in
=cut
sub display_date_format {
my $dateformat = get_date_format();
if ( $dateformat eq "us" ) {
return "mm/dd/yyyy";
}
elsif ( $dateformat eq "metric" ) {
return "dd/mm/yyyy";
}
elsif ( $dateformat eq "iso" ) {
return "yyyy-mm-dd";
}
else {
return
"Invalid date format: $dateformat. Please change in system preferences";
}
}
=head2 format_date
$formatteddate = format_date($date);
Takes a date, from mysql and returns it in the format specified by the library
This is less flexible than C4::Date::format_date, which can handle dates of many formats
if you need that flexibility use C4::Date, if you are just using it to format the output from mysql as
in circulation.pl use this one, it is much faster.
=cut
sub format_date {
my $olddate = shift;
my $newdate;
if ( !$olddate ) {
return "";
}
my $dateformat = get_date_format();
if ( $dateformat eq "us" ) {
my @datearray=split('-',$olddate);
$newdate = "$datearray[1]/$datearray[2]/$datearray[0]";
}
elsif ( $dateformat eq "metric" ) {
my @datearray=split('-',$olddate);
$newdate = "$datearray[2]/$datearray[1]/$datearray[0]";
}
elsif ( $dateformat eq "iso" ) {
$newdate = $olddate;
}
else {
return
"Invalid date format: $dateformat. Please change in system preferences";
}
}
1;