change texas-style tax exemptions to be against a specific line item rather than just general per-customer, for later tracking and tax reporting. fix 1969/1970 exemptions for one-off charges

1 files changed, 135 insertions, 0 deletions

diff --git a/FS/FS/cust_tax_exempt_pkg.pm b/FS/FS/cust_tax_exempt_pkg.pm
new file mode 100644
index 0000000..7193ace
--- /dev/null
+++ b/FS/FS/cust_tax_exempt_pkg.pm
@@ -0,0 +1,135 @@
+package FS::cust_tax_exempt_pkg;
+
+use strict;
+use vars qw( @ISA );
+use FS::Record qw( qsearch qsearchs );
+use FS::cust_bill_pkg;
+use FS::cust_main_county;
+
+@ISA = qw(FS::Record);
+
+=head1 NAME
+
+FS::cust_tax_exempt_pkg - Object methods for cust_tax_exempt_pkg records
+
+=head1 SYNOPSIS
+
+  use FS::cust_tax_exempt_pkg;
+
+  $record = new FS::cust_tax_exempt_pkg \%hash;
+  $record = new FS::cust_tax_exempt_pkg { 'column' => 'value' };
+
+  $error = $record->insert;
+
+  $error = $new_record->replace($old_record);
+
+  $error = $record->delete;
+
+  $error = $record->check;
+
+=head1 DESCRIPTION
+
+An FS::cust_tax_exempt_pkg object represents a record of a customer tax
+exemption.  Currently this is only used for "texas tax".  FS::cust_tax_exempt
+inherits from FS::Record.  The following fields are currently supported:
+
+=over 4
+
+=item exemptpkgnum - primary key
+
+=item billpkgnum - invoice line item (see L<FS::cust_bill_pkg>)
+
+=item taxnum - tax rate (see L<FS::cust_main_county>)
+
+=item year
+
+=item month
+
+=item amount
+
+=back
+
+=head1 METHODS
+
+=over 4
+
+=item new HASHREF
+
+Creates a new exemption record.  To add the example to the database, see
+L<"insert">.
+
+Note that this stores the hash reference, not a distinct copy of the hash it
+points to.  You can ask the object for a copy with the I<hash> method.
+
+=cut
+
+# the new method can be inherited from FS::Record, if a table method is defined
+
+sub table { 'cust_tax_exempt_pkg'; }
+
+=item insert
+
+Adds this record to the database.  If there is an error, returns the error,
+otherwise returns false.
+
+=cut
+
+# the insert method can be inherited from FS::Record
+
+=item delete
+
+Delete this record from the database.
+
+=cut
+
+# the delete method can be inherited from FS::Record
+
+=item replace OLD_RECORD
+
+Replaces the OLD_RECORD with this one in the database.  If there is an error,
+returns the error, otherwise returns false.
+
+=cut
+
+# the replace method can be inherited from FS::Record
+
+=item check
+
+Checks all fields to make sure this is a valid example.  If there is
+an error, returns the error, otherwise returns false.  Called by the insert
+and replace methods.
+
+=cut
+
+# the check method should currently be supplied - FS::Record contains some
+# data checking routines
+
+sub check {
+  my $self = shift;
+
+  $self->ut_numbern('exemptnum')
+#    || $self->ut_foreign_key('custnum', 'cust_main', 'custnum')
+    || $self->ut_foreign_key('billpkgnum', 'cust_bill_pkg', 'billpkgnum')
+    || $self->ut_foreign_key('taxnum', 'cust_main_county', 'taxnum')
+    || $self->ut_number('year') #check better
+    || $self->ut_number('month') #check better
+    || $self->ut_money('amount')
+    || $self->SUPER::check
+  ;
+}
+
+=back
+
+=head1 BUGS
+
+Texas tax is still a royal pain in the ass.
+
+=head1 SEE ALSO
+
+L<FS::cust_main_county>, L<FS::cust_bill_pkg>, L<FS::Record>, schema.html from
+the base documentation.
+
+=cut
+
+1;
+