1 package FS::cust_bill_ApplicationCommon;
4 use vars qw( @ISA $DEBUG $me );
5 use List::Util qw(min);
6 use FS::Schema qw( dbdef );
7 use FS::Record qw( qsearch qsearchs dbh );
9 @ISA = qw( FS::Record );
12 $me = '[FS::cust_bill_ApplicationCommon]';
16 FS::cust_bill_ApplicationCommon - Base class for bill application classes
20 use FS::cust_bill_ApplicationCommon;
22 @ISA = qw( FS::cust_bill_ApplicationCommon );
24 sub _app_source_name { 'payment'; }
25 sub _app_source_table { 'cust_pay'; }
26 sub _app_lineitem_breakdown_table { 'cust_bill_pay_pkg'; }
30 FS::cust_bill_ApplicationCommon is intended as a base class for classes which
31 represent application of things to invoices, currently payments
32 (see L<FS::cust_bill_pay>) or credits (see L<FS::cust_credit_bill>).
45 local $SIG{HUP} = 'IGNORE';
46 local $SIG{INT} = 'IGNORE';
47 local $SIG{QUIT} = 'IGNORE';
48 local $SIG{TERM} = 'IGNORE';
49 local $SIG{TSTP} = 'IGNORE';
50 local $SIG{PIPE} = 'IGNORE';
52 my $oldAutoCommit = $FS::UID::AutoCommit;
53 local $FS::UID::AutoCommit = 0;
56 my $error = $self->SUPER::insert(@_)
57 || $self->apply_to_lineitems;
59 $dbh->rollback if $oldAutoCommit;
63 $dbh->commit or die $dbh->errstr if $oldAutoCommit;
76 local $SIG{HUP} = 'IGNORE';
77 local $SIG{INT} = 'IGNORE';
78 local $SIG{QUIT} = 'IGNORE';
79 local $SIG{TERM} = 'IGNORE';
80 local $SIG{TSTP} = 'IGNORE';
81 local $SIG{PIPE} = 'IGNORE';
83 my $oldAutoCommit = $FS::UID::AutoCommit;
84 local $FS::UID::AutoCommit = 0;
87 foreach my $app ( $self->lineitem_applications ) {
88 my $error = $app->delete;
90 $dbh->rollback if $oldAutoCommit;
95 my $error = $self->SUPER::delete(@_);
97 $dbh->rollback if $oldAutoCommit;
101 $dbh->commit or die $dbh->errstr if $oldAutoCommit;
107 =item apply_to_lineitems
109 Auto-applies this invoice application to specific line items, if possible.
113 sub apply_to_lineitems {
118 my $conf = new FS::Conf;
120 local $SIG{HUP} = 'IGNORE';
121 local $SIG{INT} = 'IGNORE';
122 local $SIG{QUIT} = 'IGNORE';
123 local $SIG{TERM} = 'IGNORE';
124 local $SIG{TSTP} = 'IGNORE';
125 local $SIG{PIPE} = 'IGNORE';
127 my $oldAutoCommit = $FS::UID::AutoCommit;
128 local $FS::UID::AutoCommit = 0;
131 my @open = $self->cust_bill->open_cust_bill_pkg; #FOR UPDATE...?
132 @open = grep { $_->pkgnum == $self->pkgnum } @open
133 if $conf->exists('pkg-balances') && $self->pkgnum;
134 warn "$me ". scalar(@open). " open line items for invoice ".
135 $self->cust_bill->invnum. ": ". join(', ', @open). "\n"
138 $total += $_->setup + $_->recur foreach @open;
139 $total = sprintf('%.2f', $total);
141 if ( $self->amount > $total ) {
142 $dbh->rollback if $oldAutoCommit;
143 return "Can't apply a ". $self->_app_source_name. ' of $'. $self->amount.
144 " greater than the remaining owed on line items (\$$total)";
148 # - one lineitem (a simple special case of:)
149 # - amount is for whole invoice (well, all of remaining lineitem links)
150 if ( $self->amount == $total ) {
152 warn "$me application amount covers remaining balance of invoice in full;".
153 "applying to those lineitems\n"
156 #@apply = map { [ $_, $_->amount ]; } @open;
157 @apply = map { [ $_, $_->setup || $_->recur ]; } @open;
161 #slightly magic case:
162 # - amount exactly and uniquely matches a single open lineitem
163 # (you must be trying to pay or credit that item, then)
165 my @same = grep { $_->setup == $self->amount
166 || $_->recur == $self->amount
169 if ( scalar(@same) == 1 ) {
170 warn "$me application amount exactly and uniquely matches one lineitem;".
171 " applying to that lineitem\n"
173 @apply = map { [ $_, $self->amount ]; } @same
180 warn "$me applying amount based on package weights\n"
184 # - apply based on weights...
186 my $weight_col = $self->_app_part_pkg_weight_column;
187 my @openweight = map {
189 my $cust_pkg = $open->cust_pkg;
192 ? ( $cust_pkg->part_pkg->$weight_col() || 0 )
193 : 0; #default or per-tax weight?
