2 * Copyright (C) 2004-2008 Georgia Public Library Service
3 * Copyright (C) 2007-2008 Equinox Software, Inc.
4 * Mike Rylander <miker@esilibrary.com>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
18 DROP SCHEMA IF EXISTS metabib CASCADE;
21 CREATE SCHEMA metabib;
23 CREATE TABLE metabib.metarecord (
24 id BIGSERIAL PRIMARY KEY,
25 fingerprint TEXT NOT NULL,
29 CREATE INDEX metabib_metarecord_master_record_idx ON metabib.metarecord (master_record);
30 CREATE INDEX metabib_metarecord_fingerprint_idx ON metabib.metarecord (fingerprint);
32 CREATE TABLE metabib.identifier_field_entry (
33 id BIGSERIAL PRIMARY KEY,
34 source BIGINT NOT NULL,
37 index_vector tsvector NOT NULL
39 CREATE TRIGGER metabib_identifier_field_entry_fti_trigger
40 BEFORE UPDATE OR INSERT ON metabib.identifier_field_entry
41 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('identifier');
43 CREATE INDEX metabib_identifier_field_entry_index_vector_idx ON metabib.identifier_field_entry USING GIST (index_vector);
44 CREATE INDEX metabib_identifier_field_entry_value_idx ON metabib.identifier_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
45 CREATE INDEX metabib_identifier_field_entry_source_idx ON metabib.identifier_field_entry (source);
48 CREATE TABLE metabib.title_field_entry (
49 id BIGSERIAL PRIMARY KEY,
50 source BIGINT NOT NULL,
53 index_vector tsvector NOT NULL
55 CREATE TRIGGER metabib_title_field_entry_fti_trigger
56 BEFORE UPDATE OR INSERT ON metabib.title_field_entry
57 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('title');
59 CREATE INDEX metabib_title_field_entry_index_vector_idx ON metabib.title_field_entry USING GIST (index_vector);
60 CREATE INDEX metabib_title_field_entry_value_idx ON metabib.title_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
61 CREATE INDEX metabib_title_field_entry_source_idx ON metabib.title_field_entry (source);
64 CREATE TABLE metabib.author_field_entry (
65 id BIGSERIAL PRIMARY KEY,
66 source BIGINT NOT NULL,
69 index_vector tsvector NOT NULL
71 CREATE TRIGGER metabib_author_field_entry_fti_trigger
72 BEFORE UPDATE OR INSERT ON metabib.author_field_entry
73 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('author');
75 CREATE INDEX metabib_author_field_entry_index_vector_idx ON metabib.author_field_entry USING GIST (index_vector);
76 CREATE INDEX metabib_author_field_entry_value_idx ON metabib.author_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
77 CREATE INDEX metabib_author_field_entry_source_idx ON metabib.author_field_entry (source);
80 CREATE TABLE metabib.subject_field_entry (
81 id BIGSERIAL PRIMARY KEY,
82 source BIGINT NOT NULL,
85 index_vector tsvector NOT NULL
87 CREATE TRIGGER metabib_subject_field_entry_fti_trigger
88 BEFORE UPDATE OR INSERT ON metabib.subject_field_entry
89 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('subject');
91 CREATE INDEX metabib_subject_field_entry_index_vector_idx ON metabib.subject_field_entry USING GIST (index_vector);
92 CREATE INDEX metabib_subject_field_entry_value_idx ON metabib.subject_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
93 CREATE INDEX metabib_subject_field_entry_source_idx ON metabib.subject_field_entry (source);
96 CREATE TABLE metabib.keyword_field_entry (
97 id BIGSERIAL PRIMARY KEY,
98 source BIGINT NOT NULL,
101 index_vector tsvector NOT NULL
103 CREATE TRIGGER metabib_keyword_field_entry_fti_trigger
104 BEFORE UPDATE OR INSERT ON metabib.keyword_field_entry
105 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('keyword');
107 CREATE INDEX metabib_keyword_field_entry_index_vector_idx ON metabib.keyword_field_entry USING GIST (index_vector);
108 CREATE INDEX metabib_keyword_field_entry_value_idx ON metabib.keyword_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
109 CREATE INDEX metabib_keyword_field_entry_source_idx ON metabib.keyword_field_entry (source);
112 CREATE TABLE metabib.series_field_entry (
113 id BIGSERIAL PRIMARY KEY,
114 source BIGINT NOT NULL,
117 index_vector tsvector NOT NULL
119 CREATE TRIGGER metabib_series_field_entry_fti_trigger
120 BEFORE UPDATE OR INSERT ON metabib.series_field_entry
121 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('series');
123 CREATE INDEX metabib_series_field_entry_index_vector_idx ON metabib.series_field_entry USING GIST (index_vector);
124 CREATE INDEX metabib_series_field_entry_value_idx ON metabib.series_field_entry (SUBSTRING(value,1,1024)) WHERE index_vector = ''::TSVECTOR;
125 CREATE INDEX metabib_series_field_entry_source_idx ON metabib.series_field_entry (source);
128 CREATE TABLE metabib.facet_entry (
129 id BIGSERIAL PRIMARY KEY,
130 source BIGINT NOT NULL,
134 CREATE INDEX metabib_facet_entry_field_idx ON metabib.facet_entry (field);
135 CREATE INDEX metabib_facet_entry_value_idx ON metabib.facet_entry (SUBSTRING(value,1,1024));
136 CREATE INDEX metabib_facet_entry_source_idx ON metabib.facet_entry (source);
138 CREATE TABLE metabib.browse_entry (
139 id BIGSERIAL PRIMARY KEY,
141 index_vector tsvector
143 CREATE INDEX metabib_browse_entry_index_vector_idx ON metabib.browse_entry USING GIN (index_vector);
144 CREATE TRIGGER metabib_browse_entry_fti_trigger
145 BEFORE INSERT OR UPDATE ON metabib.browse_entry
146 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('keyword');
149 CREATE TABLE metabib.browse_entry_def_map (
150 id BIGSERIAL PRIMARY KEY,
151 entry BIGINT REFERENCES metabib.browse_entry (id),
152 def INT REFERENCES config.metabib_field (id),
153 source BIGINT REFERENCES biblio.record_entry (id)
155 CREATE INDEX browse_entry_def_map_def_idx ON metabib.browse_entry_def_map (def);
156 CREATE INDEX browse_entry_def_map_entry_idx ON metabib.browse_entry_def_map (entry);
157 CREATE INDEX browse_entry_def_map_source_idx ON metabib.browse_entry_def_map (source);
161 CREATE OR REPLACE FUNCTION metabib.facet_normalize_trigger () RETURNS TRIGGER AS $$
166 facet_text := NEW.value;
169 SELECT n.func AS func,
170 n.param_count AS param_count,
172 FROM config.index_normalizer n
173 JOIN config.metabib_field_index_norm_map m ON (m.norm = n.id)
174 WHERE m.field = NEW.field AND m.pos < 0
177 EXECUTE 'SELECT ' || normalizer.func || '(' ||
178 quote_literal( facet_text ) ||
180 WHEN normalizer.param_count > 0
181 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
188 NEW.value = facet_text;
194 CREATE TRIGGER facet_normalize_tgr
195 BEFORE UPDATE OR INSERT ON metabib.facet_entry
196 FOR EACH ROW EXECUTE PROCEDURE metabib.facet_normalize_trigger();
198 CREATE OR REPLACE FUNCTION evergreen.facet_force_nfc() RETURNS TRIGGER AS $$
200 NEW.value := force_unicode_normal_form(NEW.value,'NFC');
205 CREATE TRIGGER facet_force_nfc_tgr
206 BEFORE UPDATE OR INSERT ON metabib.facet_entry
207 FOR EACH ROW EXECUTE PROCEDURE evergreen.facet_force_nfc();
209 CREATE TABLE metabib.record_attr (
210 id BIGINT PRIMARY KEY REFERENCES biblio.record_entry (id) ON DELETE CASCADE,
211 attrs HSTORE NOT NULL DEFAULT ''::HSTORE
213 CREATE INDEX metabib_svf_attrs_idx ON metabib.record_attr USING GIST (attrs);
214 CREATE INDEX metabib_svf_date1_idx ON metabib.record_attr ((attrs->'date1'));
215 CREATE INDEX metabib_svf_dates_idx ON metabib.record_attr ((attrs->'date1'),(attrs->'date2'));
217 -- Back-compat view ... we're moving to an HSTORE world
218 CREATE TYPE metabib.rec_desc_type AS (
236 CREATE VIEW metabib.rec_descriptor AS
239 (populate_record(NULL::metabib.rec_desc_type, attrs)).*
240 FROM metabib.record_attr;
242 -- Use a sequence that matches previous version, for easier upgrading.
