+=item cust_pkg_detail [ DETAILTYPE ]
+
+Returns any customer package details for this package (see
+L<FS::cust_pkg_detail>).
+
+DETAILTYPE can be set to "I" for invoice details or "C" for comments.
+
+=cut
+
+sub cust_pkg_detail {
+ my $self = shift;
+ my %hash = ( 'pkgnum' => $self->pkgnum );
+ $hash{detailtype} = shift if @_;
+ qsearch({
+ 'table' => 'cust_pkg_detail',
+ 'hashref' => \%hash,
+ 'order_by' => 'ORDER BY weight, pkgdetailnum',
+ });
+}
+
+=item set_cust_pkg_detail DETAILTYPE [ DETAIL, DETAIL, ... ]
+
+Sets customer package details for this package (see L<FS::cust_pkg_detail>).
+
+DETAILTYPE can be set to "I" for invoice details or "C" for comments.
+
+If there is an error, returns the error, otherwise returns false.
+
+=cut
+
+sub set_cust_pkg_detail {
+ my( $self, $detailtype, @details ) = @_;
+
+ local $SIG{HUP} = 'IGNORE';
+ local $SIG{INT} = 'IGNORE';
+ local $SIG{QUIT} = 'IGNORE';
+ local $SIG{TERM} = 'IGNORE';
+ local $SIG{TSTP} = 'IGNORE';
+ local $SIG{PIPE} = 'IGNORE';
+
+ my $oldAutoCommit = $FS::UID::AutoCommit;
+ local $FS::UID::AutoCommit = 0;
+ my $dbh = dbh;
+
+ foreach my $current ( $self->cust_pkg_detail($detailtype) ) {
+ my $error = $current->delete;
+ if ( $error ) {
+ $dbh->rollback if $oldAutoCommit;
+ return "error removing old detail: $error";
+ }
+ }
+
+ foreach my $detail ( @details ) {
+ my $cust_pkg_detail = new FS::cust_pkg_detail {
+ 'pkgnum' => $self->pkgnum,
+ 'detailtype' => $detailtype,
+ 'detail' => $detail,
+ };
+ my $error = $cust_pkg_detail->insert;
+ if ( $error ) {
+ $dbh->rollback if $oldAutoCommit;
+ return "error adding new detail: $error";
+ }
+
+ }
+
+ $dbh->commit or die $dbh->errstr if $oldAutoCommit;
+ '';
+
+}
+