1 package SL::DB::Helper::TransNumberGenerator;
5 use parent qw(Exporter);
6 our @EXPORT = qw(get_next_trans_number create_trans_number);
9 use List::Util qw(max);
11 use SL::PrefixedNumber;
14 SL::DB::Manager::Order->type_filter($_[0]);
18 SL::DB::Manager::DeliveryOrder->type_filter($_[0]);
22 SL::DB::Manager::Part->type_filter($_[0]);
25 my %specs = ( ar => { number_column => 'invnumber', },
26 sales_quotation => { number_column => 'quonumber', number_range_column => 'sqnumber', scoping => \&oe_scoping, },
27 sales_order => { number_column => 'ordnumber', number_range_column => 'sonumber', scoping => \&oe_scoping, },
28 request_quotation => { number_column => 'quonumber', number_range_column => 'rfqnumber', scoping => \&oe_scoping, },
29 purchase_order => { number_column => 'ordnumber', number_range_column => 'ponumber', scoping => \&oe_scoping, },
30 sales_delivery_order => { number_column => 'donumber', number_range_column => 'sdonumber', scoping => \&do_scoping, },
31 purchase_delivery_order => { number_column => 'donumber', number_range_column => 'pdonumber', scoping => \&do_scoping, },
32 customer => { number_column => 'customernumber', number_range_column => 'customernumber', },
33 vendor => { number_column => 'vendornumber', number_range_column => 'vendornumber', },
34 part => { number_column => 'partnumber', number_range_column => 'articlenumber', scoping => \&parts_scoping, },
35 service => { number_column => 'partnumber', number_range_column => 'servicenumber', scoping => \&parts_scoping, },
36 assembly => { number_column => 'partnumber', number_range_column => 'assemblynumber', scoping => \&parts_scoping, },
39 sub get_next_trans_number {
40 my ($self, %params) = @_;
42 my $spec_type = $specs{ $self->meta->table } ? $self->meta->table : $self->type;
43 my $spec = $specs{ $spec_type } || croak("Unsupported class " . ref($self));
45 my $number_column = $spec->{number_column};
46 my $number = $self->$number_column;
47 my $number_range_column = $spec->{number_range_column} || $number_column;
48 my $scoping_conditions = $spec->{scoping};
49 my $fill_holes_in_range = !$spec->{keep_holes_in_range};
51 return $number if $self->id && $number;
53 require SL::DB::Default;
54 require SL::DB::Business;
56 my %conditions = ( query => [ $scoping_conditions ? $scoping_conditions->($spec_type) : () ] );
57 my %conditions_for_in_use = ( query => [ $scoping_conditions ? $scoping_conditions->($spec_type) : () ] );
60 if ($spec_type =~ m{^(?:customer|vendor)$}) {
61 $business = $self->business_id ? SL::DB::Business->new(id => $self->business_id)->load : $self->business;
62 if ($business && (($business->customernumberinit // '') ne '')) {
63 $number_range_column = 'customernumberinit';
64 push @{ $conditions{query} }, ( business_id => $business->id );
68 push @{ $conditions{query} }, ( business_id => undef );
73 # Lock both the table where the new number is stored and the range
74 # table. The storage table has to be locked first in order to
75 # prevent deadlocks as the legacy code in SL/TransNumber.pm locks it
78 # For the storage table we have to use a full lock in order to
79 # prevent insertion of new entries while this routine is still
80 # working. For the range table we only need a row-level lock,
81 # therefore we're re-loading the row.
82 $self->db->dbh->do("LOCK " . $self->meta->table) || die $self->db->dbh->errstr;
84 my %numbers_in_use = map { ( $_->$number_column => 1 ) } @{ $self->_get_manager_class->get_all(%conditions_for_in_use) };
86 my $range_table = ($business ? $business : SL::DB::Default->get)->load(for_update => 1);
88 my $start_number = $range_table->$number_range_column;
89 $start_number = $range_table->articlenumber if ($number_range_column eq 'assemblynumber') && (length($start_number) < 1);
90 my $sequence = SL::PrefixedNumber->new(number => $start_number // 0);
92 if (!$fill_holes_in_range) {
93 my @numbers = map { $_->$number_column } @{ $self->_get_manager_class->get_all(%conditions) };
94 $sequence->set_to_max(@numbers) ;
97 my $new_number = $sequence->get_next;
98 $new_number = $sequence->get_next while $numbers_in_use{$new_number};
100 $range_table->update_attributes($number_range_column => $new_number) if $params{update_defaults};
101 $self->$number_column($new_number) if $params{update_record};
106 sub create_trans_number {
107 my ($self, %params) = @_;
109 return $self->get_next_trans_number(update_defaults => 1, update_record => 1, %params);
122 SL::DB::Helper::TransNumberGenerator - A mixin for creating unique record numbers
128 =item C<get_next_trans_number %params>
130 Generates a new unique record number for the mixing class. Each record
131 type (invoices, sales quotations, purchase orders etc) has its own
132 number range. Within these ranges all numbers should be unique. The
133 table C<defaults> contains the last record number assigned for all of
136 This function contains hard-coded knowledge about the modules it can
137 be mixed into. This way the models themselves don't have to contain
138 boilerplate code for the details like the the number range column's
139 name in the C<defaults> table.
141 The process of creating a unique number involves the following steps:
143 At first all existing record numbers for the current type are
144 retrieved from the database as well as the last number assigned from
145 the table C<defaults>.
147 The next step is separating the number range from C<defaults> into two
148 parts: an optional non-numeric prefix and its numeric suffix. The
149 prefix, if present, will be kept intact.
151 Now the number itself is increased as often as neccessary to create a
152 unique one by comparing the generated numbers with the existing ones
153 retrieved in the first step. In this step gaps in the assigned numbers
154 are filled for all currently supported tables.
156 After creating the unique record number this function can update
157 C<$self> and the C<defaults> table if requested. This is controlled
158 with the following parameters:
162 =item * C<update_record>
164 Determines whether or not C<$self>'s record number field is set to the
165 newly generated number. C<$self> will not be saved even if this
166 parameter is trueish. Defaults to false.
168 =item * C<update_defaults>
170 Determines whether or not the number range value in the C<defaults>
171 table should be updated. Unlike C<$self> the C<defaults> table will be
172 saved. Defaults to false.
176 Always returns the newly generated number. This function cannot fail
177 and return a value. If it fails then it is due to exceptions.
179 =item C<create_trans_number %params>
181 Calls and returns L</get_next_trans_number> with the parameters
182 C<update_defaults = 1> and C<update_record = 1>. C<%params> is passed
189 This mixin exports all of its functions: L</get_next_trans_number> and
190 L</create_trans_number>. There are no optional exports.
198 Moritz Bunkus E<lt>m.bunkus@linet-services.deE<gt>