243 CREATE SEQUENCE metabib.full_rec_id_seq;
245 CREATE TABLE metabib.real_full_rec (
246 id BIGINT NOT NULL DEFAULT NEXTVAL('metabib.full_rec_id_seq'::REGCLASS),
247 record BIGINT NOT NULL,
248 tag CHAR(3) NOT NULL,
253 index_vector tsvector NOT NULL
255 ALTER TABLE metabib.real_full_rec ADD PRIMARY KEY (id);
257 CREATE INDEX metabib_full_rec_tag_subfield_idx ON metabib.real_full_rec (tag,subfield);
258 CREATE INDEX metabib_full_rec_value_idx ON metabib.real_full_rec (substring(value,1,1024));
259 /* Enable LIKE to use an index for database clusters with locales other than C or POSIX */
260 CREATE INDEX metabib_full_rec_value_tpo_index ON metabib.real_full_rec (substring(value,1,1024) text_pattern_ops);
261 CREATE INDEX metabib_full_rec_record_idx ON metabib.real_full_rec (record);
262 CREATE INDEX metabib_full_rec_index_vector_idx ON metabib.real_full_rec USING GIST (index_vector);
263 CREATE INDEX metabib_full_rec_isxn_caseless_idx
264 ON metabib.real_full_rec (LOWER(value))
265 WHERE tag IN ('020', '022', '024');
266 -- This next index might fully supplant the one above, but leaving both for now.
267 -- (they are not too large)
268 -- The reason we need this index is to ensure that the query parser always
269 -- prefers this index over the simpler tag/subfield index, as this greatly
270 -- increases Vandelay overlay speed for these identifiers, especially when
271 -- a record has many of these fields (around > 4-6 seems like the cutoff
272 -- on at least one PG9.1 system)
273 -- A similar index could be added for other fields (e.g. 010), but one should
274 -- leave out the LOWER() in all other cases.
275 -- TODO: verify whether we can discard the non tag/subfield/substring version
276 -- above (metabib_full_rec_isxn_caseless_idx)
277 CREATE INDEX metabib_full_rec_02x_tag_subfield_lower_substring
278 ON metabib.real_full_rec (tag, subfield, LOWER(substring(value, 1, 1024)))
279 WHERE tag IN ('020', '022', '024');
282 CREATE TRIGGER metabib_full_rec_fti_trigger
283 BEFORE UPDATE OR INSERT ON metabib.real_full_rec
284 FOR EACH ROW EXECUTE PROCEDURE oils_tsearch2('default');
286 CREATE OR REPLACE VIEW metabib.full_rec AS
293 SUBSTRING(value,1,1024) AS value,
295 FROM metabib.real_full_rec;
297 CREATE OR REPLACE RULE metabib_full_rec_insert_rule
298 AS ON INSERT TO metabib.full_rec
300 INSERT INTO metabib.real_full_rec VALUES (
301 COALESCE(NEW.id, NEXTVAL('metabib.full_rec_id_seq'::REGCLASS)),
311 CREATE OR REPLACE RULE metabib_full_rec_update_rule
312 AS ON UPDATE TO metabib.full_rec
314 UPDATE metabib.real_full_rec SET
320 subfield = NEW.subfield,
322 index_vector = NEW.index_vector
325 CREATE OR REPLACE RULE metabib_full_rec_delete_rule
326 AS ON DELETE TO metabib.full_rec
328 DELETE FROM metabib.real_full_rec WHERE id = OLD.id;
330 CREATE TABLE metabib.metarecord_source_map (
331 id BIGSERIAL PRIMARY KEY,
332 metarecord BIGINT NOT NULL,
333 source BIGINT NOT NULL
335 CREATE INDEX metabib_metarecord_source_map_metarecord_idx ON metabib.metarecord_source_map (metarecord);
336 CREATE INDEX metabib_metarecord_source_map_source_record_idx ON metabib.metarecord_source_map (source);
338 CREATE TYPE metabib.field_entry_template AS (
349 CREATE OR REPLACE FUNCTION biblio.extract_metabib_field_entry ( rid BIGINT, default_joiner TEXT ) RETURNS SETOF metabib.field_entry_template AS $func$
351 bib biblio.record_entry%ROWTYPE;
352 idx config.metabib_field%ROWTYPE;
353 xfrm config.xml_transform%ROWTYPE;
355 transformed_xml TEXT;
357 xml_node_list TEXT[];
362 joiner TEXT := default_joiner; -- XXX will index defs supply a joiner?
