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 'iso' or $date_format eq 'sql' ) {
108 # iso or sql format are yyyy-dd-mm[ hh:mm:ss]"
109 $regex = $fallback_re;
112 die "Invalid dateformat parameter ($date_format)";
115 # Add the faculative time part [hh:mm[:ss]]
129 $fallback_re .= $time_re;
132 if ( $date_string =~ $regex ) {
138 minute => $+{minute},
139 second => $+{second},
141 } elsif ( $date_string =~ $fallback_re ) {
147 minute => $+{minute},
148 second => $+{second},
152 die "The given date ($date_string) does not match the date format ($date_format)";
155 # system allows the 0th of the month
156 $dt_params{day} = '01' if $dt_params{day} eq '00';
158 # Set default hh:mm:ss to 00:00:00
159 $dt_params{hour} = 00 unless defined $dt_params{hour};
160 $dt_params{minute} = 00 unless defined $dt_params{minute};
161 $dt_params{second} = 00 unless defined $dt_params{second};
166 # No TZ for dates 'infinite' => see bug 13242
167 ( $dt_params{year} < 9999 ? ( time_zone => $tz->name ) : () ),
171 $tz = DateTime::TimeZone->new( name => 'floating' );
174 # No TZ for dates 'infinite' => see bug 13242
175 ( $dt_params{year} < 9999 ? ( time_zone => $tz->name ) : () ),
183 $date_string = output_pref({ dt => $dt [, dateformat => $date_format, timeformat => $time_format, dateonly => 0|1, as_due_date => 0|1 ] });
184 $date_string = output_pref( $dt );
186 Returns a string containing the time & date formatted as per the C4::Context setting,
187 or C<undef> if C<undef> was provided.
189 This routine can either be passed a DateTime object or or a hashref. If it is
190 passed a hashref, the expected keys are a mandatory 'dt' for the DateTime,
191 an optional 'dateformat' to override the dateformat system preference, an
192 optional 'timeformat' to override the TimeFormat system preference value,
193 and an optional 'dateonly' to specify that only the formatted date string
194 should be returned without the time.
200 my ( $dt, $str, $force_pref, $force_time, $dateonly, $as_due_date );
201 if ( ref $params eq 'HASH' ) {
203 $str = $params->{str};
204 $force_pref = $params->{dateformat}; # if testing we want to override Context
205 $force_time = $params->{timeformat};
206 $dateonly = $params->{dateonly} || 0; # if you don't want the hours and minutes
207 $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)
212 carp "output_pref should not be called with both dt and str parameters"
218 $dt = eval { dt_from_string( $str ) };
219 carp "Invalid date '$str' passed to output_pref\n" if $@;
222 return unless defined $dt;
224 # FIXME: see bug 13242 => no TZ for dates 'infinite'
225 if ( $dt->ymd !~ /^9999/ ) {
226 my $tz = $dateonly ? DateTime::TimeZone->new(name => 'floating') : C4::Context->tz;
227 $dt->set_time_zone( $tz );
231 defined $force_pref ? $force_pref : C4::Context->preference('dateformat');
233 my $time_format = $force_time || C4::Context->preference('TimeFormat') || q{};
234 my $time = ( $time_format eq '12hr' ) ? '%I:%M %p' : '%H:%M';
236 if ( $pref =~ m/^iso/ ) {
238 ? $dt->strftime("%Y-%m-%d")
239 : $dt->strftime("%Y-%m-%d $time");
241 elsif ( $pref =~ m/^metric/ ) {
243 ? $dt->strftime("%d/%m/%Y")
244 : $dt->strftime("%d/%m/%Y $time");
246 elsif ( $pref =~ m/^dmydot/ ) {
248 ? $dt->strftime("%d.%m.%Y")
249 : $dt->strftime("%d.%m.%Y $time");
252 elsif ( $pref =~ m/^us/ ) {
254 ? $dt->strftime("%m/%d/%Y")
255 : $dt->strftime("%m/%d/%Y $time");
259 ? $dt->strftime("%Y-%m-%d")
260 : $dt->strftime("%Y-%m-%d $time");
263 if ( $as_due_date ) {
264 $time_format eq '12hr'
265 ? $date =~ s| 11:59 PM$||
266 : $date =~ s| 23:59$||;
272 =head2 format_sqldatetime
274 $string = format_sqldatetime( $string_as_returned_from_db );
276 a convenience routine for calling dt_from_string and formatting the result
277 with output_pref as it is a frequent activity in scripts
281 sub format_sqldatetime {
283 my $force_pref = shift; # if testing we want to override Context
284 my $force_time = shift;
285 my $dateonly = shift;
287 if ( defined $str && $str =~ m/^\d{4}-\d{2}-\d{2}/ ) {
288 my $dt = dt_from_string( $str, 'sql' );
289 return q{} unless $dt;
290 $dt->truncate( to => 'minute' );
293 dateformat => $force_pref,
294 timeformat => $force_time,
295 dateonly => $dateonly