LP1724246: asset.cache_copy_visibility fix

When removing peer bib copy maps the visibility
cache wasn't updated correctly. This readjusts
the cache trigger to correct that.

Signed-off-by: Jason Boyer <JBoyer@library.in.gov>
Signed-off-by: Mike Rylander <miker@esilibrary.com>
Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>

diff --git a/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.lp1724246_cache_copy_visibility.sql b/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.lp1724246_cache_copy_visibility.sql
new file mode 100644 (file)
index 0000000..d41596e
--- /dev/null
+++ b/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.lp1724246_cache_copy_visibility.sql
@@ -0,0 +1,140 @@
+BEGIN;
+
+INSERT INTO config.upgrade_log (version, applied_to) VALUES ('1057', :eg_version); -- miker/gmcharlt/kmlussier
+
+CREATE OR REPLACE FUNCTION asset.cache_copy_visibility () RETURNS TRIGGER as $func$
+DECLARE
+    ocn     asset.call_number%ROWTYPE;
+    ncn     asset.call_number%ROWTYPE;
+    cid     BIGINT;
+BEGIN
+
+    IF TG_TABLE_NAME = 'peer_bib_copy_map' THEN -- Only needs ON INSERT OR DELETE, so handle separately
+        IF TG_OP = 'INSERT' THEN
+            INSERT INTO asset.copy_vis_attr_cache (record, target_copy, vis_attr_vector) VALUES (
+                NEW.peer_record,
+                NEW.target_copy,
+                asset.calculate_copy_visibility_attribute_set(NEW.target_copy)
+            );
+
+            RETURN NEW;
+        ELSIF TG_OP = 'DELETE' THEN
+            DELETE FROM asset.copy_vis_attr_cache
+              WHERE record = OLD.peer_record AND target_copy = OLD.target_copy;
+
+            RETURN OLD;
+        END IF;
+    END IF;
+
+    IF TG_OP = 'INSERT' THEN -- Handles ON INSERT. ON UPDATE is below.
+        IF TG_TABLE_NAME IN ('copy', 'unit') THEN
+            SELECT * INTO ncn FROM asset.call_number cn WHERE id = NEW.call_number;
+            INSERT INTO asset.copy_vis_attr_cache (record, target_copy, vis_attr_vector) VALUES (
+                ncn.record,
+                NEW.id,
+                asset.calculate_copy_visibility_attribute_set(NEW.id)
+            );
+        ELSIF TG_TABLE_NAME = 'record_entry' THEN
+            NEW.vis_attr_vector := biblio.calculate_bib_visibility_attribute_set(NEW.id);
+        END IF;
+
+        RETURN NEW;
+    END IF;
+
+    -- handle items first, since with circulation activity
+    -- their statuses change frequently
+    IF TG_TABLE_NAME IN ('copy', 'unit') THEN -- This handles ON UPDATE OR DELETE. ON INSERT above
+
+        IF TG_OP = 'DELETE' THEN -- Shouldn't get here, normally
+            DELETE FROM asset.copy_vis_attr_cache WHERE target_copy = OLD.id;
+            RETURN OLD;
+        END IF;
+
+        SELECT * INTO ncn FROM asset.call_number cn WHERE id = NEW.call_number;
+
+        IF OLD.deleted <> NEW.deleted THEN
+            IF NEW.deleted THEN
+                DELETE FROM asset.copy_vis_attr_cache WHERE target_copy = OLD.id;
+            ELSE
+                INSERT INTO asset.copy_vis_attr_cache (record, target_copy, vis_attr_vector) VALUES (
+                    ncn.record,
+                    NEW.id,
+                    asset.calculate_copy_visibility_attribute_set(NEW.id)
+                );
+            END IF;
+
+            RETURN NEW;
+        ELSIF OLD.call_number  <> NEW.call_number THEN
+            SELECT * INTO ocn FROM asset.call_number cn WHERE id = OLD.call_number;
+
+            IF ncn.record <> ocn.record THEN
+                UPDATE  biblio.record_entry
+                  SET   vis_attr_vector = biblio.calculate_bib_visibility_attribute_set(ncn.record)
+                  WHERE id = ocn.record;
+            END IF;
+        END IF;
+
+        IF OLD.location     <> NEW.location OR
+           OLD.status       <> NEW.status OR
+           OLD.opac_visible <> NEW.opac_visible OR
+           OLD.circ_lib     <> NEW.circ_lib
+        THEN
+            -- any of these could change visibility, but
+            -- we'll save some queries and not try to calculate
+            -- the change directly
+            UPDATE  asset.copy_vis_attr_cache
+              SET   target_copy = NEW.id,
+                    vis_attr_vector = asset.calculate_copy_visibility_attribute_set(NEW.id)
+              WHERE target_copy = OLD.id;
+
+        END IF;
+
+    ELSIF TG_TABLE_NAME = 'call_number' THEN -- Only ON UPDATE. Copy handler will deal with ON INSERT OR DELETE.
+
+        IF OLD.record <> NEW.record THEN
+            IF NEW.label = '##URI##' THEN
+                UPDATE  biblio.record_entry
+                  SET   vis_attr_vector = biblio.calculate_bib_visibility_attribute_set(OLD.record)
+                  WHERE id = OLD.record;
+
+                UPDATE  biblio.record_entry
+                  SET   vis_attr_vector = biblio.calculate_bib_visibility_attribute_set(NEW.record)
+                  WHERE id = NEW.record;
+            END IF;
+
+            UPDATE  asset.copy_vis_attr_cache
+              SET   record = NEW.record,
+                    vis_attr_vector = asset.calculate_copy_visibility_attribute_set(target_copy)
+              WHERE target_copy IN (SELECT id FROM asset.copy WHERE call_number = NEW.id)
+                    AND record = OLD.record;
+
+        ELSIF OLD.owning_lib <> NEW.owning_lib THEN
+            UPDATE  asset.copy_vis_attr_cache
+              SET   vis_attr_vector = asset.calculate_copy_visibility_attribute_set(target_copy)
+              WHERE target_copy IN (SELECT id FROM asset.copy WHERE call_number = NEW.id)
+                    AND record = NEW.record;
+
+            IF NEW.label = '##URI##' THEN
+                UPDATE  biblio.record_entry
+                  SET   vis_attr_vector = biblio.calculate_bib_visibility_attribute_set(OLD.record)
+                  WHERE id = OLD.record;
+            END IF;
+        END IF;
+
+    ELSIF TG_TABLE_NAME = 'record_entry' THEN -- Only handles ON UPDATE OR DELETE
+
+        IF TG_OP = 'DELETE' THEN -- Shouldn't get here, normally
+            DELETE FROM asset.copy_vis_attr_cache WHERE record = OLD.id;
+            RETURN OLD;
+        ELSIF OLD.source <> NEW.source THEN
+            NEW.vis_attr_vector := biblio.calculate_bib_visibility_attribute_set(NEW.id);
+        END IF;
+
+    END IF;
+
+    RETURN NEW;
+END;
+$func$ LANGUAGE PLPGSQL;
+
+COMMIT;
+