363 output_row metabib.field_entry_template%ROWTYPE;
367 SELECT INTO bib * FROM biblio.record_entry WHERE id = rid;
369 -- Loop over the indexing entries
370 FOR idx IN SELECT * FROM config.metabib_field ORDER BY format LOOP
372 SELECT INTO xfrm * from config.xml_transform WHERE name = idx.format;
374 -- See if we can skip the XSLT ... it's expensive
375 IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
376 -- Can't skip the transform
377 IF xfrm.xslt <> '---' THEN
378 transformed_xml := oils_xslt_process(bib.marc,xfrm.xslt);
380 transformed_xml := bib.marc;
383 prev_xfrm := xfrm.name;
386 xml_node_list := oils_xpath( idx.xpath, transformed_xml, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]] );
389 FOR xml_node IN SELECT x FROM unnest(xml_node_list) AS x LOOP
390 CONTINUE WHEN xml_node !~ E'^\\s*<';
392 curr_text := ARRAY_TO_STRING(
393 oils_xpath( '//text()',
394 REGEXP_REPLACE( -- This escapes all &s not followed by "amp;". Data ise returned from oils_xpath (above) in UTF-8, not entity encoded
395 REGEXP_REPLACE( -- This escapes embeded <s
397 $re$(>[^<]+)(<)([^>]+<)$re$,
409 CONTINUE WHEN curr_text IS NULL OR curr_text = '';
411 IF raw_text IS NOT NULL THEN
412 raw_text := raw_text || joiner;
415 raw_text := COALESCE(raw_text,'') || curr_text;
417 -- autosuggest/metabib.browse_entry
418 IF idx.browse_field THEN
420 IF idx.browse_xpath IS NOT NULL AND idx.browse_xpath <> '' THEN
421 browse_text := oils_xpath_string( idx.browse_xpath, xml_node, joiner, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]] );
423 browse_text := curr_text;
426 output_row.field_class = idx.field_class;
427 output_row.field = idx.id;
428 output_row.source = rid;
429 output_row.value = BTRIM(REGEXP_REPLACE(browse_text, E'\\s+', ' ', 'g'));
431 output_row.browse_field = TRUE;
432 RETURN NEXT output_row;
433 output_row.browse_field = FALSE;
436 -- insert raw node text for faceting
437 IF idx.facet_field THEN
439 IF idx.facet_xpath IS NOT NULL AND idx.facet_xpath <> '' THEN
440 facet_text := oils_xpath_string( idx.facet_xpath, xml_node, joiner, ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]] );
442 facet_text := curr_text;
445 output_row.field_class = idx.field_class;
446 output_row.field = -1 * idx.id;
447 output_row.source = rid;
448 output_row.value = BTRIM(REGEXP_REPLACE(facet_text, E'\\s+', ' ', 'g'));
450 output_row.facet_field = TRUE;
451 RETURN NEXT output_row;
452 output_row.facet_field = FALSE;
457 CONTINUE WHEN raw_text IS NULL OR raw_text = '';
459 -- insert combined node text for searching
460 IF idx.search_field THEN
461 output_row.field_class = idx.field_class;
462 output_row.field = idx.id;
463 output_row.source = rid;
464 output_row.value = BTRIM(REGEXP_REPLACE(raw_text, E'\\s+', ' ', 'g'));
466 output_row.search_field = TRUE;
467 RETURN NEXT output_row;
474 $func$ LANGUAGE PLPGSQL;
476 CREATE OR REPLACE FUNCTION metabib.reingest_metabib_field_entries( bib_id BIGINT, skip_facet BOOL DEFAULT FALSE, skip_browse BOOL DEFAULT FALSE, skip_search BOOL DEFAULT FALSE ) RETURNS VOID AS $func$
479 ind_data metabib.field_entry_template%ROWTYPE;
480 mbe_row metabib.browse_entry%ROWTYPE;
483 PERFORM * FROM config.internal_flag WHERE name = 'ingest.assume_inserts_only' AND enabled;
485 IF NOT skip_search THEN
486 FOR fclass IN SELECT * FROM config.metabib_class LOOP
487 -- RAISE NOTICE 'Emptying out %', fclass.name;
488 EXECUTE $$DELETE FROM metabib.$$ || fclass.name || $$_field_entry WHERE source = $$ || bib_id;
491 IF NOT skip_facet THEN
492 DELETE FROM metabib.facet_entry WHERE source = bib_id;
494 IF NOT skip_browse THEN
495 DELETE FROM metabib.browse_entry_def_map WHERE source = bib_id;
499 FOR ind_data IN SELECT * FROM biblio.extract_metabib_field_entry( bib_id ) LOOP
500 IF ind_data.field < 0 THEN
501 ind_data.field = -1 * ind_data.field;
504 IF ind_data.facet_field AND NOT skip_facet THEN
505 INSERT INTO metabib.facet_entry (field, source, value)
506 VALUES (ind_data.field, ind_data.source, ind_data.value);
509 IF ind_data.browse_field AND NOT skip_browse THEN
510 -- A caveat about this SELECT: this should take care of replacing
511 -- old mbe rows when data changes, but not if normalization (by
512 -- which I mean specifically the output of
513 -- evergreen.oils_tsearch2()) changes. It may or may not be
514 -- expensive to add a comparison of index_vector to index_vector
515 -- to the WHERE clause below.
