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.
26 use version; our $VERSION = qv('1.0.0');
29 qw( dt_from_string output_pref format_sqldatetime )
34 Koha::DateUtils - Transitional wrappers to ease use of DateTime
38 Koha has historically only used dates not datetimes and been content to
39 handle these as strings. It also has confused formatting with actual dates
40 this is a temporary module for wrappers to hide the complexity of switch to DateTime
46 $dt = dt_from_string($date_string, [$format, $timezone ]);
48 Passed a date string returns a DateTime object format and timezone default
49 to the system preferences. If the date string is empty DateTime->now is returned
54 my ( $date_string, $date_format, $tz ) = @_;
56 return if $date_string and $date_string =~ m|^0000-0|;
58 $tz = C4::Context->tz unless $tz;;
60 return DateTime->now( time_zone => $tz ) unless $date_string;
62 $date_format = C4::Context->preference('dateformat') unless $date_format;
64 if ( ref($date_string) eq 'DateTime' ) { # already a dt return it
70 # The fallback format is sql/iso
79 if ( $date_format eq 'metric' ) {
80 # metric format is "dd/mm/yyyy[ hh:mm:ss]"
89 elsif ( $date_format eq 'us' ) {
90 # us format is "mm/dd/yyyy[ hh:mm:ss]"
99 elsif ( $date_format eq 'iso' or $date_format eq 'sql' ) {
100 # iso or sql format are yyyy-dd-mm[ hh:mm:ss]"
101 $regex = $fallback_re;
104 die "Invalid dateformat parameter ($date_format)";
107 # Add the faculative time part [hh:mm[:ss]]
122 if ( $date_string =~ $regex ) {
128 minute => $+{minute},
129 second => $+{second},
131 } elsif ( $date_string =~ $fallback_re ) {
137 minute => $+{minute},
138 second => $+{second},
142 die "The given date ($date_string) does not match the date format ($date_format)";
145 # system allows the 0th of the month
146 $dt_params{day} = '01' if $dt_params{day} eq '00';
148 # Set default hh:mm:ss to 00:00:00
149 $dt_params{hour} = 00 unless defined $dt_params{hour};
150 $dt_params{minute} = 00 unless defined $dt_params{minute};
151 $dt_params{second} = 00 unless defined $dt_params{second};
156 # No TZ for dates 'infinite' => see bug 13242
157 ( $dt_params{year} < 9999 ? ( time_zone => $tz->name ) : () ),
161 $tz = DateTime::TimeZone->new( name => 'floating' );
164 # No TZ for dates 'infinite' => see bug 13242
165 ( $dt_params{year} < 9999 ? ( time_zone => $tz->name ) : () ),
173 $date_string = output_pref({ dt => $dt [, dateformat => $date_format, timeformat => $time_format, dateonly => 0|1, as_due_date => 0|1 ] });
174 $date_string = output_pref( $dt );
176 Returns a string containing the time & date formatted as per the C4::Context setting,
177 or C<undef> if C<undef> was provided.
179 This routine can either be passed a DateTime object or or a hashref. If it is
180 passed a hashref, the expected keys are a mandatory 'dt' for the DateTime,
181 an optional 'dateformat' to override the dateformat system preference, an
182 optional 'timeformat' to override the TimeFormat system preference value,
183 and an optional 'dateonly' to specify that only the formatted date string
184 should be returned without the time.
190 my ( $dt, $force_pref, $force_time, $dateonly, $as_due_date );
191 if ( ref $params eq 'HASH' ) {
193 $force_pref = $params->{dateformat}; # if testing we want to override Context
194 $force_time = $params->{timeformat};
195 $dateonly = $params->{dateonly} || 0; # if you don't want the hours and minutes
196 $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)
201 return unless defined $dt;
203 # FIXME: see bug 13242 => no TZ for dates 'infinite'
204 if ( $dt->ymd !~ /^9999/ ) {
205 my $tz = $dateonly ? DateTime::TimeZone->new(name => 'floating') : C4::Context->tz;
206 $dt->set_time_zone( $tz );
210 defined $force_pref ? $force_pref : C4::Context->preference('dateformat');
212 my $time_format = $force_time || C4::Context->preference('TimeFormat') || q{};
213 my $time = ( $time_format eq '12hr' ) ? '%I:%M %p' : '%H:%M';
215 if ( $pref =~ m/^iso/ ) {
217 ? $dt->strftime("%Y-%m-%d")
218 : $dt->strftime("%Y-%m-%d $time");
220 elsif ( $pref =~ m/^metric/ ) {
222 ? $dt->strftime("%d/%m/%Y")
223 : $dt->strftime("%d/%m/%Y $time");
225 elsif ( $pref =~ m/^us/ ) {
227 ? $dt->strftime("%m/%d/%Y")
228 : $dt->strftime("%m/%d/%Y $time");
232 ? $dt->strftime("%Y-%m-%d")
233 : $dt->strftime("%Y-%m-%d $time");
236 if ( $as_due_date ) {
237 $time_format eq '12hr'
238 ? $date =~ s| 11:59 PM$||
239 : $date =~ s| 23:59$||;
245 =head2 format_sqldatetime
247 $string = format_sqldatetime( $string_as_returned_from_db );
249 a convenience routine for calling dt_from_string and formatting the result
250 with output_pref as it is a frequent activity in scripts
254 sub format_sqldatetime {
256 my $force_pref = shift; # if testing we want to override Context
257 my $force_time = shift;
258 my $dateonly = shift;
260 if ( defined $str && $str =~ m/^\d{4}-\d{2}-\d{2}/ ) {
261 my $dt = dt_from_string( $str, 'sql' );
262 return q{} unless $dt;
263 $dt->truncate( to => 'minute' );
266 dateformat => $force_pref,
267 timeformat => $force_time,
268 dateonly => $dateonly