From 981153060286dae7e27b368dc38e63832df52d51 Mon Sep 17 00:00:00 2001
From: dbwells <dbwells@dcc99617-32d9-48b4-a31d-7c20da2025e4>
Date: Thu, 24 Feb 2011 20:01:36 +0000
Subject: [PATCH] Fix regex in maintain 901c

The previous regex would delete any 901 fields *and* any fields which followed.  Since the 901 is typically the last field, this problem didn't surface during testing.


git-svn-id: svn://svn.open-ils.org/ILS/branches/rel_2_1@19535 dcc99617-32d9-48b4-a31d-7c20da2025e4
---
 Open-ILS/src/sql/Pg/002.functions.config.sql       |  2 +-
 Open-ILS/src/sql/Pg/002.schema.config.sql          |  2 +-
 .../0491.function.maintain_901_fix_regex.sql       | 68 ++++++++++++++++++++++
 3 files changed, 70 insertions(+), 2 deletions(-)
 create mode 100644 Open-ILS/src/sql/Pg/upgrade/0491.function.maintain_901_fix_regex.sql

diff --git a/Open-ILS/src/sql/Pg/002.functions.config.sql b/Open-ILS/src/sql/Pg/002.functions.config.sql
index ec2dbf268c..77ca8e2511 100644
--- a/Open-ILS/src/sql/Pg/002.functions.config.sql
+++ b/Open-ILS/src/sql/Pg/002.functions.config.sql
@@ -424,7 +424,7 @@ DECLARE
     use_id_for_tcn BOOLEAN;
 BEGIN
     -- Remove any existing 901 fields before we insert the authoritative one
-    NEW.marc := REGEXP_REPLACE(NEW.marc, E'<datafield\s*[^<>]*?\s*tag="901".+?</datafield>', '', 'g');
+    NEW.marc := REGEXP_REPLACE(NEW.marc, E'<datafield[^>]*?tag="901".+?</datafield>', '', 'g');
 
     IF TG_TABLE_SCHEMA = 'biblio' THEN
         -- Set TCN value to record ID?
diff --git a/Open-ILS/src/sql/Pg/002.schema.config.sql b/Open-ILS/src/sql/Pg/002.schema.config.sql
index 294f2a4837..fb6d0c7fda 100644
--- a/Open-ILS/src/sql/Pg/002.schema.config.sql
+++ b/Open-ILS/src/sql/Pg/002.schema.config.sql
@@ -70,7 +70,7 @@ CREATE TABLE config.upgrade_log (
     install_date    TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
 );
 
-INSERT INTO config.upgrade_log (version) VALUES ('0490'); -- miker
+INSERT INTO config.upgrade_log (version) VALUES ('0491'); -- dbwells
 
 CREATE TABLE config.bib_source (
 	id		SERIAL	PRIMARY KEY,
diff --git a/Open-ILS/src/sql/Pg/upgrade/0491.function.maintain_901_fix_regex.sql b/Open-ILS/src/sql/Pg/upgrade/0491.function.maintain_901_fix_regex.sql
new file mode 100644
index 0000000000..14c4ce3678
--- /dev/null
+++ b/Open-ILS/src/sql/Pg/upgrade/0491.function.maintain_901_fix_regex.sql
@@ -0,0 +1,68 @@
+BEGIN;
+
+INSERT INTO config.upgrade_log (version) VALUES ('0491'); -- dbwells
+
+CREATE OR REPLACE FUNCTION maintain_901 () RETURNS TRIGGER AS $func$
+DECLARE
+    use_id_for_tcn BOOLEAN;
+BEGIN
+    -- Remove any existing 901 fields before we insert the authoritative one
+    NEW.marc := REGEXP_REPLACE(NEW.marc, E'<datafield[^>]*?tag="901".+?</datafield>', '', 'g');
+
+    IF TG_TABLE_SCHEMA = 'biblio' THEN
+        -- Set TCN value to record ID?
+        SELECT enabled FROM config.global_flag INTO use_id_for_tcn
+            WHERE name = 'cat.bib.use_id_for_tcn';
+
+        IF use_id_for_tcn = 't' THEN
+            NEW.tcn_value := NEW.id;
+        END IF;
+
+        NEW.marc := REGEXP_REPLACE(
+            NEW.marc,
+            E'(</(?:[^:]*?:)?record>)',
+            E'<datafield tag="901" ind1=" " ind2=" ">' ||
+                '<subfield code="a">' || NEW.tcn_value || E'</subfield>' ||
+                '<subfield code="b">' || NEW.tcn_source || E'</subfield>' ||
+                '<subfield code="c">' || NEW.id || E'</subfield>' ||
+                '<subfield code="t">' || TG_TABLE_SCHEMA || E'</subfield>' ||
+                CASE WHEN NEW.owner IS NOT NULL THEN '<subfield code="o">' || NEW.owner || E'</subfield>' ELSE '' END ||
+                CASE WHEN NEW.share_depth IS NOT NULL THEN '<subfield code="d">' || NEW.share_depth || E'</subfield>' ELSE '' END ||
+             E'</datafield>\\1'
+        );
+    ELSIF TG_TABLE_SCHEMA = 'authority' THEN
+        NEW.marc := REGEXP_REPLACE(
+            NEW.marc,
+            E'(</(?:[^:]*?:)?record>)',
+            E'<datafield tag="901" ind1=" " ind2=" ">' ||
+                '<subfield code="c">' || NEW.id || E'</subfield>' ||
+                '<subfield code="t">' || TG_TABLE_SCHEMA || E'</subfield>' ||
+             E'</datafield>\\1'
+        );
+    ELSIF TG_TABLE_SCHEMA = 'serial' THEN
+        NEW.marc := REGEXP_REPLACE(
+            NEW.marc,
+            E'(</(?:[^:]*?:)?record>)',
+            E'<datafield tag="901" ind1=" " ind2=" ">' ||
+                '<subfield code="c">' || NEW.id || E'</subfield>' ||
+                '<subfield code="t">' || TG_TABLE_SCHEMA || E'</subfield>' ||
+                '<subfield code="o">' || NEW.owning_lib || E'</subfield>' ||
+                CASE WHEN NEW.record IS NOT NULL THEN '<subfield code="r">' || NEW.record || E'</subfield>' ELSE '' END ||
+             E'</datafield>\\1'
+        );
+    ELSE
+        NEW.marc := REGEXP_REPLACE(
+            NEW.marc,
+            E'(</(?:[^:]*?:)?record>)',
+            E'<datafield tag="901" ind1=" " ind2=" ">' ||
+                '<subfield code="c">' || NEW.id || E'</subfield>' ||
+                '<subfield code="t">' || TG_TABLE_SCHEMA || E'</subfield>' ||
+             E'</datafield>\\1'
+        );
+    END IF;
+
+    RETURN NEW;
+END;
+$func$ LANGUAGE PLPGSQL;
+
+COMMIT;
-- 
2.11.0