SELECT $2;
$$ LANGUAGE SQL;
-CREATE OR REPLACE FUNCTION is_json (TEXT) RETURNS BOOL AS $func$
+CREATE OR REPLACE FUNCTION is_json( TEXT ) RETURNS BOOL AS $f$
use JSON::XS;
my $json = shift();
- eval { decode_json( $json ) };
+ eval { JSON::XS->new->allow_nonref->decode( $json ) };
return $@ ? 0 : 1;
-$func$ LANGUAGE PLPERLU IMMUTABLE;
+$f$ LANGUAGE PLPERLU;
+
+-- turn a JSON scalar into an SQL TEXT value
+CREATE OR REPLACE FUNCTION oils_json_to_text( TEXT ) RETURNS TEXT AS $f$
+ use JSON::XS;
+ my $json = shift();
+ my $txt;
+ eval { $txt = JSON::XS->new->allow_nonref->decode( $json ) };
+ return undef if ($@);
+ return $txt
+$f$ LANGUAGE PLPERLU;
COMMIT;
install_date TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
);
-INSERT INTO config.upgrade_log (version) VALUES ('0280'); -- Scott McKellar
+INSERT INTO config.upgrade_log (version) VALUES ('0281'); -- miker
CREATE TABLE config.bib_source (
id SERIAL PRIMARY KEY,
END;
$$ LANGUAGE 'plpgsql';
+-- Return the list of circ chain heads in xact_start order that the user has chosen to "retain"
+CREATE OR REPLACE FUNCTION action.usr_visible_circs (usr_id INT) RETURNS SETOF action.circulation AS $func$
+DECLARE
+ c action.circulation%ROWTYPE;
+ view_age INTERVAL;
+ usr_view_age actor.usr_setting%ROWTYPE;
+ usr_view_start actor.usr_setting%ROWTYPE;
+BEGIN
+ SELECT * INTO usr_view_age FROM actor.usr_setting WHERE usr = usr_id AND name = 'history.circ.retention_age';
+ SELECT * INTO usr_view_start FROM actor.usr_setting WHERE usr = usr_id AND name = 'history.circ.retention_start_date';
+
+ IF usr_view_age.value IS NOT NULL AND usr_view_start.value IS NOT NULL THEN
+ -- User opted in and supplied a retention age
+ IF oils_json_to_string(usr_view_age.value)::INTERVAL > AGE(NOW(), oils_json_to_string(usr_view_start.value)::TIMESTAMPTZ) THEN
+ view_age := AGE(NOW(), oils_json_to_string(usr_view_start.value)::TIMESTAMPTZ);
+ ELSE
+ view_age := oils_json_to_string(usr_view_age.value)::INTERVAL;
+ END IF;
+ ELSIF usr_view_start.value IS NOT NULL THEN
+ -- User opted in
+ view_age := AGE(NOW(), oils_json_to_string(usr_view_start.value)::TIMESTAMPTZ);
+ ELSE
+ -- User did not opt in
+ RETURN;
+ END IF;
+
+ FOR c IN
+ SELECT *
+ FROM action.circulation
+ WHERE usr = usr_id
+ AND parent_circ IS NULL
+ AND xact_start < NOW() - view_age
+ ORDER BY xact_start
+ LOOP
+ RETURN NEXT c;
+ END LOOP;
+
+ RETURN;
+END;
+$func$ LANGUAGE PLPGSQL;
+
+CREATE OR REPLACE FUNCTION action.purge_circulations () RETURNS INT AS $func$
+DECLARE
+ usr_keep_age actor.usr_setting%ROWTYPE;
+ usr_keep_start actor.usr_setting%ROWTYPE;
+ org_keep_age INTERVAL;
+ org_keep_count INT;
+
+ keep_age INTERVAL;
+
+ target_acp RECORD;
+ circ_chain_head action.circulation%ROWTYPE;
+ circ_chain_tail action.circulation%ROWTYPE;
+
+ purge_position INT;
+ count_purged INT;
+BEGIN
+
+ count_purged := 0;
+
+ SELECT value::INTERVAL INTO org_keep_age FROM config.global_flag WHERE name = 'history.circ.retention_age' AND enabled;
+
+ SELECT value::INT INTO org_keep_count FROM config.global_flag WHERE name = 'history.circ.retention_count' AND enabled;
+ IF org_keep_count IS NULL THEN
+ RETURN count_purged; -- Gimme a count to keep, or I keep them all, forever
+ END IF;
+
+ -- First, find copies with more than keep_count non-renewal circs