516 SELECT INTO mbe_row * FROM metabib.browse_entry WHERE value = ind_data.value;
518 mbe_id := mbe_row.id;
520 INSERT INTO metabib.browse_entry (value) VALUES
521 (metabib.browse_normalize(ind_data.value, ind_data.field));
522 mbe_id := CURRVAL('metabib.browse_entry_id_seq'::REGCLASS);
525 INSERT INTO metabib.browse_entry_def_map (entry, def, source)
526 VALUES (mbe_id, ind_data.field, ind_data.source);
529 IF ind_data.search_field AND NOT skip_search THEN
531 INSERT INTO metabib.$$ || ind_data.field_class || $$_field_entry (field, source, value)
533 quote_literal(ind_data.field) || $$, $$ ||
534 quote_literal(ind_data.source) || $$, $$ ||
535 quote_literal(ind_data.value) ||
543 $func$ LANGUAGE PLPGSQL;
545 -- default to a space joiner
546 CREATE OR REPLACE FUNCTION biblio.extract_metabib_field_entry ( BIGINT ) RETURNS SETOF metabib.field_entry_template AS $func$
547 SELECT * FROM biblio.extract_metabib_field_entry($1, ' ');
550 CREATE OR REPLACE FUNCTION authority.flatten_marc ( rid BIGINT ) RETURNS SETOF authority.full_rec AS $func$
552 auth authority.record_entry%ROWTYPE;
553 output authority.full_rec%ROWTYPE;
556 SELECT INTO auth * FROM authority.record_entry WHERE id = rid;
558 FOR field IN SELECT * FROM vandelay.flatten_marc( auth.marc ) LOOP
559 output.record := rid;
560 output.ind1 := field.ind1;
561 output.ind2 := field.ind2;
562 output.tag := field.tag;
563 output.subfield := field.subfield;
564 output.value := field.value;
569 $func$ LANGUAGE PLPGSQL;
571 CREATE OR REPLACE FUNCTION biblio.flatten_marc ( rid BIGINT ) RETURNS SETOF metabib.full_rec AS $func$
573 bib biblio.record_entry%ROWTYPE;
574 output metabib.full_rec%ROWTYPE;
577 SELECT INTO bib * FROM biblio.record_entry WHERE id = rid;
579 FOR field IN SELECT * FROM vandelay.flatten_marc( bib.marc ) LOOP
580 output.record := rid;
581 output.ind1 := field.ind1;
582 output.ind2 := field.ind2;
583 output.tag := field.tag;
584 output.subfield := field.subfield;
585 output.value := field.value;
590 $func$ LANGUAGE PLPGSQL;
592 CREATE OR REPLACE FUNCTION vandelay.marc21_record_type( marc TEXT ) RETURNS config.marc21_rec_type_map AS $func$
599 retval config.marc21_rec_type_map%ROWTYPE;
601 ldr := oils_xpath_string( '//*[local-name()="leader"]', marc );
603 IF ldr IS NULL OR ldr = '' THEN
604 SELECT * INTO retval FROM config.marc21_rec_type_map WHERE code = 'BKS';
608 SELECT * INTO tval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'Type' LIMIT 1; -- They're all the same
609 SELECT * INTO bval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'BLvl' LIMIT 1; -- They're all the same
612 tval := SUBSTRING( ldr, tval_rec.start_pos + 1, tval_rec.length );
613 bval := SUBSTRING( ldr, bval_rec.start_pos + 1, bval_rec.length );
615 -- RAISE NOTICE 'type %, blvl %, ldr %', tval, bval, ldr;
617 SELECT * INTO retval FROM config.marc21_rec_type_map WHERE type_val LIKE '%' || tval || '%' AND blvl_val LIKE '%' || bval || '%';
620 IF retval.code IS NULL THEN
621 SELECT * INTO retval FROM config.marc21_rec_type_map WHERE code = 'BKS';
626 $func$ LANGUAGE PLPGSQL;
628 CREATE OR REPLACE FUNCTION biblio.marc21_record_type( rid BIGINT ) RETURNS config.marc21_rec_type_map AS $func$
629 SELECT * FROM vandelay.marc21_record_type( (SELECT marc FROM biblio.record_entry WHERE id = $1) );
632 CREATE OR REPLACE FUNCTION vandelay.marc21_extract_fixed_field( marc TEXT, ff TEXT ) RETURNS TEXT AS $func$
639 rtype := (vandelay.marc21_record_type( marc )).code;
640 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE fixed_field = ff AND rec_type = rtype ORDER BY tag DESC LOOP
641 IF ff_pos.tag = 'ldr' THEN
642 val := oils_xpath_string('//*[local-name()="leader"]', marc);
643 IF val IS NOT NULL THEN
644 val := SUBSTRING( val, ff_pos.start_pos + 1, ff_pos.length );
648 FOR tag_data IN SELECT value FROM UNNEST( oils_xpath( '//*[@tag="' || UPPER(ff_pos.tag) || '"]/text()', marc ) ) x(value) LOOP
649 val := SUBSTRING( tag_data.value, ff_pos.start_pos + 1, ff_pos.length );
653 val := REPEAT( ff_pos.default_val, ff_pos.length );
659 $func$ LANGUAGE PLPGSQL;
661 CREATE OR REPLACE FUNCTION biblio.marc21_extract_fixed_field( rid BIGINT, ff TEXT ) RETURNS TEXT AS $func$
662 SELECT * FROM vandelay.marc21_extract_fixed_field( (SELECT marc FROM biblio.record_entry WHERE id = $1), $2 );
665 -- CREATE TYPE biblio.record_ff_map AS (record BIGINT, ff_name TEXT, ff_value TEXT);
666 CREATE OR REPLACE FUNCTION vandelay.marc21_extract_all_fixed_fields( marc TEXT ) RETURNS SETOF biblio.record_ff_map AS $func$
671 output biblio.record_ff_map%ROWTYPE;
673 rtype := (vandelay.marc21_record_type( marc )).code;
675 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE rec_type = rtype ORDER BY tag DESC LOOP
676 output.ff_name := ff_pos.fixed_field;
677 output.ff_value := NULL;
679 IF ff_pos.tag = 'ldr' THEN
680 output.ff_value := oils_xpath_string('//*[local-name()="leader"]', marc);
681 IF output.ff_value IS NOT NULL THEN
682 output.ff_value := SUBSTRING( output.ff_value, ff_pos.start_pos + 1, ff_pos.length );
684 output.ff_value := NULL;
687 FOR tag_data IN SELECT value FROM UNNEST( oils_xpath( '//*[@tag="' || UPPER(ff_pos.tag) || '"]/text()', marc ) ) x(value) LOOP
688 output.ff_value := SUBSTRING( tag_data, ff_pos.start_pos + 1, ff_pos.length );
689 IF output.ff_value IS NULL THEN output.ff_value := REPEAT( ff_pos.default_val, ff_pos.length ); END IF;
691 output.ff_value := NULL;
