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
7 # under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 3 of the License, or
9 # (at your option) any later version.
11 # Koha is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with Koha; if not, see <http://www.gnu.org/licenses>.
24 use vars qw(@ISA @EXPORT_OK);
38 Koha::DateUtils - Transitional wrappers to ease use of DateTime
42 Koha has historically only used dates not datetimes and been content to
43 handle these as strings. It also has confused formatting with actual dates
44 this is a temporary module for wrappers to hide the complexity of switch to DateTime
50 $dt = dt_from_string($date_string, [$format, $timezone ]);
52 Passed a date string returns a DateTime object format and timezone default
53 to the system preferences. If the date string is empty DateTime->now is returned
58 my ( $date_string, $date_format, $tz ) = @_;
60 return if $date_string and $date_string =~ m|^0000-0|;
62 $tz = C4::Context->tz unless $tz;;
64 return DateTime->now( time_zone => $tz ) unless $date_string;
66 $date_format = C4::Context->preference('dateformat') unless $date_format;
68 if ( ref($date_string) eq 'DateTime' ) { # already a dt return it
74 # The fallback format is sql/iso
83 if ( $date_format eq 'metric' ) {
84 # metric format is "dd/mm/yyyy[ hh:mm:ss]"
93 elsif ( $date_format eq 'dmydot' ) {
94 # dmydot format is "dd.mm.yyyy[ hh:mm:ss]"
103 elsif ( $date_format eq 'us' ) {
104 # us format is "mm/dd/yyyy[ hh:mm:ss]"
113 elsif ( $date_format eq 'rfc3339' ) {
126 (\.\d{1,3})?(([Zz])|((?<offset>[\+|\-])(?<hours>[01][0-9]|2[0-3]):(?<minutes>[0-5][0-9])))
129 elsif ( $date_format eq 'iso' or $date_format eq 'sql' ) {
130 # iso or sql format are yyyy-dd-mm[ hh:mm:ss]"
131 $regex = $fallback_re;
134 die "Invalid dateformat parameter ($date_format)";
137 # Add the faculative time part [hh:mm[:ss]]
155 $fallback_re .= $time_re;
159 if ( $date_string =~ $regex ) {
165 minute => $+{minute},
166 second => $+{second},
170 $tz = DateTime::TimeZone->new( name => $+{offset} . $+{hours} . $+{minutes} );
172 } elsif ( $date_string =~ $fallback_re ) {
178 minute => $+{minute},
179 second => $+{second},
184 die "The given date ($date_string) does not match the date format ($date_format)";
187 # system allows the 0th of the month
188 $dt_params{day} = '01' if $dt_params{day} eq '00';
190 # Set default hh:mm:ss to 00:00:00
191 $dt_params{hour} = 00 unless defined $dt_params{hour};
192 $dt_params{minute} = 00 unless defined $dt_params{minute};
193 $dt_params{second} = 00 unless defined $dt_params{second};
196 if ( $ampm eq 'AM' ) {
197 $dt_params{hour} = 00 if $dt_params{hour} == 12;
198 } elsif ( $dt_params{hour} != 12 ) { # PM
199 $dt_params{hour} += 12;
200 $dt_params{hour} = 00 if $dt_params{hour} == 24;
207 # No TZ for dates 'infinite' => see bug 13242
208 ( $dt_params{year} < 9999 ? ( time_zone => $tz ) : () ),
212 $tz = DateTime::TimeZone->new( name => 'floating' );
215 # No TZ for dates 'infinite' => see bug 13242
216 ( $dt_params{year} < 9999 ? ( time_zone => $tz ) : () ),
224 $date_string = output_pref({ dt => $dt [, dateformat => $date_format, timeformat => $time_format, dateonly => 0|1, as_due_date => 0|1 ] });
225 $date_string = output_pref( $dt );
227 Returns a string containing the time & date formatted as per the C4::Context setting,
228 or C<undef> if C<undef> was provided.