+ FOR target_acp IN
+ SELECT target_copy,
+ COUNT(*) AS total_real_circs
+ FROM action.circulation
+ WHERE parent_circ IS NULL
+ AND xact_finish IS NOT NULL
+ GROUP BY target_copy
+ HAVING COUNT(*) > org_keep_count
+ LOOP
+ purge_position := 0;
+ -- And, for those, select circs that are finished and older than keep_age
+ FOR circ_chain_head IN
+ SELECT *
+ FROM action.circulation
+ WHERE target_copy = target_acp.target_copy
+ AND parent_circ IS NULL
+ ORDER BY xact_start
+ LOOP
+
+ -- Stop once we've purged enough circs to hit org_keep_count
+ EXIT WHEN target_acp.total_real_circs - purge_position <= org_keep_count;
+
+ SELECT * INTO circ_chain_tail FROM action.circ_chain(circ_chain_head.id) ORDER BY xact_start DESC LIMIT 1;
+ EXIT WHEN circ_chain_tail.xact_finish IS NULL;
+
+ -- Now get the user setings, if any, to block purging if the user wants to keep more circs
+ usr_keep_age.value := NULL;
+ SELECT * INTO usr_keep_age FROM actor.usr_setting WHERE usr = circ_chain_head.usr AND name = 'history.circ.retention_age';
+
+ usr_keep_start.value := NULL;
+ SELECT * INTO usr_keep_start FROM actor.usr_setting WHERE usr = circ_chain_head.usr AND name = 'history.circ.retention_start_date';
+
+ IF usr_keep_age.value IS NOT NULL AND usr_keep_start.value IS NOT NULL THEN
+ IF oils_json_to_string(usr_keep_age.value)::INTERVAL > AGE(NOW(), oils_json_to_string(usr_keep_start.value)::TIMESTAMPTZ) THEN
+ keep_age := AGE(NOW(), oils_json_to_string(usr_keep_start.value)::TIMESTAMPTZ);
+ ELSE
+ keep_age := oils_json_to_string(usr_keep_age.value)::INTERVAL;
+ END IF;
+ ELSIF usr_keep_start.value IS NOT NULL THEN
+ keep_age := AGE(NOW(), oils_json_to_string(usr_keep_start.value)::TIMESTAMPTZ);
+ ELSE
+ keep_age := COALESCE( org_keep_age::INTERVAL, '2000 years'::INTEVAL );
+ END IF;
+
+ EXIT WHEN AGE(NOW(), circ_chain_tail.xact_finish) < keep_age;
+
+ -- We've passed the purging tests, purge the circ chain starting at the end
+ DELETE FROM action.circulation WHERE id = circ_chain_tail.id;
+ WHILE circ_chain_tail.parent_circ IS NOT NULL LOOP
+ SELECT * INTO circ_chain_tail FROM action.circulation WHERE id = circ_chain_tail.parent_circ;
+ DELETE FROM action.circulation WHERE id = circ_chain_tail.id;
+ END LOOP;
+
+ count_purged := count_purged + 1;
+ purge_position := purge_position + 1;
+
+ END LOOP;
+ END LOOP;
+END;
+$func$ LANGUAGE PLPGSQL;
+
COMMIT;
);
+INSERT INTO config.global_flag (name,label,enabled)
+ VALUES (
+ 'history.circ.retention_age',
+ oils_i18n_gettext('history.circ.retention_age', 'Historical Circulation Retention Age', 'cgf', 'label'),
+ TRUE
+ ),(
+ 'history.circ.retention_count',
+ oils_i18n_gettext('history.circ.retention_count', 'Historical Circulations per Copy', 'cgf', 'label'),
+ TRUE
+ );
+
+INSERT INTO config.usr_setting_type (name,opac_visible,label,description,datatype)
+ VALUES (
+ 'history.circ.retention_age',
+ TRUE,
+ oils_i18n_gettext('history.circ.retention_age','Historical Circulation Retention Age','cust','label'),
+ oils_i18n_gettext('history.circ.retention_age','Historical Circulation Retention Age','cust','description'),
+ 'interval'
+ ),(
+ 'history.circ.retention_start',
+ FALSE,
+ oils_i18n_gettext('history.circ.retention_start','Historical Circulation Retention Start Date','cust','label'),
