1 package SL::DB::Helper::AccountingPeriod;
5 use parent qw(Exporter);
7 our @EXPORT = qw(get_balance_starting_date);
11 sub get_balance_starting_date {
12 my ($self,$asofdate) = @_;
14 $asofdate ||= DateTime->today_local;
16 unless ( ref $asofdate eq 'DateTime' ) {
17 $asofdate = $::locale->parse_date_to_object($asofdate);
20 my $dbh = $::form->get_standard_dbh;
22 my $startdate_method = $::instance_conf->get_balance_startdate_method;
24 # We could use the following objects to determine the starting date for
25 # calculating the balance from asofdate (the reference date for the balance):
26 # * start_of_year - 1.1., no deviating fiscal year supported
27 # * closed_to - all transactions since the books were last closed
28 # * last_ob - all transactions since last opening balance transaction (usually 1.1.)
29 # * mindate - all transactions in database
31 my $start_of_year = $asofdate->clone();
32 $start_of_year->set_day(1);
33 $start_of_year->set_month(1);
35 # closedto assumes that we only close the books at the end of a fiscal year,
36 # never during the fiscal year. If this assumption is valid closedto should
37 # also work for deviating fiscal years. But as the trial balance (SuSa)
38 # doesn't yet deal with deviating fiscal years, and it is useful to also close
39 # the books after a month has been exported via DATEV, this method of
40 # determining the starting date isn't recommended and is not the default.
42 my $closedto = $::instance_conf->get_closedto;
44 $closedto = $::locale->parse_date_to_object($closedto);
45 $closedto->subtract(years => 1) while ($asofdate - $closedto)->is_negative;
46 $closedto->add(days => 1);
49 my ($query, $startdate, $last_ob, $mindate);
50 $query = qq|select max(transdate) from acc_trans where ob_transaction is true and transdate <= ?|;
51 ($last_ob) = selectrow_query($::form, $dbh, $query, $::locale->format_date(\%::myconfig, $asofdate));
52 $last_ob = $::locale->parse_date_to_object($last_ob) if $last_ob;
54 $query = qq|select min(transdate) from acc_trans|;
55 ($mindate) = selectrow_query($::form, $dbh, $query);
56 $mindate = $::locale->parse_date_to_object($mindate);
58 # the default method is to use all transactions ($mindate)
60 if ( $startdate_method eq 'closed_to' and $closedto ) {
61 # if no closedto is configured use default
62 return $::locale->format_date(\%::myconfig, $closedto);
64 } elsif ( $startdate_method eq 'start_of_year' ) {
66 return $::locale->format_date(\%::myconfig, $start_of_year);
68 } elsif ( $startdate_method eq 'all_transactions' ) {
70 return $::locale->format_date(\%::myconfig, $mindate);
72 } elsif ( $startdate_method eq 'last_ob_or_all_transactions' and $last_ob ) {
73 # use default if there are no ob transactions
75 return $::locale->format_date(\%::myconfig, $last_ob);
77 } elsif ( $startdate_method eq 'last_ob_or_start_of_year' ) {
80 return $::locale->format_date(\%::myconfig, $last_ob);
82 return $::locale->format_date(\%::myconfig, $start_of_year);
86 # default action, also used for closedto and last_ob_or_all_transactions if
87 # there are no valid dates
89 return $::locale->format_date(\%::myconfig, $mindate);
103 SL::DB::Helper::AccountingPeriod - Helper functions for calculating dates relative to the financial year
109 =item C<get_balance_starting_date $date>
111 Given a date this method calculates and returns the starting date of the
112 financial period relative to that date, according to the configured
113 balance_startdate_method in the client configuration. The returned date is
114 locale-formatted and can be used for SQL queries.
116 If $date isn't a DateTime object a date string is assumed, which then gets
119 If no argument is passed the current day is assumed as default.
129 G. Richardson E<lt>information@kivitendo-premium.deE<gt>