699 $func$ LANGUAGE PLPGSQL;
701 CREATE OR REPLACE FUNCTION biblio.marc21_extract_all_fixed_fields( rid BIGINT ) RETURNS SETOF biblio.record_ff_map AS $func$
702 SELECT $1 AS record, ff_name, ff_value FROM vandelay.marc21_extract_all_fixed_fields( (SELECT marc FROM biblio.record_entry WHERE id = $1) );
705 CREATE OR REPLACE FUNCTION biblio.marc21_physical_characteristics( rid BIGINT ) RETURNS SETOF biblio.marc21_physical_characteristics AS $func$
706 SELECT id, $1 AS record, ptype, subfield, value FROM vandelay.marc21_physical_characteristics( (SELECT marc FROM biblio.record_entry WHERE id = $1) );
709 CREATE OR REPLACE FUNCTION biblio.extract_quality ( marc TEXT, best_lang TEXT, best_type TEXT ) RETURNS INT AS $func$
722 IF marc IS NULL OR marc = '' THEN
726 -- First, the count of tags
727 qual := ARRAY_UPPER(oils_xpath('*[local-name()="datafield"]', marc), 1);
729 -- now go through a bunch of pain to get the record type
730 IF best_type IS NOT NULL THEN
731 ldr := (oils_xpath('//*[local-name()="leader"]/text()', marc))[1];
733 IF ldr IS NOT NULL THEN
734 SELECT * INTO tval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'Type' LIMIT 1; -- They're all the same
735 SELECT * INTO bval_rec FROM config.marc21_ff_pos_map WHERE fixed_field = 'BLvl' LIMIT 1; -- They're all the same
738 tval := SUBSTRING( ldr, tval_rec.start_pos + 1, tval_rec.length );
739 bval := SUBSTRING( ldr, bval_rec.start_pos + 1, bval_rec.length );
741 -- RAISE NOTICE 'type %, blvl %, ldr %', tval, bval, ldr;
743 SELECT * INTO type_map FROM config.marc21_rec_type_map WHERE type_val LIKE '%' || tval || '%' AND blvl_val LIKE '%' || bval || '%';
745 IF type_map.code IS NOT NULL THEN
746 IF best_type = type_map.code THEN
747 qual := qual + qual / 2;
750 FOR ff_pos IN SELECT * FROM config.marc21_ff_pos_map WHERE fixed_field = 'Lang' AND rec_type = type_map.code ORDER BY tag DESC LOOP
751 ff_tag_data := SUBSTRING((oils_xpath('//*[@tag="' || ff_pos.tag || '"]/text()',marc))[1], ff_pos.start_pos + 1, ff_pos.length);
752 IF ff_tag_data = best_lang THEN
760 -- Now look for some quality metrics
762 IF ARRAY_UPPER(oils_xpath('//*[@tag="040"]/*[@code="a" and contains(.,"DLC")]', marc), 1) = 1 THEN
767 IF (oils_xpath('//*[@tag="003"]/text()', marc))[1] ~* E'oclo?c' THEN
774 $func$ LANGUAGE PLPGSQL;
776 CREATE OR REPLACE FUNCTION biblio.extract_fingerprint ( marc text ) RETURNS TEXT AS $func$
778 idx config.biblio_fingerprint%ROWTYPE;
779 xfrm config.xml_transform%ROWTYPE;
781 transformed_xml TEXT;
783 xml_node_list TEXT[];
785 output_text TEXT := '';
788 IF marc IS NULL OR marc = '' THEN
792 -- Loop over the indexing entries
793 FOR idx IN SELECT * FROM config.biblio_fingerprint ORDER BY format, id LOOP
795 SELECT INTO xfrm * from config.xml_transform WHERE name = idx.format;
797 -- See if we can skip the XSLT ... it's expensive
798 IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
799 -- Can't skip the transform
800 IF xfrm.xslt <> '---' THEN
801 transformed_xml := oils_xslt_process(marc,xfrm.xslt);
803 transformed_xml := marc;
806 prev_xfrm := xfrm.name;
809 raw_text := COALESCE(
817 ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]]
826 raw_text := REGEXP_REPLACE(raw_text, E'\\[.+?\\]', E'');
827 raw_text := REGEXP_REPLACE(raw_text, E'\\mthe\\M|\\man?d?d\\M', E'', 'g'); -- arg! the pain!
829 IF idx.first_word IS TRUE THEN
830 raw_text := REGEXP_REPLACE(raw_text, E'^(\\w+).*?$', E'\\1');
833 output_text := output_text || REGEXP_REPLACE(raw_text, E'\\s+', '', 'g');
840 $func$ LANGUAGE PLPGSQL;
842 -- BEFORE UPDATE OR INSERT trigger for biblio.record_entry
843 CREATE OR REPLACE FUNCTION biblio.fingerprint_trigger () RETURNS TRIGGER AS $func$
846 -- For TG_ARGV, first param is language (like 'eng'), second is record type (like 'BKS')
848 IF NEW.deleted IS TRUE THEN -- we don't much care, then, do we?
852 NEW.fingerprint := biblio.extract_fingerprint(NEW.marc);
853 NEW.quality := biblio.extract_quality(NEW.marc, TG_ARGV[0], TG_ARGV[1]);
858 $func$ LANGUAGE PLPGSQL;
860 CREATE OR REPLACE FUNCTION metabib.reingest_metabib_full_rec( bib_id BIGINT ) RETURNS VOID AS $func$
862 PERFORM * FROM config.internal_flag WHERE name = 'ingest.assume_inserts_only' AND enabled;
864 DELETE FROM metabib.real_full_rec WHERE record = bib_id;
866 INSERT INTO metabib.real_full_rec (record, tag, ind1, ind2, subfield, value)
867 SELECT record, tag, ind1, ind2, subfield, value FROM biblio.flatten_marc( bib_id );
871 $func$ LANGUAGE PLPGSQL;
873 CREATE OR REPLACE FUNCTION biblio.extract_located_uris( bib_id BIGINT, marcxml TEXT, editor_id INT ) RETURNS VOID AS $func$
880 uri_owner_list TEXT[];
888 -- Clear any URI mappings and call numbers for this bib.
889 -- This leads to acn / auricnm inflation, but also enables
890 -- old acn/auricnm's to go away and for bibs to be deleted.
891 FOR uri_cn_id IN SELECT id FROM asset.call_number WHERE record = bib_id AND label = '##URI##' AND NOT deleted LOOP
892 DELETE FROM asset.uri_call_number_map WHERE call_number = uri_cn_id;
893 DELETE FROM asset.call_number WHERE id = uri_cn_id;
896 uris := oils_xpath('//*[@tag="856" and (@ind1="4" or @ind1="1") and (@ind2="0" or @ind2="1")]',marcxml);
897 IF ARRAY_UPPER(uris,1) > 0 THEN
898 FOR i IN 1 .. ARRAY_UPPER(uris, 1) LOOP
899 -- First we pull info out of the 856
902 uri_href := (oils_xpath('//*[@code="u"]/text()',uri_xml))[1];
903 uri_label := (oils_xpath('//*[@code="y"]/text()|//*[@code="3"]/text()',uri_xml))[1];
