1 package Koha::DateUtils;
3 # Copyright (c) 2011 PTFS-Europe Ltd.
4 # This file is part of Koha.
6 # Koha is free software; you can redistribute it and/or modify it under the
7 # terms of the GNU General Public License as published by the Free Software
8 # Foundation; either version 2 of the License, or (at your option) any later
11 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
12 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
13 # A PARTICULAR PURPOSE. See the GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License along with
16 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
17 # Suite 330, Boston, MA 02111-1307 USA
23 use DateTime::Format::DateParse;
27 use version; our $VERSION = qv('1.0.0');
29 our @EXPORT = (qw( dt_from_string output_pref));
33 Koha::DateUtils - Transitional wrappers to ease use of DateTime
37 Koha has historically only used dates not datetimes and been content to
38 handle these as strings. It also has confused formatting with actual dates
39 this is a temporary module for wrappers to hide the complexity of switch to DateTime
45 $dt = dt_from_string($date_string, [$format, $timezone ]);
47 Passed a date string returns a DateTime object format and timezone default
48 to the system preferences. If the date string is empty DateTime->now is returned
53 my ( $date_string, $date_format, $tz ) = @_;
55 $tz = C4::Context->tz;
57 if ( !$date_format ) {
58 $date_format = C4::Context->preference('dateformat');
61 if ( ref($date_string) eq 'DateTime' ) { # already a dt return it
65 if ( $date_format eq 'metric' ) {
66 $date_string =~ s#-#/#g;
67 $date_string =~ s/^00/01/; # system allows the 0th of the month
68 $date_string =~ s#^(\d{1,2})/(\d{1,2})#$2/$1#;
70 if ( $date_format eq 'iso' ) {
71 $date_string =~ s/-00/-01/;
72 if ( $date_string =~ m/^0000-00/ ) {
73 return; # invalid date in db
75 } elsif ( $date_format eq 'us' ) {
76 $date_string =~ s[-00-][-01-];
77 } elsif ( $date_format eq 'sql' ) {
79 s/(\d{4})(\d{2})(\d{2})\s+(\d{2})(\d{2})(\d{2})/$1-$2-$3T$4:$5:$6/;
80 $date_string =~ s/00T/01T/;
83 return DateTime::Format::DateParse->parse_datetime( $date_string, $tz->name() );
85 return DateTime->now( time_zone => $tz );
91 my $pref = C4::Context->preference('dateformat');
94 return $dt->strftime('%Y-%m-%d %H:%M');
97 return $dt->strftime('%d/%m/%Y %H:%M');
100 return $dt->strftime('%m/%d/%Y %H:%M');
103 return $dt->strftime('%Y-%m-%d %H:%M');