1 -- Evergreen DB patch 0568.schema.cache_visibility_speed_boost.sql
6 -- check whether patch can be applied
7 SELECT evergreen.upgrade_deps_block_check('0568', :eg_version);
9 CREATE OR REPLACE FUNCTION asset.cache_copy_visibility () RETURNS TRIGGER as $func$
16 do_add BOOLEAN := false;
17 do_remove BOOLEAN := false;
20 SELECT cp.id, cp.circ_lib, cn.record, cn.id AS call_number, cp.location, cp.status
22 JOIN asset.call_number cn ON (cn.id = cp.call_number)
23 JOIN actor.org_unit a ON (cp.circ_lib = a.id)
24 JOIN asset.copy_location cl ON (cp.location = cl.id)
25 JOIN config.copy_status cs ON (cp.status = cs.id)
26 JOIN biblio.record_entry b ON (cn.record = b.id)
36 SELECT cp.id, cp.circ_lib, pbcm.peer_record AS record, NULL AS call_number, cp.location, cp.status
38 JOIN biblio.peer_bib_copy_map pbcm ON (pbcm.target_copy = cp.id)
39 JOIN actor.org_unit a ON (cp.circ_lib = a.id)
40 JOIN asset.copy_location cl ON (cp.location = cl.id)
41 JOIN config.copy_status cs ON (cp.status = cs.id)
49 INSERT INTO asset.opac_visible_copies (copy_id, circ_lib, record)
50 SELECT id, circ_lib, record FROM (
56 remove_query := $$ DELETE FROM asset.opac_visible_copies WHERE copy_id IN ( SELECT id FROM asset.copy WHERE $$;
58 IF TG_TABLE_NAME = 'peer_bib_copy_map' THEN
59 IF TG_OP = 'INSERT' THEN
60 add_peer_query := add_peer_query || ' AND cp.id = ' || NEW.target_copy || ' AND pbcm.record = ' || NEW.peer_record;
61 EXECUTE add_front || add_peer_query || add_back;
64 remove_query := 'DELETE FROM asset.opac_visible_copies WHERE copy_id = ' || OLD.target_copy || ' AND record = ' || OLD.peer_record || ';';
70 IF TG_OP = 'INSERT' THEN
72 IF TG_TABLE_NAME IN ('copy', 'unit') THEN
73 add_base_query := add_base_query || ' AND cp.id = ' || NEW.id;
74 EXECUTE add_front || add_basequery || add_back;
81 -- handle items first, since with circulation activity
82 -- their statuses change frequently
83 IF TG_TABLE_NAME IN ('copy', 'unit') THEN
85 IF OLD.location <> NEW.location OR
86 OLD.call_number <> NEW.call_number OR
87 OLD.status <> NEW.status OR
88 OLD.circ_lib <> NEW.circ_lib THEN
89 -- any of these could change visibility, but
90 -- we'll save some queries and not try to calculate
91 -- the change directly
96 IF OLD.deleted <> NEW.deleted THEN
104 IF OLD.opac_visible <> NEW.opac_visible THEN
105 IF OLD.opac_visible THEN
107 ELSIF NOT do_remove THEN -- handle edge case where deleted item
108 -- is also marked opac_visible
116 DELETE FROM asset.opac_visible_copies WHERE copy_id = NEW.id;
119 add_base_query := add_base_query || ' AND cp.id = ' || NEW.id;
120 add_peer_query := add_peer_query || ' AND cp.id = ' || NEW.id;
121 EXECUTE add_front || add_base_query || ' UNION ' || add_peer_query || add_back;
128 IF TG_TABLE_NAME IN ('call_number', 'record_entry') THEN -- these have a 'deleted' column
130 IF OLD.deleted AND NEW.deleted THEN -- do nothing
134 ELSIF NEW.deleted THEN -- remove rows
136 IF TG_TABLE_NAME = 'call_number' THEN
137 DELETE FROM asset.opac_visible_copies WHERE copy_id IN (SELECT id FROM asset.copy WHERE call_number = NEW.id);
138 ELSIF TG_TABLE_NAME = 'record_entry' THEN
139 DELETE FROM asset.opac_visible_copies WHERE record = NEW.id;
144 ELSIF OLD.deleted THEN -- add rows
146 IF TG_TABLE_NAME = 'call_number' THEN
147 add_base_query := add_base_query || ' AND cn.id = ' || NEW.id;
148 EXECUTE add_front || add_base_query || add_back;
149 ELSIF TG_TABLE_NAME = 'record_entry' THEN
150 add_base_query := add_base_query || ' AND cn.record = ' || NEW.id;
151 add_peer_query := add_peer_query || ' AND pbcm.record = ' || NEW.id;
152 EXECUTE add_front || add_base_query || ' UNION ' || add_peer_query || add_back;
161 IF TG_TABLE_NAME = 'call_number' THEN
163 IF OLD.record <> NEW.record THEN
164 -- call number is linked to different bib
165 remove_query := remove_query || 'call_number = ' || NEW.id || ');';
166 EXECUTE remove_query;
167 add_base_query := add_base_query || ' AND cn.id = ' || NEW.id;
168 EXECUTE add_front || add_base_query || add_back;
175 IF TG_TABLE_NAME IN ('record_entry') THEN
176 RETURN NEW; -- don't have 'opac_visible'
179 -- actor.org_unit, asset.copy_location, asset.copy_status
180 IF NEW.opac_visible = OLD.opac_visible THEN -- do nothing
184 ELSIF NEW.opac_visible THEN -- add rows
186 IF TG_TABLE_NAME = 'org_unit' THEN
187 add_base_query := add_base_query || ' AND cp.circ_lib = ' || NEW.id || ';';
188 add_peer_query := add_peer_query || ' AND cp.circ_lib = ' || NEW.id || ';';
189 ELSIF TG_TABLE_NAME = 'copy_location' THEN
190 add_base_query := add_base_query || ' AND cp.location = ' || NEW.id || ';';
191 add_peer_query := add_peer_query || ' AND cp.location = ' || NEW.id || ';';
192 ELSIF TG_TABLE_NAME = 'copy_status' THEN
193 add_base_query := add_base_query || ' AND cp.status = ' || NEW.id || ';';
194 add_peer_query := add_peer_query || ' AND cp.status = ' || NEW.id || ';';
197 EXECUTE add_front || add_base_query || ' UNION ' || add_peer_query || add_back;
201 IF TG_TABLE_NAME = 'org_unit' THEN
202 remove_query := 'DELETE FROM asset.opac_visible_copies WHERE circ_lib = ' || NEW.id || ';';
203 ELSIF TG_TABLE_NAME = 'copy_location' THEN
204 remove_query := remove_query || 'location = ' || NEW.id || ');';
205 ELSIF TG_TABLE_NAME = 'copy_status' THEN
206 remove_query := remove_query || 'status = ' || NEW.id || ');';
209 EXECUTE remove_query;
215 $func$ LANGUAGE PLPGSQL;