904 uri_use := (oils_xpath('//*[@code="z"]/text()|//*[@code="2"]/text()|//*[@code="n"]/text()',uri_xml))[1];
906 IF uri_label IS NULL THEN
907 uri_label := uri_href;
909 CONTINUE WHEN uri_href IS NULL;
911 -- Get the distinct list of libraries wanting to use
913 DISTINCT REGEXP_REPLACE(
915 $re$^.*?\((\w+)\).*$$re$,
918 ) INTO uri_owner_list
921 '//*[@code="9"]/text()|//*[@code="w"]/text()|//*[@code="n"]/text()',
926 IF ARRAY_UPPER(uri_owner_list,1) > 0 THEN
928 -- look for a matching uri
929 IF uri_use IS NULL THEN
930 SELECT id INTO uri_id
932 WHERE label = uri_label AND href = uri_href AND use_restriction IS NULL AND active
934 IF NOT FOUND THEN -- create one
935 INSERT INTO asset.uri (label, href, use_restriction) VALUES (uri_label, uri_href, uri_use);
936 SELECT id INTO uri_id
938 WHERE label = uri_label AND href = uri_href AND use_restriction IS NULL AND active;
941 SELECT id INTO uri_id
943 WHERE label = uri_label AND href = uri_href AND use_restriction = uri_use AND active
945 IF NOT FOUND THEN -- create one
946 INSERT INTO asset.uri (label, href, use_restriction) VALUES (uri_label, uri_href, uri_use);
947 SELECT id INTO uri_id
949 WHERE label = uri_label AND href = uri_href AND use_restriction = uri_use AND active;
953 FOR j IN 1 .. ARRAY_UPPER(uri_owner_list, 1) LOOP
954 uri_owner := uri_owner_list[j];
956 SELECT id INTO uri_owner_id FROM actor.org_unit WHERE shortname = uri_owner;
957 CONTINUE WHEN NOT FOUND;
959 -- we need a call number to link through
960 SELECT id INTO uri_cn_id FROM asset.call_number WHERE owning_lib = uri_owner_id AND record = bib_id AND label = '##URI##' AND NOT deleted;
962 INSERT INTO asset.call_number (owning_lib, record, create_date, edit_date, creator, editor, label)
963 VALUES (uri_owner_id, bib_id, 'now', 'now', editor_id, editor_id, '##URI##');
964 SELECT id INTO uri_cn_id FROM asset.call_number WHERE owning_lib = uri_owner_id AND record = bib_id AND label = '##URI##' AND NOT deleted;
967 -- now, link them if they're not already
968 SELECT id INTO uri_map_id FROM asset.uri_call_number_map WHERE call_number = uri_cn_id AND uri = uri_id;
970 INSERT INTO asset.uri_call_number_map (call_number, uri) VALUES (uri_cn_id, uri_id);
982 $func$ LANGUAGE PLPGSQL;
984 CREATE OR REPLACE FUNCTION metabib.remap_metarecord_for_bib( bib_id BIGINT, fp TEXT ) RETURNS BIGINT AS $func$
988 tmp_mr metabib.metarecord%ROWTYPE;
989 deleted_mrs BIGINT[];
992 DELETE FROM metabib.metarecord_source_map WHERE source = bib_id; -- Rid ourselves of the search-estimate-killing linkage
994 FOR tmp_mr IN SELECT m.* FROM metabib.metarecord m JOIN metabib.metarecord_source_map s ON (s.metarecord = m.id) WHERE s.source = bib_id LOOP
996 IF old_mr IS NULL AND fp = tmp_mr.fingerprint THEN -- Find the first fingerprint-matching
999 SELECT COUNT(*) INTO source_count FROM metabib.metarecord_source_map WHERE metarecord = tmp_mr.id;
1000 IF source_count = 0 THEN -- No other records
1001 deleted_mrs := ARRAY_APPEND(deleted_mrs, tmp_mr.id);
1002 DELETE FROM metabib.metarecord WHERE id = tmp_mr.id;
1008 IF old_mr IS NULL THEN -- we found no suitable, preexisting MR based on old source maps
1009 SELECT id INTO old_mr FROM metabib.metarecord WHERE fingerprint = fp; -- is there one for our current fingerprint?
1010 IF old_mr IS NULL THEN -- nope, create one and grab its id
1011 INSERT INTO metabib.metarecord ( fingerprint, master_record ) VALUES ( fp, bib_id );
1012 SELECT id INTO old_mr FROM metabib.metarecord WHERE fingerprint = fp;
1013 ELSE -- indeed there is. update it with a null cache and recalcualated master record
1014 UPDATE metabib.metarecord
1016 master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp ORDER BY quality DESC LIMIT 1)
1019 ELSE -- there was one we already attached to, update its mods cache and master_record
1020 UPDATE metabib.metarecord
1022 master_record = ( SELECT id FROM biblio.record_entry WHERE fingerprint = fp ORDER BY quality DESC LIMIT 1)
1026 INSERT INTO metabib.metarecord_source_map (metarecord, source) VALUES (old_mr, bib_id); -- new source mapping
1028 IF ARRAY_UPPER(deleted_mrs,1) > 0 THEN
1029 UPDATE action.hold_request SET target = old_mr WHERE target IN ( SELECT unnest(deleted_mrs) ) AND hold_type = 'M'; -- if we had to delete any MRs above, make sure their holds are moved
1035 $func$ LANGUAGE PLPGSQL;
1037 CREATE OR REPLACE FUNCTION biblio.map_authority_linking (bibid BIGINT, marc TEXT) RETURNS BIGINT AS $func$
1038 DELETE FROM authority.bib_linking WHERE bib = $1;
1039 INSERT INTO authority.bib_linking (bib, authority)
1042 FROM ( SELECT DISTINCT $1 AS bib,
1043 BTRIM(remove_paren_substring(txt))::BIGINT AS authority
1044 FROM unnest(oils_xpath('//*[@code="0"]/text()',$2)) x(txt)
1045 WHERE BTRIM(remove_paren_substring(txt)) ~ $re$^\d+$$re$
1046 ) y JOIN authority.record_entry r ON r.id = y.authority;
1048 $func$ LANGUAGE SQL;
1050 -- AFTER UPDATE OR INSERT trigger for biblio.record_entry
1051 CREATE OR REPLACE FUNCTION biblio.indexing_ingest_or_delete () RETURNS TRIGGER AS $func$
1053 transformed_xml TEXT;
1056 xfrm config.xml_transform%ROWTYPE;
1058 new_attrs HSTORE := ''::HSTORE;
1059 attr_def config.record_attr_definition%ROWTYPE;
1062 IF NEW.deleted IS TRUE THEN -- If this bib is deleted
1063 DELETE FROM metabib.metarecord_source_map WHERE source = NEW.id; -- Rid ourselves of the search-estimate-killing linkage
