Avoid reading marc_tag_structure for each biblo record to
transform by XSLT. Not totaly useless on OPAC result page.
Should be done via application variables rather than
request variable, but this is another story.
Signed-off-by: Galen Charlton <galen.charlton@liblime.com>
+# Cache for tagfield-tagsubfield to decode per framework.
+# Should be preferably be placed in Koha-core...
+my %authval_per_framework;
+
sub getAuthorisedValues4MARCSubfields {
my ($frameworkcode) = @_;
sub getAuthorisedValues4MARCSubfields {
my ($frameworkcode) = @_;
- my @results;
- my $dbh = C4::Context->dbh;
- my $sth = $dbh->prepare("SELECT DISTINCT tagfield,tagsubfield FROM marc_subfield_structure WHERE authorised_value IS NOT NULL AND authorised_value!='' AND frameworkcode=?");
- $sth->execute($frameworkcode);
- while (my $result = $sth->fetchrow_hashref()) {
- push @results, $result;
+ unless ( $authval_per_framework{ $frameworkcode } ) {
+ my @results;
+ my $dbh = C4::Context->dbh;
+ my $sth = $dbh->prepare("SELECT DISTINCT tagfield, tagsubfield
+ FROM marc_subfield_structure
+ WHERE authorised_value IS NOT NULL
+ AND authorised_value!=''
+ AND frameworkcode=?");
+ $sth->execute( $frameworkcode );
+ while ( my $result = $sth->fetchrow_hashref() ) {
+ push ( @results, $result );
+ }
+ $authval_per_framework{ $frameworkcode } = \@results;
+ return $authval_per_framework{ $frameworkcode };