+=item get_cdrs_for_update
+
+Returns (and SELECTs "FOR UPDATE") all unprocessed (freesidestatus NULL) CDR
+objects (see L<FS::cdr>) associated with this service.
+
+Currently CDRs are associated with svc_acct services via a DID in the
+username. This part is rather tenative and still subject to change...
+
+=cut
+
+sub get_cdrs_for_update {
+ my($self, %options) = @_;
+
+ my $default_prefix = $options{'default_prefix'};
+
+ #CDRs are now associated with svc_phone services via svc_phone.phonenum
+ #return () unless $self->svc_x->isa('FS::svc_phone');
+ return () unless $self->part_svc->svcdb eq 'svc_phone';
+ my $number = $self->svc_x->phonenum;
+
+ my @cdrs =
+ qsearch( {
+ 'table' => 'cdr',
+ 'hashref' => { 'freesidestatus' => '',
+ 'charged_party' => $number
+ },
+ 'extra_sql' => 'FOR UPDATE',
+ } );
+
+ if ( length($default_prefix) ) {
+ push @cdrs,
+ qsearch( {
+ 'table' => 'cdr',
+ 'hashref' => { 'freesidestatus' => '',
+ 'charged_party' => "$default_prefix$number",
+ },
+ 'extra_sql' => 'FOR UPDATE',
+ } );
+ }
+
+ @cdrs;
+}
+