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.
27 qw( dt_from_string output_pref format_sqldatetime )
32 Koha::DateUtils - Transitional wrappers to ease use of DateTime
36 Koha has historically only used dates not datetimes and been content to
37 handle these as strings. It also has confused formatting with actual dates
38 this is a temporary module for wrappers to hide the complexity of switch to DateTime
44 $dt = dt_from_string($date_string, [$format, $timezone ]);
46 Passed a date string returns a DateTime object format and timezone default
47 to the system preferences. If the date string is empty DateTime->now is returned
52 my ( $date_string, $date_format, $tz ) = @_;
54 return if $date_string and $date_string =~ m|^0000-0|;
56 $tz = C4::Context->tz unless $tz;;
58 return DateTime->now( time_zone => $tz ) unless $date_string;
60 $date_format = C4::Context->preference('dateformat') unless $date_format;
62 if ( ref($date_string) eq 'DateTime' ) { # already a dt return it
68 # The fallback format is sql/iso
77 if ( $date_format eq 'metric' ) {
78 # metric format is "dd/mm/yyyy[ hh:mm:ss]"
87 elsif ( $date_format eq 'dmydot' ) {
88 # dmydot format is "dd.mm.yyyy[ hh:mm:ss]"
97 elsif ( $date_format eq 'us' ) {
98 # us format is "mm/dd/yyyy[ hh:mm:ss]"
107 elsif ( $date_format eq 'rfc3339' ) {
120 (\.\d{1,3})?(([Zz])|([\+|\-]([01][0-9]|2[0-3]):[0-5][0-9]))
123 elsif ( $date_format eq 'iso' or $date_format eq 'sql' ) {
124 # iso or sql format are yyyy-dd-mm[ hh:mm:ss]"
125 $regex = $fallback_re;
128 die "Invalid dateformat parameter ($date_format)";
131 # Add the faculative time part [hh:mm[:ss]]
149 $fallback_re .= $time_re;
153 if ( $date_string =~ $regex ) {
159 minute => $+{minute},
160 second => $+{second},
163 } elsif ( $date_string =~ $fallback_re ) {
169 minute => $+{minute},
170 second => $+{second},
175 die "The given date ($date_string) does not match the date format ($date_format)";
178 # system allows the 0th of the month
179 $dt_params{day} = '01' if $dt_params{day} eq '00';
181 # Set default hh:mm:ss to 00:00:00
182 $dt_params{hour} = 00 unless defined $dt_params{hour};
183 $dt_params{minute} = 00 unless defined $dt_params{minute};
184 $dt_params{second} = 00 unless defined $dt_params{second};
187 if ( $ampm eq 'AM' ) {
188 $dt_params{hour} = 00 if $dt_params{hour} == 12;
189 } elsif ( $dt_params{hour} != 12 ) { # PM
190 $dt_params{hour} += 12;
191 $dt_params{hour} = 00 if $dt_params{hour} == 24;
198 # No TZ for dates 'infinite' => see bug 13242
199 ( $dt_params{year} < 9999 ? ( time_zone => $tz->name ) : () ),
203 $tz = DateTime::TimeZone->new( name => 'floating' );
206 # No TZ for dates 'infinite' => see bug 13242
207 ( $dt_params{year} < 9999 ? ( time_zone => $tz->name ) : () ),
215 $date_string = output_pref({ dt => $dt [, dateformat => $date_format, timeformat => $time_format, dateonly => 0|1, as_due_date => 0|1 ] });
216 $date_string = output_pref( $dt );
218 Returns a string containing the time & date formatted as per the C4::Context setting,
219 or C<undef> if C<undef> was provided.
221 This routine can either be passed a DateTime object or or a hashref. If it is
222 passed a hashref, the expected keys are a mandatory 'dt' for the DateTime,
223 an optional 'dateformat' to override the dateformat system preference, an
224 optional 'timeformat' to override the TimeFormat system preference value,
225 and an optional 'dateonly' to specify that only the formatted date string
226 should be returned without the time.
232 my ( $dt, $str, $force_pref, $force_time, $dateonly, $as_due_date );
233 if ( ref $params eq 'HASH' ) {
235 $str = $params->{str};
236 $force_pref = $params->{dateformat}; # if testing we want to override Context
237 $force_time = $params->{timeformat};
238 $dateonly = $params->{dateonly} || 0; # if you don't want the hours and minutes
239 $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)
244 Koha::Exceptions::WrongParameter->throw( 'output_pref should not be called with both dt and str parameter' ) if $dt and $str;
248 $dt = eval { dt_from_string( $str ) };
249 Koha::Exceptions::WrongParameter->throw("Invalid date '$str' passed to output_pref" ) if $@;
252 return if !defined $dt; # NULL date
253 Koha::Exceptions::WrongParameter->throw( "output_pref is called with '$dt' (ref ". ( ref($dt) ? ref($dt):'SCALAR')."), not a DateTime object") if ref($dt) ne 'DateTime';
255 # FIXME: see bug 13242 => no TZ for dates 'infinite'
256 if ( $dt->ymd !~ /^9999/ ) {
257 my $tz = $dateonly ? DateTime::TimeZone->new(name => 'floating') : C4::Context->tz;
258 $dt->set_time_zone( $tz );
262 defined $force_pref ? $force_pref : C4::Context->preference('dateformat');
264 my $time_format = $force_time || C4::Context->preference('TimeFormat') || q{};
265 my $time = ( $time_format eq '12hr' ) ? '%I:%M %p' : '%H:%M';
267 if ( $pref =~ m/^iso/ ) {
269 ? $dt->strftime("%Y-%m-%d")
270 : $dt->strftime("%Y-%m-%d $time");
272 elsif ( $pref =~ m/^rfc3339/ ) {
274 $date = $dt->strftime('%FT%T%z');
275 substr($date, -2, 0, ':'); # timezone "HHmm" => "HH:mm"
278 $date = $dt->strftime("%Y-%m-%d");
281 elsif ( $pref =~ m/^metric/ ) {
283 ? $dt->strftime("%d/%m/%Y")
284 : $dt->strftime("%d/%m/%Y $time");
286 elsif ( $pref =~ m/^dmydot/ ) {
288 ? $dt->strftime("%d.%m.%Y")
289 : $dt->strftime("%d.%m.%Y $time");
292 elsif ( $pref =~ m/^us/ ) {
294 ? $dt->strftime("%m/%d/%Y")
295 : $dt->strftime("%m/%d/%Y $time");
299 ? $dt->strftime("%Y-%m-%d")
300 : $dt->strftime("%Y-%m-%d $time");
303 if ( $as_due_date ) {
304 $time_format eq '12hr'
305 ? $date =~ s| 11:59 PM$||
306 : $date =~ s| 23:59$||;
312 =head2 format_sqldatetime
314 $string = format_sqldatetime( $string_as_returned_from_db );
316 a convenience routine for calling dt_from_string and formatting the result
317 with output_pref as it is a frequent activity in scripts
321 sub format_sqldatetime {
323 my $force_pref = shift; # if testing we want to override Context
324 my $force_time = shift;
325 my $dateonly = shift;
327 if ( defined $str && $str =~ m/^\d{4}-\d{2}-\d{2}/ ) {
328 my $dt = dt_from_string( $str, 'sql' );
329 return q{} unless $dt;
330 $dt->truncate( to => 'minute' );
333 dateformat => $force_pref,
334 timeformat => $force_time,
335 dateonly => $dateonly