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>.
23 use Koha::DateTime::Format::RFC3339;
25 use vars qw(@ISA @EXPORT_OK);
40 Koha::DateUtils - Transitional wrappers to ease use of DateTime
44 Koha has historically only used dates not datetimes and been content to
45 handle these as strings. It also has confused formatting with actual dates
46 this is a temporary module for wrappers to hide the complexity of switch to DateTime
52 $dt = dt_from_string($date_string, [$format, $timezone ]);
54 Passed a date string returns a DateTime object format and timezone default
55 to the system preferences. If the date string is empty DateTime->now is returned
60 my ( $date_string, $date_format, $tz ) = @_;
62 return if $date_string and $date_string =~ m|^0000-0|;
64 my $do_fallback = defined($date_format) ? 0 : 1;
65 my $server_tz = C4::Context->tz;
66 $tz = C4::Context->tz unless $tz;
68 return DateTime->now( time_zone => $tz ) unless $date_string;
70 $date_format = C4::Context->preference('dateformat') unless $date_format;
72 if ( ref($date_string) eq 'DateTime' ) { # already a dt return a clone
73 return $date_string->clone();
76 if ($date_format eq 'rfc3339') {
77 return Koha::DateTime::Format::RFC3339->parse_datetime($date_string);
82 # The fallback format is sql/iso
91 if ( $date_format eq 'metric' ) {
92 # metric format is "dd/mm/yyyy[ hh:mm:ss]"
101 elsif ( $date_format eq 'dmydot' ) {
102 # dmydot format is "dd.mm.yyyy[ hh:mm:ss]"
111 elsif ( $date_format eq 'us' ) {
112 # us format is "mm/dd/yyyy[ hh:mm:ss]"
121 elsif ( $date_format eq 'iso' or $date_format eq 'sql' ) {
122 # iso or sql format are yyyy-dd-mm[ hh:mm:ss]"
123 $regex = $fallback_re;
126 die "Invalid dateformat parameter ($date_format)";
129 # Add the facultative time part including time zone offset; ISO8601 allows +02 or +0200 too
146 (?<utc>[Zz]$)|((?<offset>[\+|\-])(?<hours>[01][0-9]|2[0-3]):?(?<minutes>[0-5][0-9])?)
151 $fallback_re .= $time_re;
153 # Ensure we only accept date strings and not other characters.
154 $regex = '^' . $regex . '$';
155 $fallback_re = '^' . $fallback_re . '$';
159 if ( $date_string =~ $regex ) {
165 minute => $+{minute},
166 second => $+{second},
170 $tz = DateTime::TimeZone->new( name => 'UTC' );
173 # If offset given, set inbound timezone using it.
174 $tz = DateTime::TimeZone->new( name => $+{offset} . $+{hours} . ( $+{minutes} || '00' ) );
176 } elsif ( $do_fallback && $date_string =~ $fallback_re ) {
182 minute => $+{minute},
183 second => $+{second},
188 die "The given date ($date_string) does not match the date format ($date_format)";
191 # system allows the 0th of the month
192 $dt_params{day} = '01' if $dt_params{day} eq '00';
194 # Set default hh:mm:ss to 00:00:00
195 my $date_only = ( !defined( $dt_params{hour} )
196 && !defined( $dt_params{minute} )
197 && !defined( $dt_params{second} ) );
198 $dt_params{hour} = 00 unless defined $dt_params{hour};
199 $dt_params{minute} = 00 unless defined $dt_params{minute};
200 $dt_params{second} = 00 unless defined $dt_params{second};
203 if ( $ampm eq 'AM' ) {
204 $dt_params{hour} = 00 if $dt_params{hour} == 12;
205 } elsif ( $dt_params{hour} != 12 ) { # PM
206 $dt_params{hour} += 12;
207 $dt_params{hour} = 00 if $dt_params{hour} == 24;
215 # No TZ for dates 'infinite' => see bug 13242
216 ( $dt_params{year} < 9999 ? ( time_zone => $tz ) : () ),
220 $tz = DateTime::TimeZone->new( name => 'floating' );
224 # No TZ for dates 'infinite' => see bug 13242
225 ( $dt_params{year} < 9999 ? ( time_zone => $tz ) : () ),
229 # Convert to configured timezone (unless we started with a dateonly string or had to drop to floating time)
230 $dt->set_time_zone($server_tz) unless ( $date_only || $floating );
237 $date_string = output_pref({ dt => $dt [, dateformat => $date_format, timeformat => $time_format, dateonly => 0|1, as_due_date => 0|1 ] });
238 $date_string = output_pref( $dt );
240 Returns a string containing the time & date formatted as per the C4::Context setting,
241 or C<undef> if C<undef> was provided.
