lp827356 new rules protect bre -1, acn -1 and acl 1 as well as marc editing buttons...

[Evergreen.git] / Open-ILS / src / sql / Pg / upgrade / xxxx.schema.protect_special_ids.sql

BEGIN;

-- SELECT evergreen.upgrade_deps_block_check('xxxx', :eg_version);

UPDATE asset.call_number SET record = -1 WHERE id = -1 AND record != -1;

CREATE RULE protect_bre_id_neg1 AS ON UPDATE TO biblio.record_entry WHERE OLD.id = -1 DO INSTEAD NOTHING;
CREATE RULE protect_acl_id_1 AS ON UPDATE TO asset.copy_location WHERE OLD.id = 1 DO INSTEAD NOTHING;
CREATE RULE protect_acn_id_neg1 AS ON UPDATE TO asset.call_number WHERE OLD.id = -1 DO INSTEAD NOTHING;

CREATE OR REPLACE FUNCTION asset.merge_record_assets( target_record BIGINT, source_record BIGINT ) RETURNS INT AS $func$
DECLARE
    moved_objects INT := 0;
    source_cn     asset.call_number%ROWTYPE;
    target_cn     asset.call_number%ROWTYPE;
    metarec       metabib.metarecord%ROWTYPE;
    hold          action.hold_request%ROWTYPE;
    ser_rec       serial.record_entry%ROWTYPE;
    ser_sub       serial.subscription%ROWTYPE;
    acq_lineitem  acq.lineitem%ROWTYPE;
    acq_request   acq.user_request%ROWTYPE;
    booking       booking.resource_type%ROWTYPE;
    source_part   biblio.monograph_part%ROWTYPE;
    target_part   biblio.monograph_part%ROWTYPE;
    multi_home    biblio.peer_bib_copy_map%ROWTYPE;
    uri_count     INT := 0;
    counter       INT := 0;
    uri_datafield TEXT;
    uri_text      TEXT := '';
BEGIN

    -- we don't merge bib -1 
    IF target_record = -1 OR source_record = -1 THEN 
       RETURN 0;
    END IF;

    -- move any 856 entries on records that have at least one MARC-mapped URI entry
    SELECT  INTO uri_count COUNT(*)
      FROM  asset.uri_call_number_map m
            JOIN asset.call_number cn ON (m.call_number = cn.id)
      WHERE cn.record = source_record;

    IF uri_count > 0 THEN
        
        -- This returns more nodes than you might expect:
        -- 7 instead of 1 for an 856 with $u $y $9
        SELECT  COUNT(*) INTO counter
          FROM  oils_xpath_table(
                    'id',
                    'marc',
                    'biblio.record_entry',
                    '//*[@tag="856"]',
                    'id=' || source_record
                ) as t(i int,c text);
    
        FOR i IN 1 .. counter LOOP
            SELECT  '<datafield xmlns="http://www.loc.gov/MARC21/slim"' || 
            ' tag="856"' ||
            ' ind1="' || FIRST(ind1) || '"'  ||
            ' ind2="' || FIRST(ind2) || '">' ||
                        STRING_AGG(
                            '<subfield code="' || subfield || '">' ||
                            regexp_replace(
                                regexp_replace(
                                    regexp_replace(data,'&','&amp;','g'),
                                    '>', '&gt;', 'g'
                                ),
                                '<', '&lt;', 'g'
                            ) || '</subfield>', ''
                        ) || '</datafield>' INTO uri_datafield
              FROM  oils_xpath_table(
                        'id',
                        'marc',
                        'biblio.record_entry',
                        '//*[@tag="856"][position()=' || i || ']/@ind1|' ||
                        '//*[@tag="856"][position()=' || i || ']/@ind2|' ||
                        '//*[@tag="856"][position()=' || i || ']/*/@code|' ||
                        '//*[@tag="856"][position()=' || i || ']/*[@code]',
                        'id=' || source_record
                    ) as t(id int,ind1 text, ind2 text,subfield text,data text);

            -- As most of the results will be NULL, protect against NULLifying
            -- the valid content that we do generate
            uri_text := uri_text || COALESCE(uri_datafield, '');
        END LOOP;

        IF uri_text <> '' THEN
            UPDATE  biblio.record_entry
              SET   marc = regexp_replace(marc,'(</[^>]*record>)', uri_text || E'\\1')
              WHERE id = target_record;
        END IF;

    END IF;

    -- Find and move metarecords to the target record
    SELECT    INTO metarec *
      FROM    metabib.metarecord
      WHERE    master_record = source_record;

    IF FOUND THEN
        UPDATE    metabib.metarecord
          SET    master_record = target_record,
            mods = NULL
          WHERE    id = metarec.id;

        moved_objects := moved_objects + 1;
    END IF;

    -- Find call numbers attached to the source ...
    FOR source_cn IN SELECT * FROM asset.call_number WHERE record = source_record LOOP

        SELECT    INTO target_cn *
          FROM    asset.call_number
          WHERE    label = source_cn.label
            AND prefix = source_cn.prefix
            AND suffix = source_cn.suffix
            AND owning_lib = source_cn.owning_lib
            AND record = target_record
            AND NOT deleted;

        -- ... and if there's a conflicting one on the target ...
        IF FOUND THEN

            -- ... move the copies to that, and ...
            UPDATE    asset.copy
              SET    call_number = target_cn.id
              WHERE    call_number = source_cn.id;

