+=item process_district_update CLASS ID
+
+Queueable function to update the tax district code using the selected method
+(config 'tax_district_method'). CLASS is either 'FS::cust_main' or
+'FS::cust_location'; ID is the key in one of those tables.
+
+=cut
+
+sub process_district_update {
+ my $class = shift;
+ my $id = shift;
+
+ local $DEBUG = 1;
+
+ eval "use FS::Misc::Geo qw(get_district); use FS::Conf; use $class;";
+ die $@ if $@;
+ die "$class has no location data" if !$class->can('location_hash');
+
+ my $conf = FS::Conf->new;
+ my $method = $conf->config('tax_district_method')
+ or return; #nothing to do if null
+ my $self = $class->by_key($id) or die "object $id not found";
+
+ # dies on error, fine
+ my $tax_info = get_district({ $self->location_hash }, $method);
+
+ if ( $tax_info ) {
+ $self->set('district', $tax_info->{'district'} );
+ my $error = $self->replace;
+ die $error if $error;
+
+ my %hash = map { $_ => $tax_info->{$_} }
+ qw( district city county state country );
+ $hash{'taxname'} = '';
+
+ my $old = qsearchs('cust_main_county', \%hash);
+ if ( $old ) {
+ my $new = new FS::cust_main_county { $old->hash, %$tax_info };
+ warn "updating tax rate for district ".$tax_info->{'district'} if $DEBUG;
+ $error = $new->replace($old);
+ }
+ else {
+ my $new = new FS::cust_main_county $tax_info;
+ warn "creating tax rate for district ".$tax_info->{'district'} if $DEBUG;
+ $error = $new->insert;
+ }
+ die $error if $error;
+
+ }
+ return;
+}
+