1 CREATE OR REPLACE FUNCTION asset.cache_copy_visibility () RETURNS TRIGGER as $func$
8 do_add BOOLEAN := false;
9 do_remove BOOLEAN := false;
12 SELECT cp.id, cp.circ_lib, cn.record, cn.id AS call_number, cp.location, cp.status
14 JOIN asset.call_number cn ON (cn.id = cp.call_number)
15 JOIN actor.org_unit a ON (cp.circ_lib = a.id)
16 JOIN asset.copy_location cl ON (cp.location = cl.id)
17 JOIN config.copy_status cs ON (cp.status = cs.id)
18 JOIN biblio.record_entry b ON (cn.record = b.id)
28 SELECT cp.id, cp.circ_lib, pbcm.peer_record AS record, NULL AS call_number, cp.location, cp.status
30 JOIN biblio.peer_bib_copy_map pbcm ON (pbcm.target_copy = cp.id)
31 JOIN actor.org_unit a ON (cp.circ_lib = a.id)
32 JOIN asset.copy_location cl ON (cp.location = cl.id)
33 JOIN config.copy_status cs ON (cp.status = cs.id)
41 INSERT INTO asset.opac_visible_copies (copy_id, circ_lib, record)
42 SELECT id, circ_lib, record FROM (
48 remove_query := $$ DELETE FROM asset.opac_visible_copies WHERE copy_id IN ( SELECT id FROM asset.copy WHERE $$;
50 IF TG_TABLE_NAME = 'peer_bib_copy_map' THEN
51 IF TG_OP = 'INSERT' THEN
52 add_peer_query := add_peer_query || ' AND cp.id = ' || NEW.target_copy || ' AND pbcm.peer_record = ' || NEW.peer_record;
53 EXECUTE add_front || add_peer_query || add_back;
56 remove_query := 'DELETE FROM asset.opac_visible_copies WHERE copy_id = ' || OLD.target_copy || ' AND record = ' || OLD.peer_record || ';';
62 IF TG_OP = 'INSERT' THEN
64 IF TG_TABLE_NAME IN ('copy', 'unit') THEN
65 add_base_query := add_base_query || ' AND cp.id = ' || NEW.id;
66 EXECUTE add_front || add_base_query || add_back;
73 -- handle items first, since with circulation activity
74 -- their statuses change frequently
75 IF TG_TABLE_NAME IN ('copy', 'unit') THEN
77 IF OLD.location <> NEW.location OR
78 OLD.call_number <> NEW.call_number OR
79 OLD.status <> NEW.status OR
80 OLD.circ_lib <> NEW.circ_lib THEN
81 -- any of these could change visibility, but
82 -- we'll save some queries and not try to calculate
83 -- the change directly
88 IF OLD.deleted <> NEW.deleted THEN
96 IF OLD.opac_visible <> NEW.opac_visible THEN
97 IF OLD.opac_visible THEN
99 ELSIF NOT do_remove THEN -- handle edge case where deleted item
100 -- is also marked opac_visible
108 DELETE FROM asset.opac_visible_copies WHERE copy_id = NEW.id;
111 add_base_query := add_base_query || ' AND cp.id = ' || NEW.id;
112 add_peer_query := add_peer_query || ' AND cp.id = ' || NEW.id;
113 EXECUTE add_front || add_base_query || ' UNION ' || add_peer_query || add_back;
120 IF TG_TABLE_NAME IN ('call_number', 'record_entry') THEN -- these have a 'deleted' column
122 IF OLD.deleted AND NEW.deleted THEN -- do nothing
126 ELSIF NEW.deleted THEN -- remove rows
128 IF TG_TABLE_NAME = 'call_number' THEN
129 DELETE FROM asset.opac_visible_copies WHERE copy_id IN (SELECT id FROM asset.copy WHERE call_number = NEW.id);
130 ELSIF TG_TABLE_NAME = 'record_entry' THEN
131 DELETE FROM asset.opac_visible_copies WHERE record = NEW.id;
136 ELSIF OLD.deleted THEN -- add rows
138 IF TG_TABLE_NAME = 'call_number' THEN
139 add_base_query := add_base_query || ' AND cn.id = ' || NEW.id;
140 EXECUTE add_front || add_base_query || add_back;
141 ELSIF TG_TABLE_NAME = 'record_entry' THEN
142 add_base_query := add_base_query || ' AND cn.record = ' || NEW.id;
143 add_peer_query := add_peer_query || ' AND pbcm.peer_record = ' || NEW.id;
144 EXECUTE add_front || add_base_query || ' UNION ' || add_peer_query || add_back;
153 IF TG_TABLE_NAME = 'call_number' THEN
155 IF OLD.record <> NEW.record THEN
156 -- call number is linked to different bib
157 remove_query := remove_query || 'call_number = ' || NEW.id || ');';
158 EXECUTE remove_query;
159 add_base_query := add_base_query || ' AND cn.id = ' || NEW.id;
160 EXECUTE add_front || add_base_query || add_back;
167 IF TG_TABLE_NAME IN ('record_entry') THEN
168 RETURN NEW; -- don't have 'opac_visible'
171 -- actor.org_unit, asset.copy_location, asset.copy_status
172 IF NEW.opac_visible = OLD.opac_visible THEN -- do nothing
176 ELSIF NEW.opac_visible THEN -- add rows
178 IF TG_TABLE_NAME = 'org_unit' THEN
179 add_base_query := add_base_query || ' AND cp.circ_lib = ' || NEW.id;
180 add_peer_query := add_peer_query || ' AND cp.circ_lib = ' || NEW.id;
181 ELSIF TG_TABLE_NAME = 'copy_location' THEN
182 add_base_query := add_base_query || ' AND cp.location = ' || NEW.id;
183 add_peer_query := add_peer_query || ' AND cp.location = ' || NEW.id;
184 ELSIF TG_TABLE_NAME = 'copy_status' THEN
185 add_base_query := add_base_query || ' AND cp.status = ' || NEW.id;
186 add_peer_query := add_peer_query || ' AND cp.status = ' || NEW.id;
189 EXECUTE add_front || add_base_query || ' UNION ' || add_peer_query || add_back;
193 IF TG_TABLE_NAME = 'org_unit' THEN
194 remove_query := 'DELETE FROM asset.opac_visible_copies WHERE circ_lib = ' || NEW.id || ';';
195 ELSIF TG_TABLE_NAME = 'copy_location' THEN
196 remove_query := remove_query || 'location = ' || NEW.id || ');';
197 ELSIF TG_TABLE_NAME = 'copy_status' THEN
198 remove_query := remove_query || 'status = ' || NEW.id || ');';
201 EXECUTE remove_query;
207 $func$ LANGUAGE PLPGSQL;