160 lines
3.7 KiB
Perl
160 lines
3.7 KiB
Perl
#!/usr/bin/perl
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# Copyright 2000-2002 Katipo Communications
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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 with
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# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
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# Suite 330, Boston, MA 02111-1307 USA
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# $Id$
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package C4::Date;
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use strict;
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use C4::Context;
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use Date::Manip;
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require Exporter;
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use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
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$VERSION = do { my @v = '$Revision$' =~ /\d+/g; shift(@v) . "." . join( "_", map { sprintf "%03d", $_ } @v ); };
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@ISA = qw(Exporter);
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@EXPORT = qw(
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&display_date_format
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&format_date
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&format_date_in_iso
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&get_date_format_string_for_DHTMLcalendar
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&Date_diff
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);
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sub get_date_format {
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#Get the database handle
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my $dbh = C4::Context->dbh;
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return C4::Context->preference('dateformat');
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}
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sub display_date_format {
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my $dateformat = get_date_format();
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if ( $dateformat eq "us" ) {
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return "mm/dd/yyyy";
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}
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elsif ( $dateformat eq "metric" ) {
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return "dd/mm/yyyy";
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}
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elsif ( $dateformat eq "iso" ) {
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return "yyyy-mm-dd";
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}
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else {
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return
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"Invalid date format: $dateformat. Please change in system preferences";
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}
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}
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sub get_date_format_string_for_DHTMLcalendar {
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my $dateformat = get_date_format();
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if ( $dateformat eq 'us' ) {
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return '%m/%d/%Y';
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}
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elsif ( $dateformat eq 'metric' ) {
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return '%d/%m/%Y';
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}
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elsif ( $dateformat eq "iso" ) {
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return '%Y-%m-%d';
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}
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else {
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return 'Invalid date format: '
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. $dateformat . '.'
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. ' Please change in system preferences';
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}
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}
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sub format_date {
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my $olddate = shift;
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my $newdate;
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if ( !$olddate ) {
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return "";
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}
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my $dateformat = get_date_format();
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if ( $dateformat eq "us" ) {
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Date_Init("DateFormat=US");
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$olddate = ParseDate($olddate);
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$newdate = UnixDate( $olddate, '%m/%d/%Y' );
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}
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elsif ( $dateformat eq "metric" ) {
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Date_Init("DateFormat=metric");
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$olddate = ParseDate($olddate);
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$newdate = UnixDate( $olddate, '%d/%m/%Y' );
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}
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elsif ( $dateformat eq "iso" ) {
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Date_Init("DateFormat=iso");
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$olddate = ParseDate($olddate);
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$newdate = UnixDate( $olddate, '%Y-%m-%d' );
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}
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else {
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return
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"Invalid date format: $dateformat. Please change in system preferences";
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}
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}
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sub format_date_in_iso {
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my $olddate = shift;
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my $newdate;
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if ( !$olddate ) {
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return "";
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}
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my $dateformat = get_date_format();
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if ( $dateformat eq "us" ) {
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Date_Init("DateFormat=US");
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$olddate = ParseDate($olddate);
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}
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elsif ( $dateformat eq "metric" ) {
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Date_Init("DateFormat=metric");
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$olddate = ParseDate($olddate);
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}
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elsif ( $dateformat eq "iso" ) {
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Date_Init("DateFormat=iso");
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$olddate = ParseDate($olddate);
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}
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else {
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return "9999-99-99";
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}
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$newdate = UnixDate( $olddate, '%Y-%m-%d' );
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return $newdate;
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}
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sub DATE_diff {
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my ($date1,$date2)=@_;
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my $dbh=C4::Context->dbh;
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my $sth = $dbh->prepare("SELECT DATEDIFF(?,?)");
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$sth->execute($date1,$date2);
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my $difference = $sth->fetchrow;
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$sth->finish;
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return $difference;
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}
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1;
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