=item C<attributes>
An optional hash reference. If it exists then it is passed to C<new>
-allowing the caller to set certain attributes for the new delivery
-order.
+allowing the caller to set certain attributes for the new invoice.
+For example to set a different transdate (default is the current date),
+call the method like this:
+
+ my %params;
+ $params{attributes}{transdate} = '28.08.2015';
+ $invoice = SL::DB::Invoice->new_from($self, %params)->post || die;
=back
=back
+=head1 TODO
+ As explained in the new_from example, it is possible to set transdate to a new value.
+ From a user / programm point of view transdate is more than holy and there should be
+ some validity checker available for controller code. At least the same logic like in
+ Form.pm from ar.pl should be available:
+ # see old stuff ar.pl post
+ #$form->error($locale->text('Cannot post transaction above the maximum future booking date!'))
+ # if ($form->date_max_future($transdate, \%myconfig));
+ #$form->error($locale->text('Cannot post transaction for a closed period!')) if ($form->date_closed($form->{"transdate"}, \%myconfig));
+
=head1 AUTHOR
Moritz Bunkus E<lt>m.bunkus@linet-services.deE<gt>