230 This routine can either be passed a DateTime object or or a hashref. If it is
231 passed a hashref, the expected keys are a mandatory 'dt' for the DateTime,
232 an optional 'dateformat' to override the dateformat system preference, an
233 optional 'timeformat' to override the TimeFormat system preference value,
234 and an optional 'dateonly' to specify that only the formatted date string
235 should be returned without the time.
241 my ( $dt, $str, $force_pref, $force_time, $dateonly, $as_due_date );
242 if ( ref $params eq 'HASH' ) {
244 $str = $params->{str};
245 $force_pref = $params->{dateformat}; # if testing we want to override Context
246 $force_time = $params->{timeformat};
247 $dateonly = $params->{dateonly} || 0; # if you don't want the hours and minutes
248 $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)
253 Koha::Exceptions::WrongParameter->throw( 'output_pref should not be called with both dt and str parameter' ) if $dt and $str;
257 $dt = eval { dt_from_string( $str ) };
258 Koha::Exceptions::WrongParameter->throw("Invalid date '$str' passed to output_pref" ) if $@;
261 return if !defined $dt; # NULL date
262 Koha::Exceptions::WrongParameter->throw( "output_pref is called with '$dt' (ref ". ( ref($dt) ? ref($dt):'SCALAR')."), not a DateTime object") if ref($dt) ne 'DateTime';
264 # FIXME: see bug 13242 => no TZ for dates 'infinite'
265 if ( $dt->ymd !~ /^9999/ ) {
266 my $tz = $dateonly ? DateTime::TimeZone->new(name => 'floating') : C4::Context->tz;
267 $dt->set_time_zone( $tz );
271 defined $force_pref ? $force_pref : C4::Context->preference('dateformat');
273 my $time_format = $force_time || C4::Context->preference('TimeFormat') || q{};
274 my $time = ( $time_format eq '12hr' ) ? '%I:%M %p' : '%H:%M';
276 if ( $pref =~ m/^iso/ ) {
278 ? $dt->strftime("%Y-%m-%d")
279 : $dt->strftime("%Y-%m-%d $time");
281 elsif ( $pref =~ m/^rfc3339/ ) {
283 $date = $dt->strftime('%FT%T%z');
284 substr($date, -2, 0, ':'); # timezone "HHmm" => "HH:mm"
287 $date = $dt->strftime("%Y-%m-%d");
290 elsif ( $pref =~ m/^metric/ ) {
292 ? $dt->strftime("%d/%m/%Y")
293 : $dt->strftime("%d/%m/%Y $time");
295 elsif ( $pref =~ m/^dmydot/ ) {
297 ? $dt->strftime("%d.%m.%Y")
298 : $dt->strftime("%d.%m.%Y $time");
301 elsif ( $pref =~ m/^us/ ) {
303 ? $dt->strftime("%m/%d/%Y")
304 : $dt->strftime("%m/%d/%Y $time");
308 ? $dt->strftime("%Y-%m-%d")
309 : $dt->strftime("%Y-%m-%d $time");
312 if ( $as_due_date ) {
313 $time_format eq '12hr'
314 ? $date =~ s| 11:59 PM$||
315 : $date =~ s| 23:59$||;
321 =head2 format_sqldatetime
323 $string = format_sqldatetime( $string_as_returned_from_db );
325 a convenience routine for calling dt_from_string and formatting the result
326 with output_pref as it is a frequent activity in scripts
330 sub format_sqldatetime {
332 my $force_pref = shift; # if testing we want to override Context
333 my $force_time = shift;
334 my $dateonly = shift;
336 if ( defined $str && $str =~ m/^\d{4}-\d{2}-\d{2}/ ) {
337 my $dt = dt_from_string( $str, 'sql' );
338 return q{} unless $dt;
339 $dt->truncate( to => 'minute' );
342 dateformat => $force_pref,
343 timeformat => $force_time,
344 dateonly => $dateonly