RAISE INFO '% incumbent collisions', incumbent_collision_count;
END
$function$ LANGUAGE plpgsql;
+
+-- convenience function for handling patron barcode/usrname collisions in actor_usr_legacy
+-- this should be ran prior to populating actor_card
+
+CREATE OR REPLACE FUNCTION migration_tools.handle_actor_barcode_collisions(migration_schema TEXT) RETURNS VOID AS $function$
+DECLARE
+ x_barcode TEXT;
+ x_id BIGINT;
+ row_count NUMERIC;
+ internal_collision_count NUMERIC := 0;
+ incumbent_barcode_collision_count NUMERIC := 0;
+ incumbent_usrname_collision_count NUMERIC := 0;
+BEGIN
+ FOR x_barcode IN SELECT usrname FROM actor_usr_legacy WHERE x_migrate GROUP BY 1 HAVING COUNT(*) > 1
+ LOOP
+ FOR x_id IN SELECT id FROM actor_usr_legacy WHERE x_migrate AND usrname = x_barcode
+ LOOP
+ UPDATE actor_usr_legacy SET usrname = migration_schema || '_internal_collision_' || id || '_' || usrname WHERE id = x_id;
+ GET DIAGNOSTICS row_count = ROW_COUNT;
+ internal_collision_count := internal_collision_count + row_count;
+ END LOOP;
+ END LOOP;
+ RAISE INFO '% internal usrname/barcode collisions', internal_collision_count;
+
+ FOR x_barcode IN
+ SELECT a.barcode FROM actor.card a, actor_usr_legacy b WHERE x_migrate AND a.barcode = b.usrname
+ LOOP
+ FOR x_id IN SELECT DISTINCT id FROM actor_usr_legacy WHERE x_migrate AND usrname = x_barcode
+ LOOP
+ UPDATE actor_usr_legacy SET usrname = migration_schema || '_incumbent_barcode_collision_' || id || '_' || usrname WHERE id = x_id;
+ GET DIAGNOSTICS row_count = ROW_COUNT;
+ incumbent_barcode_collision_count := incumbent_barcode_collision_count + row_count;
+ END LOOP;
+ END LOOP;
+ RAISE INFO '% incumbent barcode collisions', incumbent_barcode_collision_count;
+
+ FOR x_barcode IN
+ SELECT a.usrname FROM actor.usr a, actor_usr_legacy b WHERE x_migrate AND a.deleted IS FALSE AND a.usrname = b.usrname
+ LOOP
+ FOR x_id IN SELECT DISTINCT id FROM actor_usr_legacy WHERE x_migrate AND usrname = x_barcode
+ LOOP
+ UPDATE actor_usr_legacy SET usrname = migration_schema || '_incumbent_usrname_collision_' || id || '_' || usrname WHERE id = x_id;
+ GET DIAGNOSTICS row_count = ROW_COUNT;
+ incumbent_usrname_collision_count := incumbent_usrname_collision_count + row_count;
+ END LOOP;
+ END LOOP;
+ RAISE INFO '% incumbent usrname collisions (post barcode collision munging)', incumbent_usrname_collision_count;
+END
+$function$ LANGUAGE plpgsql;