            -- ... move V holds to the move-target call number
            FOR hold IN SELECT * FROM action.hold_request WHERE target = source_cn.id AND hold_type = 'V' LOOP
        
                UPDATE    action.hold_request
                  SET    target = target_cn.id
                  WHERE    id = hold.id;
        
                moved_objects := moved_objects + 1;
            END LOOP;
        
            UPDATE asset.call_number SET deleted = TRUE WHERE id = source_cn.id;

        -- ... if not ...
        ELSE
            -- ... just move the call number to the target record
            UPDATE    asset.call_number
              SET    record = target_record
              WHERE    id = source_cn.id;
        END IF;

        moved_objects := moved_objects + 1;
    END LOOP;

    -- Find T holds targeting the source record ...
    FOR hold IN SELECT * FROM action.hold_request WHERE target = source_record AND hold_type = 'T' LOOP

        -- ... and move them to the target record
        UPDATE    action.hold_request
          SET    target = target_record
          WHERE    id = hold.id;

        moved_objects := moved_objects + 1;
    END LOOP;

    -- Find serial records targeting the source record ...
    FOR ser_rec IN SELECT * FROM serial.record_entry WHERE record = source_record LOOP
        -- ... and move them to the target record
        UPDATE    serial.record_entry
          SET    record = target_record
          WHERE    id = ser_rec.id;

        moved_objects := moved_objects + 1;
    END LOOP;

    -- Find serial subscriptions targeting the source record ...
    FOR ser_sub IN SELECT * FROM serial.subscription WHERE record_entry = source_record LOOP
        -- ... and move them to the target record
        UPDATE    serial.subscription
          SET    record_entry = target_record
          WHERE    id = ser_sub.id;

        moved_objects := moved_objects + 1;
    END LOOP;

    -- Find booking resource types targeting the source record ...
    FOR booking IN SELECT * FROM booking.resource_type WHERE record = source_record LOOP
        -- ... and move them to the target record
        UPDATE    booking.resource_type
          SET    record = target_record
          WHERE    id = booking.id;

        moved_objects := moved_objects + 1;
    END LOOP;

    -- Find acq lineitems targeting the source record ...
    FOR acq_lineitem IN SELECT * FROM acq.lineitem WHERE eg_bib_id = source_record LOOP
        -- ... and move them to the target record
        UPDATE    acq.lineitem
          SET    eg_bib_id = target_record
          WHERE    id = acq_lineitem.id;

        moved_objects := moved_objects + 1;
    END LOOP;

    -- Find acq user purchase requests targeting the source record ...
    FOR acq_request IN SELECT * FROM acq.user_request WHERE eg_bib = source_record LOOP
        -- ... and move them to the target record
        UPDATE    acq.user_request
          SET    eg_bib = target_record
          WHERE    id = acq_request.id;

        moved_objects := moved_objects + 1;
    END LOOP;

    -- Find parts attached to the source ...
    FOR source_part IN SELECT * FROM biblio.monograph_part WHERE record = source_record LOOP

        SELECT    INTO target_part *
          FROM    biblio.monograph_part
          WHERE    label = source_part.label
            AND record = target_record;

        -- ... and if there's a conflicting one on the target ...
        IF FOUND THEN

            -- ... move the copy-part maps to that, and ...
            UPDATE    asset.copy_part_map
              SET    part = target_part.id
              WHERE    part = source_part.id;

            -- ... move P holds to the move-target part
            FOR hold IN SELECT * FROM action.hold_request WHERE target = source_part.id AND hold_type = 'P' LOOP
        
                UPDATE    action.hold_request
                  SET    target = target_part.id
                  WHERE    id = hold.id;
        
                moved_objects := moved_objects + 1;
            END LOOP;

        -- ... if not ...
        ELSE
            -- ... just move the part to the target record
            UPDATE    biblio.monograph_part
              SET    record = target_record
              WHERE    id = source_part.id;
        END IF;

        moved_objects := moved_objects + 1;
    END LOOP;

    -- Find multi_home items attached to the source ...
    FOR multi_home IN SELECT * FROM biblio.peer_bib_copy_map WHERE peer_record = source_record LOOP
        -- ... and move them to the target record
        UPDATE    biblio.peer_bib_copy_map
          SET    peer_record = target_record
          WHERE    id = multi_home.id;

        moved_objects := moved_objects + 1;
    END LOOP;

    -- And delete mappings where the item's home bib was merged with the peer bib
    DELETE FROM biblio.peer_bib_copy_map WHERE peer_record = (
        SELECT (SELECT record FROM asset.call_number WHERE id = call_number)
        FROM asset.copy WHERE id = target_copy
    );

    -- Apply merge tracking
    UPDATE biblio.record_entry 
        SET merge_date = NOW() WHERE id = target_record;

    UPDATE biblio.record_entry
        SET merge_date = NOW(), merged_to = target_record
        WHERE id = source_record;

    -- replace book bag entries of source_record with target_record
    UPDATE container.biblio_record_entry_bucket_item
        SET target_biblio_record_entry = target_record
        WHERE bucket IN (SELECT id FROM container.biblio_record_entry_bucket WHERE btype = 'bookbag')
        AND target_biblio_record_entry = source_record;

    -- Finally, "delete" the source record
    UPDATE biblio.record_entry SET active = FALSE WHERE id = source_record;
    DELETE FROM biblio.record_entry WHERE id = source_record;

    -- That's all, folks!
    RETURN moved_objects;
END;
$func$ LANGUAGE plpgsql;

COMMIT;