1064 DELETE FROM metabib.record_attr WHERE id = NEW.id; -- Kill the attrs hash, useless on deleted records
1065 DELETE FROM authority.bib_linking WHERE bib = NEW.id; -- Avoid updating fields in bibs that are no longer visible
1066 DELETE FROM biblio.peer_bib_copy_map WHERE peer_record = NEW.id; -- Separate any multi-homed items
1067 DELETE FROM metabib.browse_entry_def_map WHERE source = NEW.id; -- Don't auto-suggest deleted bibs
1068 RETURN NEW; -- and we're done
1071 IF TG_OP = 'UPDATE' THEN -- re-ingest?
1072 PERFORM * FROM config.internal_flag WHERE name = 'ingest.reingest.force_on_same_marc' AND enabled;
1074 IF NOT FOUND AND OLD.marc = NEW.marc THEN -- don't do anything if the MARC didn't change
1079 -- Record authority linking
1080 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_authority_linking' AND enabled;
1082 PERFORM biblio.map_authority_linking( NEW.id, NEW.marc );
1085 -- Flatten and insert the mfr data
1086 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_metabib_full_rec' AND enabled;
1088 PERFORM metabib.reingest_metabib_full_rec(NEW.id);
1090 -- Now we pull out attribute data, which is dependent on the mfr for all but XPath-based fields
1091 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_metabib_rec_descriptor' AND enabled;
1093 FOR attr_def IN SELECT * FROM config.record_attr_definition ORDER BY format LOOP
1095 IF attr_def.tag IS NOT NULL THEN -- tag (and optional subfield list) selection
1096 SELECT ARRAY_TO_STRING(ARRAY_ACCUM(value), COALESCE(attr_def.joiner,' ')) INTO attr_value
1097 FROM (SELECT * FROM metabib.full_rec ORDER BY tag, subfield) AS x
1098 WHERE record = NEW.id
1099 AND tag LIKE attr_def.tag
1101 WHEN attr_def.sf_list IS NOT NULL
1102 THEN POSITION(subfield IN attr_def.sf_list) > 0
1109 ELSIF attr_def.fixed_field IS NOT NULL THEN -- a named fixed field, see config.marc21_ff_pos_map.fixed_field
1110 attr_value := biblio.marc21_extract_fixed_field(NEW.id, attr_def.fixed_field);
1112 ELSIF attr_def.xpath IS NOT NULL THEN -- and xpath expression
1114 SELECT INTO xfrm * FROM config.xml_transform WHERE name = attr_def.format;
1116 -- See if we can skip the XSLT ... it's expensive
1117 IF prev_xfrm IS NULL OR prev_xfrm <> xfrm.name THEN
1118 -- Can't skip the transform
1119 IF xfrm.xslt <> '---' THEN
1120 transformed_xml := oils_xslt_process(NEW.marc,xfrm.xslt);
1122 transformed_xml := NEW.marc;
1125 prev_xfrm := xfrm.name;
1128 IF xfrm.name IS NULL THEN
1129 -- just grab the marcxml (empty) transform
1130 SELECT INTO xfrm * FROM config.xml_transform WHERE xslt = '---' LIMIT 1;
1131 prev_xfrm := xfrm.name;
1134 attr_value := oils_xpath_string(attr_def.xpath, transformed_xml, COALESCE(attr_def.joiner,' '), ARRAY[ARRAY[xfrm.prefix, xfrm.namespace_uri]]);
1136 ELSIF attr_def.phys_char_sf IS NOT NULL THEN -- a named Physical Characteristic, see config.marc21_physical_characteristic_*_map
1137 SELECT m.value INTO attr_value
1138 FROM biblio.marc21_physical_characteristics(NEW.id) v
1139 JOIN config.marc21_physical_characteristic_value_map m ON (m.id = v.value)
1140 WHERE v.subfield = attr_def.phys_char_sf
1141 LIMIT 1; -- Just in case ...
1145 -- apply index normalizers to attr_value
1147 SELECT n.func AS func,
1148 n.param_count AS param_count,
1150 FROM config.index_normalizer n
1151 JOIN config.record_attr_index_norm_map m ON (m.norm = n.id)
1152 WHERE attr = attr_def.name
1154 EXECUTE 'SELECT ' || normalizer.func || '(' ||
1155 COALESCE( quote_literal( attr_value ), 'NULL' ) ||
1157 WHEN normalizer.param_count > 0
1158 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
1161 ')' INTO attr_value;
1165 -- Add the new value to the hstore
1166 new_attrs := new_attrs || hstore( attr_def.name, attr_value );
1170 IF TG_OP = 'INSERT' OR OLD.deleted THEN -- initial insert OR revivication
1171 INSERT INTO metabib.record_attr (id, attrs) VALUES (NEW.id, new_attrs);
1173 UPDATE metabib.record_attr SET attrs = new_attrs WHERE id = NEW.id;
1179 -- Gather and insert the field entry data
1180 PERFORM metabib.reingest_metabib_field_entries(NEW.id);
1182 -- Located URI magic
1183 IF TG_OP = 'INSERT' THEN
1184 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_located_uri' AND enabled;
1186 PERFORM biblio.extract_located_uris( NEW.id, NEW.marc, NEW.editor );
1189 PERFORM * FROM config.internal_flag WHERE name = 'ingest.disable_located_uri' AND enabled;
1191 PERFORM biblio.extract_located_uris( NEW.id, NEW.marc, NEW.editor );
1195 -- (re)map metarecord-bib linking
1196 IF TG_OP = 'INSERT' THEN -- if not deleted and performing an insert, check for the flag
1197 PERFORM * FROM config.internal_flag WHERE name = 'ingest.metarecord_mapping.skip_on_insert' AND enabled;
1199 PERFORM metabib.remap_metarecord_for_bib( NEW.id, NEW.fingerprint );
1201 ELSE -- we're doing an update, and we're not deleted, remap
1202 PERFORM * FROM config.internal_flag WHERE name = 'ingest.metarecord_mapping.skip_on_update' AND enabled;
1204 PERFORM metabib.remap_metarecord_for_bib( NEW.id, NEW.fingerprint );
1210 $func$ LANGUAGE PLPGSQL;
1212 CREATE OR REPLACE FUNCTION metabib.browse_normalize(facet_text TEXT, mapped_field INT) RETURNS TEXT AS $$
1218 SELECT n.func AS func,
1219 n.param_count AS param_count,
1221 FROM config.index_normalizer n
1222 JOIN config.metabib_field_index_norm_map m ON (m.norm = n.id)
1223 WHERE m.field = mapped_field AND m.pos < 0
1226 EXECUTE 'SELECT ' || normalizer.func || '(' ||
1227 quote_literal( facet_text ) ||
1229 WHEN normalizer.param_count > 0
1230 THEN ',' || REPLACE(REPLACE(BTRIM(normalizer.params,'[]'),E'\'',E'\\\''),E'"',E'\'')
1233 ')' INTO facet_text;
1240 $$ LANGUAGE PLPGSQL;
1243 -- This mimics a specific part of QueryParser, turning the first part of a
1244 -- classed search (search_class) into a set of classes and possibly fields.
1245 -- search_class might look like "author" or "title|proper" or "ti|uniform"
1246 -- or "au" or "au|corporate|personal" or anything like that, where the first
1247 -- element of the list you get by separating on the "|" character is either
1248 -- a registered class (config.metabib_class) or an alias
1249 -- (config.metabib_search_alias), and the rest of any such elements are
1250 -- fields (config.metabib_field).
1252 FUNCTION metabib.search_class_to_registered_components(search_class TEXT)
1253 RETURNS SETOF RECORD AS $func$
1255 search_parts TEXT[];
1257 search_part_count INTEGER;
1259 registered_class config.metabib_class%ROWTYPE;
1260 registered_alias config.metabib_search_alias%ROWTYPE;
1261 registered_field config.metabib_field%ROWTYPE;
1263 search_parts := REGEXP_SPLIT_TO_ARRAY(search_class, E'\\|');
1265 search_part_count := ARRAY_LENGTH(search_parts, 1);
1266 IF search_part_count = 0 THEN
1269 SELECT INTO registered_class
1270 * FROM config.metabib_class WHERE name = search_parts[1];
1272 IF search_part_count < 2 THEN -- all fields
1273 rec := (registered_class.name, NULL::INTEGER);
1277 FOR field_name IN SELECT *
1278 FROM UNNEST(search_parts[2:search_part_count]) LOOP
1279 SELECT INTO registered_field
1280 * FROM config.metabib_field
1281 WHERE name = field_name AND
1282 field_class = registered_class.name;
1284 rec := (registered_class.name, registered_field.id);
1289 -- maybe we have an alias?
