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.
25 use version; our $VERSION = qv('1.0.0');
28 qw( dt_from_string output_pref format_sqldatetime )
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 return if $date_string and $date_string =~ m|^0000-0|;
57 $tz = C4::Context->tz unless $tz;;
59 return DateTime->now( time_zone => $tz ) unless $date_string;
61 $date_format = C4::Context->preference('dateformat') unless $date_format;
63 if ( ref($date_string) eq 'DateTime' ) { # already a dt return it
69 # The fallback format is sql/iso
78 if ( $date_format eq 'metric' ) {
79 # metric format is "dd/mm/yyyy[ hh:mm:ss]"
88 elsif ( $date_format eq 'us' ) {
89 # us format is "mm/dd/yyyy[ hh:mm:ss]"
98 elsif ( $date_format eq 'iso' or $date_format eq 'sql' ) {
99 # iso or sql format are yyyy-dd-mm[ hh:mm:ss]"
100 $regex = $fallback_re;
103 die "Invalid dateformat parameter ($date_format)";
106 # Add the faculative time part [hh:mm[:ss]]
120 $fallback_re .= $time_re;
123 if ( $date_string =~ $regex ) {
129 minute => $+{minute},
130 second => $+{second},
132 } elsif ( $date_string =~ $fallback_re ) {
138 minute => $+{minute},
139 second => $+{second},
143 die "The given date ($date_string) does not match the date format ($date_format)";
146 # system allows the 0th of the month
147 $dt_params{day} = '01' if $dt_params{day} eq '00';
149 # Set default hh:mm:ss to 00:00:00
150 $dt_params{hour} = 00 unless defined $dt_params{hour};
151 $dt_params{minute} = 00 unless defined $dt_params{minute};
152 $dt_params{second} = 00 unless defined $dt_params{second};
157 # No TZ for dates 'infinite' => see bug 13242
158 ( $dt_params{year} < 9999 ? ( time_zone => $tz->name ) : () ),
162 $tz = DateTime::TimeZone->new( name => 'floating' );
165 # No TZ for dates 'infinite' => see bug 13242
166 ( $dt_params{year} < 9999 ? ( time_zone => $tz->name ) : () ),
174 $date_string = output_pref({ dt => $dt [, dateformat => $date_format, timeformat => $time_format, dateonly => 0|1, as_due_date => 0|1 ] });
175 $date_string = output_pref( $dt );
177 Returns a string containing the time & date formatted as per the C4::Context setting,
178 or C<undef> if C<undef> was provided.
180 This routine can either be passed a DateTime object or or a hashref. If it is
181 passed a hashref, the expected keys are a mandatory 'dt' for the DateTime,
182 an optional 'dateformat' to override the dateformat system preference, an
183 optional 'timeformat' to override the TimeFormat system preference value,
184 and an optional 'dateonly' to specify that only the formatted date string
185 should be returned without the time.
191 my ( $dt, $str, $force_pref, $force_time, $dateonly, $as_due_date );
192 if ( ref $params eq 'HASH' ) {
194 $str = $params->{str};
195 $force_pref = $params->{dateformat}; # if testing we want to override Context
196 $force_time = $params->{timeformat};
197 $dateonly = $params->{dateonly} || 0; # if you don't want the hours and minutes
198 $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)
203 carp "output_pref should not be called with both dt and str parameters"
207 $dt = eval { dt_from_string( $str ) } if $str;
208 carp "Invalid date '$str' passed to output_pref\n" if $@;
210 return unless defined $dt;
212 # FIXME: see bug 13242 => no TZ for dates 'infinite'
213 if ( $dt->ymd !~ /^9999/ ) {
214 my $tz = $dateonly ? DateTime::TimeZone->new(name => 'floating') : C4::Context->tz;
215 $dt->set_time_zone( $tz );
219 defined $force_pref ? $force_pref : C4::Context->preference('dateformat');
221 my $time_format = $force_time || C4::Context->preference('TimeFormat') || q{};
222 my $time = ( $time_format eq '12hr' ) ? '%I:%M %p' : '%H:%M';
224 if ( $pref =~ m/^iso/ ) {
226 ? $dt->strftime("%Y-%m-%d")
227 : $dt->strftime("%Y-%m-%d $time");
229 elsif ( $pref =~ m/^metric/ ) {
231 ? $dt->strftime("%d/%m/%Y")
232 : $dt->strftime("%d/%m/%Y $time");
234 elsif ( $pref =~ m/^us/ ) {
236 ? $dt->strftime("%m/%d/%Y")
237 : $dt->strftime("%m/%d/%Y $time");
241 ? $dt->strftime("%Y-%m-%d")
242 : $dt->strftime("%Y-%m-%d $time");
245 if ( $as_due_date ) {
246 $time_format eq '12hr'
247 ? $date =~ s| 11:59 PM$||
248 : $date =~ s| 23:59$||;
254 =head2 format_sqldatetime
256 $string = format_sqldatetime( $string_as_returned_from_db );
258 a convenience routine for calling dt_from_string and formatting the result
259 with output_pref as it is a frequent activity in scripts
263 sub format_sqldatetime {
265 my $force_pref = shift; # if testing we want to override Context
266 my $force_time = shift;
267 my $dateonly = shift;
269 if ( defined $str && $str =~ m/^\d{4}-\d{2}-\d{2}/ ) {
270 my $dt = dt_from_string( $str, 'sql' );
271 return q{} unless $dt;
272 $dt->truncate( to => 'minute' );
275 dateformat => $force_pref,
276 timeformat => $force_time,
277 dateonly => $dateonly