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 my $do_fallback = defined($date_format) ? 0 : 1;
63 my $server_tz = C4::Context->tz;
64 $tz = C4::Context->tz unless $tz;
66 return DateTime->now( time_zone => $tz ) unless $date_string;
68 $date_format = C4::Context->preference('dateformat') unless $date_format;
70 if ( ref($date_string) eq 'DateTime' ) { # already a dt return it
76 # The fallback format is sql/iso
85 if ( $date_format eq 'metric' ) {
86 # metric format is "dd/mm/yyyy[ hh:mm:ss]"
95 elsif ( $date_format eq 'dmydot' ) {
96 # dmydot format is "dd.mm.yyyy[ hh:mm:ss]"
105 elsif ( $date_format eq 'us' ) {
106 # us format is "mm/dd/yyyy[ hh:mm:ss]"
115 elsif ( $date_format eq 'rfc3339' ) {
128 (\.\d{1,3})?(([Zz]$)|((?<offset>[\+|\-])(?<hours>[01][0-9]|2[0-3]):(?<minutes>[0-5][0-9])))
131 # Default to UTC (when 'Z' is passed) for inbound timezone.
132 $tz = DateTime::TimeZone->new( name => 'UTC' );
134 elsif ( $date_format eq 'iso' or $date_format eq 'sql' ) {
135 # iso or sql format are yyyy-dd-mm[ hh:mm:ss]"
136 $regex = $fallback_re;
139 die "Invalid dateformat parameter ($date_format)";
142 # Add the faculative time part [hh:mm[:ss]]
159 $regex .= $time_re unless ( $date_format eq 'rfc3339' );
160 $fallback_re .= $time_re;
164 if ( $date_string =~ $regex ) {
170 minute => $+{minute},
171 second => $+{second},
175 # If offset given, set inbound timezone using it.
176 $tz = DateTime::TimeZone->new( name => $+{offset} . $+{hours} . $+{minutes} );
178 } elsif ( $do_fallback && $date_string =~ $fallback_re ) {
184 minute => $+{minute},
185 second => $+{second},
190 die "The given date ($date_string) does not match the date format ($date_format)";
193 # system allows the 0th of the month
194 $dt_params{day} = '01' if $dt_params{day} eq '00';
196 # Set default hh:mm:ss to 00:00:00
197 my $date_only = ( !defined( $dt_params{hour} )
198 && !defined( $dt_params{minute} )
199 && !defined( $dt_params{second} ) );
200 $dt_params{hour} = 00 unless defined $dt_params{hour};
201 $dt_params{minute} = 00 unless defined $dt_params{minute};
202 $dt_params{second} = 00 unless defined $dt_params{second};
205 if ( $ampm eq 'AM' ) {
206 $dt_params{hour} = 00 if $dt_params{hour} == 12;
207 } elsif ( $dt_params{hour} != 12 ) { # PM
208 $dt_params{hour} += 12;
209 $dt_params{hour} = 00 if $dt_params{hour} == 24;
217 # No TZ for dates 'infinite' => see bug 13242
218 ( $dt_params{year} < 9999 ? ( time_zone => $tz ) : () ),
222 $tz = DateTime::TimeZone->new( name => 'floating' );
226 # No TZ for dates 'infinite' => see bug 13242
227 ( $dt_params{year} < 9999 ? ( time_zone => $tz ) : () ),
231 # Convert to configured timezone (unless we started with a dateonly string or had to drop to floating time)
232 $dt->set_time_zone($server_tz) unless ( $date_only || $floating );
239 $date_string = output_pref({ dt => $dt [, dateformat => $date_format, timeformat => $time_format, dateonly => 0|1, as_due_date => 0|1 ] });
240 $date_string = output_pref( $dt );
242 Returns a string containing the time & date formatted as per the C4::Context setting,
243 or C<undef> if C<undef> was provided.
