From 7ea1d71af1711081196a8fd6a0a0f8e7877c8878 Mon Sep 17 00:00:00 2001
From: Galen Charlton <gmc@esilibrary.com>
Date: Thu, 14 Mar 2013 17:17:54 -0400
Subject: [PATCH] LP#1155329: better enforce cat.bib.use_id_for_tcn

Restore previous behavior to the maintain_901() trigger
function so that bib records that are loaded without
explicitly setting the TCN have it set to the bib ID
when the cat.bib.use_id_for_tcn global flag is set, rather
than 'AUTOGENERATED-xxx'.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Signed-off-by: Dan Scott <dscott@laurentian.ca>
---
 Open-ILS/src/sql/Pg/002.functions.config.sql  |  1 +
 .../XXXX.schema.enforce_use_id_for_tcn.sql    | 98 +++++++++++++++++++
 2 files changed, 99 insertions(+)
 create mode 100644 Open-ILS/src/sql/Pg/upgrade/XXXX.schema.enforce_use_id_for_tcn.sql

diff --git a/Open-ILS/src/sql/Pg/002.functions.config.sql b/Open-ILS/src/sql/Pg/002.functions.config.sql
index 47f97c315b..f481bab4d0 100644
--- a/Open-ILS/src/sql/Pg/002.functions.config.sql
+++ b/Open-ILS/src/sql/Pg/002.functions.config.sql
@@ -469,6 +469,7 @@ if ($schema eq 'biblio') {
     ");
     if (($id_as_tcn->{processed}) && $id_as_tcn->{rows}[0]->{enabled} eq 't') {
         $tcn_value = $_TD->{new}{id}; 
+        $_TD->{new}{tcn_value} = $tcn_value;
     }
 
     my $new_901 = MARC::Field->new("901", " ", " ",
diff --git a/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.enforce_use_id_for_tcn.sql b/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.enforce_use_id_for_tcn.sql
new file mode 100644
index 0000000000..87d74bd4ec
--- /dev/null
+++ b/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.enforce_use_id_for_tcn.sql
@@ -0,0 +1,98 @@
+CREATE OR REPLACE FUNCTION evergreen.maintain_901 () RETURNS TRIGGER AS $func$
+use strict;
+use MARC::Record;
+use MARC::File::XML (BinaryEncoding => 'UTF-8');
+use MARC::Charset;
+use Encode;
+use Unicode::Normalize;
+
+MARC::Charset->assume_unicode(1);
+
+my $schema = $_TD->{table_schema};
+my $marc = MARC::Record->new_from_xml($_TD->{new}{marc});
+
+my @old901s = $marc->field('901');
+$marc->delete_fields(@old901s);
+
+if ($schema eq 'biblio') {
+    my $tcn_value = $_TD->{new}{tcn_value};
+
+    # Set TCN value to record ID?
+    my $id_as_tcn = spi_exec_query("
+        SELECT enabled
+        FROM config.global_flag
+        WHERE name = 'cat.bib.use_id_for_tcn'
+    ");
+    if (($id_as_tcn->{processed}) && $id_as_tcn->{rows}[0]->{enabled} eq 't') {
+        $tcn_value = $_TD->{new}{id}; 
+        $_TD->{new}{tcn_value} = $tcn_value;
+    }
+
+    my $new_901 = MARC::Field->new("901", " ", " ",
+        "a" => $tcn_value,
+        "b" => $_TD->{new}{tcn_source},
+        "c" => $_TD->{new}{id},
+        "t" => $schema
+    );
+
+    if ($_TD->{new}{owner}) {
+        $new_901->add_subfields("o" => $_TD->{new}{owner});
+    }
+
+    if ($_TD->{new}{share_depth}) {
+        $new_901->add_subfields("d" => $_TD->{new}{share_depth});
+    }
+
+    $marc->append_fields($new_901);
+} elsif ($schema eq 'authority') {
+    my $new_901 = MARC::Field->new("901", " ", " ",
+        "c" => $_TD->{new}{id},
+        "t" => $schema,
+    );
+    $marc->append_fields($new_901);
+} elsif ($schema eq 'serial') {
+    my $new_901 = MARC::Field->new("901", " ", " ",
+        "c" => $_TD->{new}{id},
+        "t" => $schema,
+        "o" => $_TD->{new}{owning_lib},
+    );
+
+    if ($_TD->{new}{record}) {
+        $new_901->add_subfields("r" => $_TD->{new}{record});
+    }
+
+    $marc->append_fields($new_901);
+} else {
+    my $new_901 = MARC::Field->new("901", " ", " ",
+        "c" => $_TD->{new}{id},
+        "t" => $schema,
+    );
+    $marc->append_fields($new_901);
+}
+
+my $xml = $marc->as_xml_record();
+$xml =~ s/\n//sgo;
+$xml =~ s/^<\?xml.+\?\s*>//go;
+$xml =~ s/>\s+</></go;
+$xml =~ s/\p{Cc}//go;
+
+# Embed a version of OpenILS::Application::AppUtils->entityize()
+# to avoid having to set PERL5LIB for PostgreSQL as well
+
+# If we are going to convert non-ASCII characters to XML entities,
+# we had better be dealing with a UTF8 string to begin with
+$xml = decode_utf8($xml);
+
+$xml = NFC($xml);
+
+# Convert raw ampersands to entities
+$xml =~ s/&(?!\S+;)/&amp;/gso;
+
+# Convert Unicode characters to entities
+$xml =~ s/([\x{0080}-\x{fffd}])/sprintf('&#x%X;',ord($1))/sgoe;
+
+$xml =~ s/[\x00-\x1f]//go;
+$_TD->{new}{marc} = $xml;
+
+return "MODIFY";
+$func$ LANGUAGE PLPERLU;
-- 
2.43.2