+ oils_i18n_gettext('history.circ.retention_start','Historical Circulation Retention Start Date','cust','description'),
+ 'date'
+ );
+
--- /dev/null
+BEGIN;
+
+INSERT INTO config.upgrade_log (version) VALUES ('0281');
+
+-- We need this data to do anything interesting, so just add it in the schema upgrade script
+INSERT INTO config.global_flag (name,label,enabled)
+ VALUES ('history.circ.retention_age',oils_i18n_gettext('history.circ.retention_age', 'Historical Circulation Retention Age', 'cgf', 'label'), TRUE);
+INSERT INTO config.global_flag (name,label,enabled)
+ VALUES ('history.circ.retention_count',oils_i18n_gettext('history.circ.retention_count', 'Historical Circulations per Copy', 'cgf', 'label'), TRUE);
+
+INSERT INTO config.usr_setting_type (name,opac_visible,label,description,datatype)
+ VALUES ('history.circ.retention_age', TRUE, 'Historical Circulation Retention Age', 'Historical Circulation Retention Age', 'interval');
+INSERT INTO config.usr_setting_type (name,opac_visible,label,description,datatype)
+ VALUES ('history.circ.retention_start', FALSE, 'Historical Circulation Retention Start Date', 'Historical Circulation Retention Start Date', 'date');
+
+
+-- upgrade is_json to allow non-ref JSON (strings, numbers, etc)
+CREATE OR REPLACE FUNCTION is_json( TEXT ) RETURNS BOOL AS $f$
+ use JSON::XS;
+ my $json = shift();
+ eval { JSON::XS->new->allow_nonref->decode( $json ) };
+ return $@ ? 0 : 1;
+$f$ LANGUAGE PLPERLU;
+
+-- turn a JSON scalar into an SQL TEXT value
+CREATE OR REPLACE FUNCTION oils_json_to_text( TEXT ) RETURNS TEXT AS $f$
+ use JSON::XS;
+ my $json = shift();
+ my $txt;
+ eval { $txt = JSON::XS->new->allow_nonref->decode( $json ) };
+ return undef if ($@);
+ return $txt
+$f$ LANGUAGE PLPERLU;
+
+-- Return the list of circ chain heads in xact_start order that the user has chosen to "retain"
+CREATE OR REPLACE FUNCTION action.usr_visible_circs (usr_id INT) RETURNS SETOF action.circulation AS $func$
+DECLARE
+ c action.circulation%ROWTYPE;
+ view_age INTERVAL;
+ usr_view_age actor.usr_setting%ROWTYPE;
+ usr_view_start actor.usr_setting%ROWTYPE;
+BEGIN
+ SELECT * INTO usr_view_age FROM actor.usr_setting WHERE usr = usr_id AND name = 'history.circ.retention_age';
+ SELECT * INTO usr_view_start FROM actor.usr_setting WHERE usr = usr_id AND name = 'history.circ.retention_start_date';
+
+ IF usr_view_age.value IS NOT NULL AND usr_view_start.value IS NOT NULL THEN
+ -- User opted in and supplied a retention age
+ IF oils_json_to_string(usr_view_age.value)::INTERVAL > AGE(NOW(), oils_json_to_string(usr_view_start.value)::TIMESTAMPTZ) THEN
+ view_age := AGE(NOW(), oils_json_to_string(usr_view_start.value)::TIMESTAMPTZ);
+ ELSE
+ view_age := oils_json_to_string(usr_view_age.value)::INTERVAL;
+ END IF;
+ ELSIF usr_view_start.value IS NOT NULL THEN
+ -- User opted in
+ view_age := AGE(NOW(), oils_json_to_string(usr_view_start.value)::TIMESTAMPTZ);
+ ELSE
+ -- User did not opt in
+ RETURN;
+ END IF;
+
+ FOR c IN
+ SELECT *
+ FROM action.circulation
+ WHERE usr = usr_id
+ AND parent_circ IS NULL
+ AND xact_start < NOW() - view_age
+ ORDER BY xact_start
+ LOOP
+ RETURN NEXT c;
+ END LOOP;
+
+ RETURN;
+END;
+$func$ LANGUAGE PLPGSQL;
+