1290 SELECT INTO registered_alias
1291 * FROM config.metabib_search_alias WHERE alias=search_parts[1];
1295 IF search_part_count < 2 THEN -- return w/e the alias says
1297 registered_alias.field_class, registered_alias.field
1302 FOR field_name IN SELECT *
1303 FROM UNNEST(search_parts[2:search_part_count]) LOOP
1304 SELECT INTO registered_field
1305 * FROM config.metabib_field
1306 WHERE name = field_name AND
1307 field_class = registered_alias.field_class;
1310 registered_alias.field_class,
1321 $func$ LANGUAGE PLPGSQL ROWS 1;
1324 -- Given a string such as a user might type into a search box, prepare
1325 -- two changed variants for TO_TSQUERY(). See
1326 -- http://www.postgresql.org/docs/9.0/static/textsearch-controls.html
1327 -- The first variant is normalized to match indexed documents regardless
1328 -- of diacritics. The second variant keeps its diacritics for proper
1329 -- highlighting via TS_HEADLINE().
1331 FUNCTION metabib.autosuggest_prepare_tsquery(orig TEXT) RETURNS TEXT[] AS
1334 orig_ended_in_space BOOLEAN;
1339 orig_ended_in_space := orig ~ E'\\s$';
1341 orig := ARRAY_TO_STRING(
1342 evergreen.regexp_split_to_array(orig, E'\\W+'), ' '
1345 normalized := public.search_normalize(orig); -- also trim()s
1346 plain := trim(orig);
1348 IF NOT orig_ended_in_space THEN
1349 plain := plain || ':*';
1350 normalized := normalized || ':*';
1353 plain := ARRAY_TO_STRING(
1354 evergreen.regexp_split_to_array(plain, E'\\s+'), ' & '
1356 normalized := ARRAY_TO_STRING(
1357 evergreen.regexp_split_to_array(normalized, E'\\s+'), ' & '
1360 RETURN ARRAY[normalized, plain];
1362 $$ LANGUAGE PLPGSQL;
1366 FUNCTION metabib.suggest_browse_entries(
1367 raw_query_text TEXT, -- actually typed by humans at the UI level
1368 search_class TEXT, -- 'alias' or 'class' or 'class|field..', etc
1369 headline_opts TEXT, -- markup options for ts_headline()
1370 visibility_org INTEGER,-- null if you don't want opac visibility test
1371 query_limit INTEGER,-- use in LIMIT clause of interal query
1372 normalization INTEGER -- argument to TS_RANK_CD()
1374 value TEXT, -- plain
1376 buoyant_and_class_match BOOL,
1378 field_weight INTEGER,
1381 match TEXT -- marked up
1384 prepared_query_texts TEXT[];
1386 plain_query TSQUERY;
1387 opac_visibility_join TEXT;
1388 search_class_join TEXT;
1391 prepared_query_texts := metabib.autosuggest_prepare_tsquery(raw_query_text);
1393 query := TO_TSQUERY('keyword', prepared_query_texts[1]);
1394 plain_query := TO_TSQUERY('keyword', prepared_query_texts[2]);
1396 visibility_org := NULLIF(visibility_org,-1);
1397 IF visibility_org IS NOT NULL THEN
1398 opac_visibility_join := '
1399 JOIN asset.opac_visible_copies aovc ON (
1400 aovc.record = x.source AND
1401 aovc.circ_lib IN (SELECT id FROM actor.org_unit_descendants($4))
1404 opac_visibility_join := '';
1407 -- The following determines whether we only provide suggestsons matching
1408 -- the user's selected search_class, or whether we show other suggestions
1409 -- too. The reason for MIN() is that for search_classes like
1410 -- 'title|proper|uniform' you would otherwise get multiple rows. The
1411 -- implication is that if title as a class doesn't have restrict,
1412 -- nor does the proper field, but the uniform field does, you're going
1413 -- to get 'false' for your overall evaluation of 'should we restrict?'
1414 -- To invert that, change from MIN() to MAX().
1418 MIN(cmc.restrict::INT) AS restrict_class,
1419 MIN(cmf.restrict::INT) AS restrict_field
1420 FROM metabib.search_class_to_registered_components(search_class)
1421 AS _registered (field_class TEXT, field INT)
1423 config.metabib_class cmc ON (cmc.name = _registered.field_class)
1425 config.metabib_field cmf ON (cmf.id = _registered.field);
1427 -- evaluate 'should we restrict?'
1428 IF r_fields.restrict_field::BOOL OR r_fields.restrict_class::BOOL THEN
1429 search_class_join := '
1431 metabib.search_class_to_registered_components($2)
1432 AS _registered (field_class TEXT, field INT) ON (
1433 (_registered.field IS NULL AND
1434 _registered.field_class = cmf.field_class) OR
1435 (_registered.field = cmf.id)
1439 search_class_join := '
1441 metabib.search_class_to_registered_components($2)
1442 AS _registered (field_class TEXT, field INT) ON (
1443 _registered.field_class = cmc.name
1448 RETURN QUERY EXECUTE '
1457 TS_HEADLINE(value, $7, $3)
1458 FROM (SELECT DISTINCT
1461 cmc.buoyant AND _registered.field_class IS NOT NULL AS push,
1462 _registered.field = cmf.id AS restrict,
1464 TS_RANK_CD(mbe.index_vector, $1, $6),
1467 FROM metabib.browse_entry_def_map mbedm
1468 JOIN (SELECT * FROM metabib.browse_entry WHERE index_vector @@ $1 LIMIT 10000) mbe ON (mbe.id = mbedm.entry)
1469 JOIN config.metabib_field cmf ON (cmf.id = mbedm.def)
1470 JOIN config.metabib_class cmc ON (cmf.field_class = cmc.name)
1471 ' || search_class_join || '
1472 ORDER BY 3 DESC, 4 DESC NULLS LAST, 5 DESC, 6 DESC, 7 DESC, 1 ASC
1474 ' || opac_visibility_join || '
1475 ORDER BY 3 DESC, 4 DESC NULLS LAST, 5 DESC, 6 DESC, 7 DESC, 1 ASC
1477 ' -- sic, repeat the order by clause in the outer select too
1479 query, search_class, headline_opts,
1480 visibility_org, query_limit, normalization, plain_query
1484 -- buoyant AND chosen class = match class
1485 -- chosen field = match field
1492 $func$ LANGUAGE PLPGSQL;