From: miker <miker@dcc99617-32d9-48b4-a31d-7c20da2025e4>
Date: Thu, 18 Mar 2010 01:07:29 +0000 (+0000)
Subject: accounting for a difference between the behaviour of XPATH in pg 8.3 and 8.4
X-Git-Url: https://old-git.evergreen-ils.org/?a=commitdiff_plain;h=e2b2931fba2dabf2e71270ade023f0e2b7d2a702;p=contrib%2FConifer.git

accounting for a difference between the behaviour of XPATH in pg 8.3 and 8.4

git-svn-id: svn://svn.open-ils.org/ILS/trunk@15902 dcc99617-32d9-48b4-a31d-7c20da2025e4
---

diff --git a/Open-ILS/src/sql/Pg/002.schema.config.sql b/Open-ILS/src/sql/Pg/002.schema.config.sql
index 9c9d41e737..a1a924e8d6 100644
--- a/Open-ILS/src/sql/Pg/002.schema.config.sql
+++ b/Open-ILS/src/sql/Pg/002.schema.config.sql
@@ -58,7 +58,7 @@ CREATE TABLE config.upgrade_log (
     install_date    TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
 );
 
-INSERT INTO config.upgrade_log (version) VALUES ('0200'); -- miker
+INSERT INTO config.upgrade_log (version) VALUES ('0201'); -- miker
 
 CREATE TABLE config.bib_source (
 	id		SERIAL	PRIMARY KEY,
diff --git a/Open-ILS/src/sql/Pg/030.schema.metabib.sql b/Open-ILS/src/sql/Pg/030.schema.metabib.sql
index f51a0abd11..5e665b82ea 100644
--- a/Open-ILS/src/sql/Pg/030.schema.metabib.sql
+++ b/Open-ILS/src/sql/Pg/030.schema.metabib.sql
@@ -260,6 +260,7 @@ BEGIN
 
 		raw_text := NULL;
 		FOR xml_node IN SELECT x FROM explode_array(xml_node_list) AS x LOOP
+			CONTINUE WHEN xml_node !~ E'^\\s*<';
 			IF raw_text IS NOT NULL THEN
 				raw_text := raw_text || joiner;
 			END IF;
diff --git a/Open-ILS/src/sql/Pg/upgrade/0201.schema.in-db-ingest-PG84-difference.sql b/Open-ILS/src/sql/Pg/upgrade/0201.schema.in-db-ingest-PG84-difference.sql
new file mode 100644
index 0000000000..0a394813a4
--- /dev/null
+++ b/Open-ILS/src/sql/Pg/upgrade/0201.schema.in-db-ingest-PG84-difference.sql
@@ -0,0 +1,66 @@
+
+BEGIN;
+
+INSERT INTO config.upgrade_log (version) VALUES ('0201'); -- miker
+
+CREATE OR REPLACE FUNCTION biblio.extract_metabib_field_entry ( rid BIGINT, default_joiner TEXT ) RETURNS SETOF metabib.field_entry_template AS $func$
+DECLARE
+    bib     biblio.record_entry%ROWTYPE;
+    idx     config.metabib_field%ROWTYPE;
+    xfrm        config.xml_transform%ROWTYPE;
+    prev_xfrm   TEXT;
+    transformed_xml TEXT;
+    xml_node    TEXT;
+    xml_node_list   TEXT[];
+    raw_text    TEXT;
+    joiner      TEXT := default_joiner; -- XXX will index defs supply a joiner?
+    output_row  metabib.field_entry_template%ROWTYPE;
+BEGIN
+
+    -- Get the record
+    SELECT INTO bib * FROM biblio.record_entry WHERE id = rid;
+
+    -- Loop over the indexing entries
+    FOR idx IN SELECT * FROM config.metabib_field ORDER BY format LOOP
+
+        SELECT INTO xfrm * from config.xml_transform WHERE name = idx.format;
+
+        -- See if we can skip the XSLT ... it's expensive
+        IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
+            -- Can't skip the transform
+            IF xfrm.xslt <> '---' THEN
+                transformed_xml := oils_xslt_process(bib.marc,xfrm.xslt);
+            ELSE
+                transformed_xml := bib.marc;
+            END IF;
+
+            prev_xfrm := xfrm.name;
+        END IF;
+
+        xml_node_list := oils_xpath( idx.xpath, transformed_xml, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]] );
+
+        raw_text := NULL;
+        FOR xml_node IN SELECT x FROM explode_array(xml_node_list) AS x LOOP
+            CONTINUE WHEN xml_node !~ E'^\\s*<';
+            IF raw_text IS NOT NULL THEN
+                raw_text := raw_text || joiner;
+            END IF;
+            raw_text := COALESCE(raw_text,'') || ARRAY_TO_STRING(oils_xpath( '//text()', REGEXP_REPLACE(xml_node,'&(?!amp;)','&amp;','g')), ' ');
+        END LOOP;
+
+        CONTINUE WHEN raw_text IS NULL;
+
+        output_row.field_class = idx.field_class;
+        output_row.field = idx.id;
+        output_row.source = rid;
+        output_row.value = BTRIM(REGEXP_REPLACE(raw_text, E'\\s+', ' ', 'g'));
+
+        RETURN NEXT output_row;
+
+    END LOOP;
+
+END;
+$func$ LANGUAGE PLPGSQL;
+
+COMMIT;
+