+sub existing_search {
+ my $self = shift;
+
+ my @unique = qw( data_vendor geocode );
+ push @unique, qw( state country )
+ if $self->data_vendor eq 'compliance_solutions';
+
+ qsearchs( 'tax_rate_location',
+ { disabled => '',
+ map { $_ => $self->$_ } @unique
+ }
+ );
+}
+