245 This routine can either be passed a DateTime object or or a hashref. If it is
246 passed a hashref, the expected keys are a mandatory 'dt' for the DateTime,
247 an optional 'dateformat' to override the dateformat system preference, an
248 optional 'timeformat' to override the TimeFormat system preference value,
249 and an optional 'dateonly' to specify that only the formatted date string
250 should be returned without the time.
256 my ( $dt, $str, $force_pref, $force_time, $dateonly, $as_due_date );
257 if ( ref $params eq 'HASH' ) {
259 $str = $params->{str};
260 $force_pref = $params->{dateformat}; # if testing we want to override Context
261 $force_time = $params->{timeformat};
262 $dateonly = $params->{dateonly} || 0; # if you don't want the hours and minutes
263 $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)
268 Koha::Exceptions::WrongParameter->throw( 'output_pref should not be called with both dt and str parameter' ) if $dt and $str;
272 $dt = eval { dt_from_string( $str ) };
273 Koha::Exceptions::WrongParameter->throw("Invalid date '$str' passed to output_pref" ) if $@;
276 return if !defined $dt; # NULL date
277 Koha::Exceptions::WrongParameter->throw( "output_pref is called with '$dt' (ref ". ( ref($dt) ? ref($dt):'SCALAR')."), not a DateTime object") if ref($dt) ne 'DateTime';
279 # FIXME: see bug 13242 => no TZ for dates 'infinite'
280 if ( $dt->ymd !~ /^9999/ ) {
281 my $tz = $dateonly ? DateTime::TimeZone->new(name => 'floating') : C4::Context->tz;
282 $dt->set_time_zone( $tz );
286 defined $force_pref ? $force_pref : C4::Context->preference('dateformat');
288 my $time_format = $force_time || C4::Context->preference('TimeFormat') || q{};
289 my $time = ( $time_format eq '12hr' ) ? '%I:%M %p' : '%H:%M';
291 if ( $pref =~ m/^iso/ ) {
293 ? $dt->strftime("%Y-%m-%d")
294 : $dt->strftime("%Y-%m-%d $time");
296 elsif ( $pref =~ m/^rfc3339/ ) {
298 $date = $dt->strftime('%FT%T%z');
299 substr($date, -2, 0, ':'); # timezone "HHmm" => "HH:mm"
302 $date = $dt->strftime("%Y-%m-%d");
305 elsif ( $pref =~ m/^metric/ ) {
307 ? $dt->strftime("%d/%m/%Y")
308 : $dt->strftime("%d/%m/%Y $time");
310 elsif ( $pref =~ m/^dmydot/ ) {
312 ? $dt->strftime("%d.%m.%Y")
313 : $dt->strftime("%d.%m.%Y $time");
316 elsif ( $pref =~ m/^us/ ) {
318 ? $dt->strftime("%m/%d/%Y")
319 : $dt->strftime("%m/%d/%Y $time");
323 ? $dt->strftime("%Y-%m-%d")
324 : $dt->strftime("%Y-%m-%d $time");
327 if ( $as_due_date ) {
328 $time_format eq '12hr'
329 ? $date =~ s| 11:59 PM$||
330 : $date =~ s| 23:59$||;
336 =head2 format_sqldatetime
338 $string = format_sqldatetime( $string_as_returned_from_db );
340 a convenience routine for calling dt_from_string and formatting the result
341 with output_pref as it is a frequent activity in scripts
345 sub format_sqldatetime {
347 my $force_pref = shift; # if testing we want to override Context
348 my $force_time = shift;
349 my $dateonly = shift;
351 if ( defined $str && $str =~ m/^\d{4}-\d{2}-\d{2}/ ) {
352 my $dt = dt_from_string( $str, 'sql' );
353 return q{} unless $dt;
354 $dt->truncate( to => 'minute' );
357 dateformat => $force_pref,
358 timeformat => $force_time,
359 dateonly => $dateonly