_fetch_record() now sets the temporary value of the

[irspy-moved-to-github.git] / lib / ZOOM / IRSpy / Test / Record / Fetch.pm

diff --git a/lib/ZOOM/IRSpy/Test/Record/Fetch.pm b/lib/ZOOM/IRSpy/Test/Record/Fetch.pm
index 87c04bd..79e6fa2 100644 (file)
--- a/lib/ZOOM/IRSpy/Test/Record/Fetch.pm
+++ b/lib/ZOOM/IRSpy/Test/Record/Fetch.pm
@@ -12,7 +12,6 @@ our @ISA = qw(ZOOM::IRSpy::Test);
 
 our $max_timeout_errors = $ZOOM::IRSpy::max_timeout_errors;
 
-# These queries 
 my @queries = (
               "\@attr 1=4 mineral",
               "\@attr 1=4 computer",
@@ -26,9 +25,6 @@ sub start {
     my $class = shift();
     my($conn) = @_;
 
-    # Here I want to get a use attribute from the session, which we've
-    # managed to search for in the Search/Bib1 or Search/Dan1 tests.
-    # But how?  So far we search for title: 1=4
     $conn->irspy_search_pqf($queries[0], { queryindex => 0 }, {},
                            ZOOM::Event::ZEND, \&completed_search,
                            exception => \&completed_search);
@@ -76,7 +72,7 @@ sub completed_search {
                    'librismarc',
                    'mab',
                    'normarc',
-#                   'opac',
+                   'opac',
                    'picamarc',
                    'rusmarc',
                    'summary',
@@ -108,7 +104,7 @@ sub record {
     my $syn = $udata->{'syntax'};
     my $rs = $task->{rs};
 
-    my $record = _fetch_record($rs, 0, $syn);
+    my $record = _fetch_record($conn, $rs, 0, $syn);
     my $ok = 0;
     if (!$record || $record->error()) {
        $conn->log("irspy_test", "retrieval of $syn record failed: ",
@@ -136,13 +132,28 @@ sub record {
 }
 
 
+# By the time this is called, the record has already been physically
+# fetched from the server in the correct syntax, and placed in the
+# result-set's cache.  But in order to actually get hold of it from
+# that cache, we need to set the record-syntax again, to the same
+# value, otherwise ZOOM will make a fresh request.
+#
+# ZOOM::IRSpy::Task::Retrieve sets options into the connection object
+# rather than the result-set object (because it's a subclass of
+# ZOOM::IRSpy::Task, which doesn't know about result-sets).  Therefore
+# it's important that this function also set into the connection:
+# otherwise any value subsequently set into the connection by
+# ZOOM::IRSpy::Task::Retrieve will be ignored by ZOOM-C operations, as
+# the value previously set into the result-set will override it.
+# (This was the very subtle cause of bug #3534).
+#
 sub _fetch_record {
-    my($rs, $index0, $syntax) = @_;
+    my($conn, $rs, $index0, $syntax) = @_;
 
-    my $oldSyntax = $rs->option(preferredRecordSyntax => $syntax);
+    my $oldSyntax = $conn->option(preferredRecordSyntax => $syntax);
     my $record = $rs->record(0);
     $oldSyntax = "" if !defined $oldSyntax;
-    $rs->option(preferredRecordSyntax => $oldSyntax);
+    $conn->option(preferredRecordSyntax => $oldSyntax);
 
     return $record;
 }