+CREATE OR REPLACE FUNCTION action.purge_circulations () RETURNS INT AS $func$
+DECLARE
+ usr_keep_age actor.usr_setting%ROWTYPE;
+ usr_keep_start actor.usr_setting%ROWTYPE;
+ org_keep_age INTERVAL;
+ org_keep_count INT;
+
+ keep_age INTERVAL;
+
+ target_acp RECORD;
+ circ_chain_head action.circulation%ROWTYPE;
+ circ_chain_tail action.circulation%ROWTYPE;
+
+ purge_position INT;
+ count_purged INT;
+BEGIN
+
+ count_purged := 0;
+
+ SELECT value::INTERVAL INTO org_keep_age FROM config.global_flag WHERE name = 'history.circ.retention_age' AND enabled;
+
+ SELECT value::INT INTO org_keep_count FROM config.global_flag WHERE name = 'history.circ.retention_count' AND enabled;
+ IF org_keep_count IS NULL THEN
+ RETURN count_purged; -- Gimme a count to keep, or I keep them all, forever
+ END IF;
+
+ -- First, find copies with more than keep_count non-renewal circs
+ FOR target_acp IN
+ SELECT target_copy,
+ COUNT(*) AS total_real_circs
+ FROM action.circulation
+ WHERE parent_circ IS NULL
+ AND xact_finish IS NOT NULL
+ GROUP BY target_copy
+ HAVING COUNT(*) > org_keep_count
+ LOOP
+ purge_position := 0;
+ -- And, for those, select circs that are finished and older than keep_age
+ FOR circ_chain_head IN
+ SELECT *
+ FROM action.circulation
+ WHERE target_copy = target_acp.target_copy
+ AND parent_circ IS NULL
+ ORDER BY xact_start
+ LOOP
+
+ -- Stop once we've purged enough circs to hit org_keep_count
+ EXIT WHEN target_acp.total_real_circs - purge_position <= org_keep_count;
+
+ SELECT * INTO circ_chain_tail FROM action.circ_chain(circ_chain_head.id) ORDER BY xact_start DESC LIMIT 1;
+ EXIT WHEN circ_chain_tail.xact_finish IS NULL;
+
+ -- Now get the user setings, if any, to block purging if the user wants to keep more circs
+ usr_keep_age.value := NULL;
+ SELECT * INTO usr_keep_age FROM actor.usr_setting WHERE usr = circ_chain_head.usr AND name = 'history.circ.retention_age';
+
+ usr_keep_start.value := NULL;
+ SELECT * INTO usr_keep_start FROM actor.usr_setting WHERE usr = circ_chain_head.usr AND name = 'history.circ.retention_start_date';
+
+ IF usr_keep_age.value IS NOT NULL AND usr_keep_start.value IS NOT NULL THEN
+ IF oils_json_to_string(usr_keep_age.value)::INTERVAL > AGE(NOW(), oils_json_to_string(usr_keep_start.value)::TIMESTAMPTZ) THEN
+ keep_age := AGE(NOW(), oils_json_to_string(usr_keep_start.value)::TIMESTAMPTZ);
+ ELSE
+ keep_age := oils_json_to_string(usr_keep_age.value)::INTERVAL;
+ END IF;
+ ELSIF usr_keep_start.value IS NOT NULL THEN
+ keep_age := AGE(NOW(), oils_json_to_string(usr_keep_start.value)::TIMESTAMPTZ);
+ ELSE
+ keep_age := COALESCE( org_keep_age::INTERVAL, '2000 years'::INTEVAL );
+ END IF;
+
+ EXIT WHEN AGE(NOW(), circ_chain_tail.xact_finish) < keep_age;
+
+ -- We've passed the purging tests, purge the circ chain starting at the end
+ DELETE FROM action.circulation WHERE id = circ_chain_tail.id;
+ WHILE circ_chain_tail.parent_circ IS NOT NULL LOOP
+ SELECT * INTO circ_chain_tail FROM action.circulation WHERE id = circ_chain_tail.parent_circ;
+ DELETE FROM action.circulation WHERE id = circ_chain_tail.id;
+ END LOOP;
+
+ count_purged := count_purged + 1;
+ purge_position := purge_position + 1;
+
+ END LOOP;
+ END LOOP;
+END;
+$func$ LANGUAGE PLPGSQL;
+
+COMMIT;
+
projects / evergreen / bjwebb.git / commitdiff