- $conn->log("irspy_test", "Successfully retrieved a $syn record");
- if (0) {
- print STDERR "Hits: ", $rs->size(), "\n";
- print STDERR "Syntax: ", $syn, "\n";
- my $record = _fetch_record($rs, 0, $syn);
- print STDERR $record->render();
+ # Due to a bug in ZOOM-C (as of YAZ 2.1.38 of 31st October 2006),
+ # diagnostics in Present responses are not reported, so that we
+ # always end up in this callback rather than in error() where we
+ # should be. Luckily, we can test whether the retrieval really
+ # did work by rendering the record, which will yield an undefined
+ # result if the fetch failed.
+ my $record = _fetch_record($rs, 0, $syn);
+ my $text = $record->render();
+ if (defined $text) {
+ $conn->log("irspy_test", "Successfully retrieved a $syn record");
+ if (0) {
+ print STDERR "Hits: ", $rs->size(), "\n";
+ print STDERR "Syntax: ", $syn, "\n";
+ print STDERR $text;
+ }
+ } else {
+ $conn->log("irspy_test", "Retrieval of $syn record failed: ",
+ "exception unavailable");