243 This routine can either be passed a DateTime object or or a hashref. If it is
244 passed a hashref, the expected keys are a mandatory 'dt' for the DateTime,
245 an optional 'dateformat' to override the dateformat system preference, an
246 optional 'timeformat' to override the TimeFormat system preference value,
247 and an optional 'dateonly' to specify that only the formatted date string
248 should be returned without the time.
254 my ( $dt, $str, $force_pref, $force_time, $dateonly, $as_due_date );
255 if ( ref $params eq 'HASH' ) {
257 $str = $params->{str};
258 $force_pref = $params->{dateformat}; # if testing we want to override Context
259 $force_time = $params->{timeformat};
260 $dateonly = $params->{dateonly} || 0; # if you don't want the hours and minutes
261 $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)
266 Koha::Exceptions::WrongParameter->throw( 'output_pref should not be called with both dt and str parameter' ) if $dt and $str;
270 $dt = eval { dt_from_string( $str ) };
271 Koha::Exceptions::WrongParameter->throw("Invalid date '$str' passed to output_pref" ) if $@;
274 return if !defined $dt; # NULL date
275 Koha::Exceptions::WrongParameter->throw( "output_pref is called with '$dt' (ref ". ( ref($dt) ? ref($dt):'SCALAR')."), not a DateTime object") if ref($dt) ne 'DateTime';
277 # FIXME: see bug 13242 => no TZ for dates 'infinite'
278 if ( $dt->ymd !~ /^9999/ ) {
279 my $tz = $dateonly ? DateTime::TimeZone->new(name => 'floating') : C4::Context->tz;
280 eval { $dt->set_time_zone( $tz ); }
284 defined $force_pref ? $force_pref : C4::Context->preference('dateformat');
286 my $time_format = $force_time || C4::Context->preference('TimeFormat') || q{};
287 my $time = ( $time_format eq '12hr' ) ? '%I:%M %p' : '%H:%M';
289 if ( $pref =~ m/^iso/ ) {
291 ? $dt->strftime("%Y-%m-%d")
292 : $dt->strftime("%Y-%m-%d $time");
294 elsif ( $pref =~ m/^rfc3339/ ) {
296 $date = Koha::DateTime::Format::RFC3339->format_datetime($dt);
299 $date = $dt->strftime("%Y-%m-%d");
302 elsif ( $pref =~ m/^metric/ ) {
304 ? $dt->strftime("%d/%m/%Y")
305 : $dt->strftime("%d/%m/%Y $time");
307 elsif ( $pref =~ m/^dmydot/ ) {
309 ? $dt->strftime("%d.%m.%Y")
310 : $dt->strftime("%d.%m.%Y $time");
313 elsif ( $pref =~ m/^us/ ) {
315 ? $dt->strftime("%m/%d/%Y")
316 : $dt->strftime("%m/%d/%Y $time");
320 ? $dt->strftime("%Y-%m-%d")
321 : $dt->strftime("%Y-%m-%d $time");
324 if ( $as_due_date ) {
325 $time_format eq '12hr'
326 ? $date =~ s| 11:59 PM$||
327 : $date =~ s| 23:59$||;
333 =head2 format_sqldatetime
335 $string = format_sqldatetime( $string_as_returned_from_db );
337 a convenience routine for calling dt_from_string and formatting the result
338 with output_pref as it is a frequent activity in scripts
342 sub format_sqldatetime {
344 my $force_pref = shift; # if testing we want to override Context
345 my $force_time = shift;
346 my $dateonly = shift;
348 if ( defined $str && $str =~ m/^\d{4}-\d{2}-\d{2}/ ) {
349 my $dt = dt_from_string( $str, 'sql' );
350 return q{} unless $dt;
351 $dt->truncate( to => 'minute' );
354 dateformat => $force_pref,
355 timeformat => $force_time,
356 dateonly => $dateonly
362 =head2 flatpickr_date_format
364 $date_format = flatpickr_date_format( $koha_date_format );
366 Converts Koha's date format to Flatpickr's. E.g. 'us' returns 'm/d/Y'.
368 If no argument is given, the dateformat preference is assumed.
370 Returns undef if format is unknown.
374 sub flatpickr_date_format {
375 my $arg = shift // C4::Context->preference('dateformat');