4 INSERT INTO config.upgrade_log (version) VALUES ('0201'); -- miker
6 CREATE OR REPLACE FUNCTION biblio.extract_metabib_field_entry ( rid BIGINT, default_joiner TEXT ) RETURNS SETOF metabib.field_entry_template AS $func$
8 bib biblio.record_entry%ROWTYPE;
9 idx config.metabib_field%ROWTYPE;
10 xfrm config.xml_transform%ROWTYPE;
16 joiner TEXT := default_joiner; -- XXX will index defs supply a joiner?
17 output_row metabib.field_entry_template%ROWTYPE;
21 SELECT INTO bib * FROM biblio.record_entry WHERE id = rid;
23 -- Loop over the indexing entries
24 FOR idx IN SELECT * FROM config.metabib_field ORDER BY format LOOP
26 SELECT INTO xfrm * from config.xml_transform WHERE name = idx.format;
28 -- See if we can skip the XSLT ... it's expensive
29 IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
30 -- Can't skip the transform
31 IF xfrm.xslt <> '---' THEN
32 transformed_xml := oils_xslt_process(bib.marc,xfrm.xslt);
34 transformed_xml := bib.marc;
37 prev_xfrm := xfrm.name;
40 xml_node_list := oils_xpath( idx.xpath, transformed_xml, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]] );
43 FOR xml_node IN SELECT x FROM explode_array(xml_node_list) AS x LOOP
44 CONTINUE WHEN xml_node !~ E'^\\s*<';
45 IF raw_text IS NOT NULL THEN
46 raw_text := raw_text || joiner;
48 raw_text := COALESCE(raw_text,'') || ARRAY_TO_STRING(oils_xpath( '//text()', REGEXP_REPLACE(xml_node,'&(?!amp;)','&','g')), ' ');
51 CONTINUE WHEN raw_text IS NULL;
53 output_row.field_class = idx.field_class;
54 output_row.field = idx.id;
55 output_row.source = rid;
56 output_row.value = BTRIM(REGEXP_REPLACE(raw_text, E'\\s+', ' ', 'g'));
58 RETURN NEXT output_row;
63 $func$ LANGUAGE PLPGSQL;