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.,
17 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 use DateTime::Format::DateParse;
27 use version; our $VERSION = qv('1.0.0');
30 qw( dt_from_string output_pref format_sqldatetime )
35 Koha::DateUtils - Transitional wrappers to ease use of DateTime
39 Koha has historically only used dates not datetimes and been content to
40 handle these as strings. It also has confused formatting with actual dates
41 this is a temporary module for wrappers to hide the complexity of switch to DateTime
47 $dt = dt_from_string($date_string, [$format, $timezone ]);
49 Passed a date string returns a DateTime object format and timezone default
50 to the system preferences. If the date string is empty DateTime->now is returned
55 my ( $date_string, $date_format, $tz ) = @_;
57 # FIXME: see bug 13242 => no TZ for dates 'infinite'
58 return DateTime::Format::DateParse->parse_datetime($date_string)
59 if $date_string and $date_string =~ /^9999-/;
62 $tz = C4::Context->tz;
64 if ( !$date_format ) {
65 $date_format = C4::Context->preference('dateformat');
68 if ( ref($date_string) eq 'DateTime' ) { # already a dt return it
72 if ( $date_format eq 'metric' ) {
73 $date_string =~ s#-#/#g;
74 $date_string =~ s/^00/01/; # system allows the 0th of the month
75 $date_string =~ s#^(\d{1,2})/(\d{1,2})#$2/$1#;
77 if ( $date_format eq 'iso' ) {
78 $date_string =~ s/-00/-01/;
79 if ( $date_string =~ m/^0000-0/ ) {
80 return; # invalid date in db
82 } elsif ( $date_format eq 'us' ) {
83 $date_string =~ s#-#/#g;
84 $date_string =~ s[/00/][/01/];
85 } elsif ( $date_format eq 'sql' ) {
87 s/(\d{4})(\d{2})(\d{2})\s+(\d{2})(\d{2})(\d{2})/$1-$2-$3T$4:$5:$6/;
88 return if ($date_string =~ /^0000-00-00/);
89 $date_string =~ s/00T/01T/;
92 return DateTime::Format::DateParse->parse_datetime( $date_string,
95 return DateTime->now( time_zone => $tz );
101 $date_string = output_pref({ dt => $dt [, dateformat => $date_format, timeformat => $time_format, dateonly => 0|1, as_due_date => 0|1 ] });
102 $date_string = output_pref( $dt );
104 Returns a string containing the time & date formatted as per the C4::Context setting,
105 or C<undef> if C<undef> was provided.
107 This routine can either be passed a DateTime object or or a hashref. If it is
108 passed a hashref, the expected keys are a mandatory 'dt' for the DateTime,
109 an optional 'dateformat' to override the dateformat system preference, an
110 optional 'timeformat' to override the TimeFormat system preference value,
111 and an optional 'dateonly' to specify that only the formatted date string
112 should be returned without the time.
118 my ( $dt, $force_pref, $force_time, $dateonly, $as_due_date );
119 if ( ref $params eq 'HASH' ) {
121 $force_pref = $params->{dateformat}; # if testing we want to override Context
122 $force_time = $params->{timeformat};
123 $dateonly = $params->{dateonly} || 0; # if you don't want the hours and minutes
124 $as_due_date = $params->{as_due_date} || 0; # don't display the hours and minutes if eq to 23:59 or 11:59 (depending the TimeFormat value)
129 return unless defined $dt;
131 # FIXME: see bug 13242 => no TZ for dates 'infinite'
132 if ( $dt->ymd !~ /^9999/ ) {
133 my $tz = $dateonly ? DateTime::TimeZone->new(name => 'floating') : C4::Context->tz;
134 $dt->set_time_zone( $tz );
138 defined $force_pref ? $force_pref : C4::Context->preference('dateformat');
140 my $time_format = $force_time || C4::Context->preference('TimeFormat') || q{};
141 my $time = ( $time_format eq '12hr' ) ? '%I:%M %p' : '%H:%M';
143 if ( $pref =~ m/^iso/ ) {
145 ? $dt->strftime("%Y-%m-%d")
146 : $dt->strftime("%Y-%m-%d $time");
148 elsif ( $pref =~ m/^metric/ ) {
150 ? $dt->strftime("%d/%m/%Y")
151 : $dt->strftime("%d/%m/%Y $time");
153 elsif ( $pref =~ m/^us/ ) {
155 ? $dt->strftime("%m/%d/%Y")
156 : $dt->strftime("%m/%d/%Y $time");
160 ? $dt->strftime("%Y-%m-%d")
161 : $dt->strftime("%Y-%m-%d $time");
164 if ( $as_due_date ) {
165 $time_format eq '12hr'
166 ? $date =~ s| 11:59 PM$||
167 : $date =~ s| 23:59$||;
173 =head2 format_sqldatetime
175 $string = format_sqldatetime( $string_as_returned_from_db );
177 a convenience routine for calling dt_from_string and formatting the result
178 with output_pref as it is a frequent activity in scripts
182 sub format_sqldatetime {
184 my $force_pref = shift; # if testing we want to override Context
185 my $force_time = shift;
186 my $dateonly = shift;
188 if ( defined $str && $str =~ m/^\d{4}-\d{2}-\d{2}/ ) {
189 my $dt = dt_from_string( $str, 'sql' );
190 return q{} unless $dt;
191 $dt->truncate( to => 'minute' );
194 dateformat => $force_pref,
195 timeformat => $force_time,
196 dateonly => $dateonly