199 my @weights = sort { $b <=> $a } # highest weight first
200 grep { ! $saw{$_}++ } # want a list of unique weights
204 my $remaining_amount = $self->amount;
205 foreach my $weight ( @weights ) {
207 #i hate it when my schwartz gets tangled
208 my @items = map { $_->[0] } grep { $weight == $_->[1] } @openweight;
211 foreach my $item (@items) { $itemtotal += $item->setup || $item->recur; }
212 my $applytotal = min( $itemtotal, $remaining_amount );
213 $remaining_amount -= $applytotal;
215 warn "$me applying $applytotal ($remaining_amount remaining)".
216 " to ". scalar(@items). " lineitems with weight $weight\n"
219 #if some items are less than applytotal/num_items, then apply then in full
224 #no, not sprintf("%.2f",
225 # we want this rounded DOWN for purposes of checking for line items
226 # less than it, we don't want .66666 becoming .67 and causing this
227 # to trigger when it shouldn't
228 my $applyeach = int( 100 * $applytotal / scalar(@items) ) / 100;
231 foreach my $item ( @items ) {
232 my $itemamount = $item->setup || $item->recur;
233 if ( $itemamount < $applyeach ) {
234 warn "$me applying full $itemamount".
235 " to small line item (cust_bill_pkg ". $item->billpkgnum. ")\n"
237 push @apply, [ $item, $itemamount ];
238 $applytotal -= $itemamount;
241 push @newitems, $item;
246 } while ( $lessflag );
248 #and now that we've fallen out of the loop, distribute the rest equally...
250 # should cust_bill_pay_pkg and cust_credit_bill_pkg amount columns
251 # become real instead of numeric(10,2) ??? no..
252 my $applyeach = sprintf("%.2f", $applytotal / scalar(@items) );
254 my @equi_apply = map { [ $_, $applyeach ] } @items;
256 # or should we futz with pennies instead? yes, bah!
258 sprintf('%.0f', 100 * ( $applytotal - $applyeach * scalar(@items) ) );
259 $diff = 0 if $diff eq '-0'; #yay ieee fp
260 if ( abs($diff) > scalar(@items) ) {
261 #we must have done something really wrong, the difference is more than
263 $dbh->rollback if $oldAutoCommit;
264 return 'Error distributing pennies applying '. $self->_app_source_name.
265 " - can't distribute difference of $diff pennies".
266 ' among '. scalar(@items). ' line items';
269 warn "$me futzing with $diff pennies difference\n"
273 while ( $diff != 0 && $futz < scalar(@equi_apply) ) {
275 $equi_apply[$futz++]->[1] += .01;
277 } elsif ( $diff < 0 ) {
278 $equi_apply[$futz++]->[1] -= .01;
281 die "guru exception #5 (in fortran tongue the answer)";
285 if ( sprintf('%.0f', $diff ) ) {
286 $dbh->rollback if $oldAutoCommit;
287 return "couldn't futz with pennies enough: still $diff left";
291 warn "$me applying ". $_->[1].
292 " to line item (cust_bill_pkg ". $_->[0]->billpkgnum. ")\n"
297 push @apply, @equi_apply;
299 #$remaining_amount -= $applytotal;
300 last unless $remaining_amount;
306 # do the applicaiton(s)
307 my $table = $self->lineitem_breakdown_table;
308 my $source_key = dbdef->table($self->table)->primary_key;
310 foreach my $apply ( @apply ) {
311 my ( $cust_bill_pkg, $amount ) = @$apply;
313 my $application = "FS::$table"->new( {
314 $source_key => $self->$source_key(),
315 'billpkgnum' => $cust_bill_pkg->billpkgnum,
316 'amount' => sprintf('%.2f', $amount),
317 'setuprecur' => ( $cust_bill_pkg->setup > 0 ? 'setup' : 'recur' ),
318 'sdate' => $cust_bill_pkg->sdate,
319 'edate' => $cust_bill_pkg->edate,
321 my $error = $application->insert;
323 $dbh->rollback if $oldAutoCommit;
328 #everything should always be applied to line items in full now... sanity check
329 $applied = sprintf('%.2f', $applied);
330 unless ( $applied == $self->amount ) {
331 $dbh->rollback if $oldAutoCommit;
332 return 'Error applying '. $self->_app_source_name. ' of $'. $self->amount.
333 ' to line items - only $'. $applied. ' was applied.';
336 $dbh->commit or die $dbh->errstr if $oldAutoCommit;
341 =item lineitem_applications
343 Returns all the specific line item applications for this invoice application.
347 sub lineitem_applications {
349 my $primary_key = dbdef->table($self->table)->primary_key;
351 'table' => $self->lineitem_breakdown_table,
352 'hashref' => { $primary_key => $self->$primary_key() },
359 Returns the invoice (see L<FS::cust_bill>)
365 qsearchs( 'cust_bill', { 'invnum' => $self->invnum } );
368 =item applied_to_invoice
370 Returns a string representing the invoice (see L<FS::cust_bill>), for example:
371 "applied to Invoice #54 (3/20/2008)"
375 sub applied_to_invoice {
377 'applied to '. $self->cust_bill->invnum_date_pretty;
380 =item lineitem_breakdown_table
384 sub lineitem_breakdown_table {
386 $self->_load_table($self->_app_lineitem_breakdown_table);
390 my( $self, $table ) = @_;
391 eval "use FS::$table";
402 L<FS::cust_bill_pay> and L<FS::cust_bill_pay_pkg>,
403 L<FS::cust_credit_bill> and L<FS::cust_credit_bill_pkg>