Popp
/*
Poppy list migration
There was a breaking change between P and Q, where certain fields in queries need to be fixed in order to make the lists editable
This script updates lists to account for this change. It is only needed if lists were created in Poppy that use any of the "ID" fields listed below
in the "mappings" CTE
Usage
1. Set the tenant ID in the search path, below
2. Run the script. This should only take a few seconds
- Optionally, leave off the "COMMIT" statement at the end, to verify that the only impacted records are ones using
one or more field from the "mappings" CTE below
- For any affected lists:
- in the list_details table:
- the query in the fql_query column should use the "name" field instead of the "ID" field
- the updated_date column should be set to the current time when you ran the script
- the version column should be incremented from its previous value
- in the list_versions table:
- there should be an old record with the old version of the list, with the old values for the fql_query, updated_date, and version columns
- there should be a new record for the updated list, with an updated fql_query, updated_date, and version columns
- No other records should be affected.
- If anything looks wrong, execute a "ROLLBACK" statement to undo all of the changes from the script
- If it all looks good, execute the "COMMIT" statement to commit all of the changes to the DB
If you get an error with gen_random_uuid(), run this:
SET search_path TO public;
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
*/
-- Replace <tenant ID> with the relevant tenant ID here!
SET search_path TO '<tenant ID>_mod_lists', public;
BEGIN TRANSACTION;
WITH RECURSIVE
mappings(id, name) AS
(VALUES ('item_level_call_number_typeid', 'item_level_call_number_type_name'),
('item_effective_call_number_typeid', 'item_effective_call_number_type_name'),
('item_effective_library_id', 'item_effective_library_name'),
('item_effective_location_id', 'item_effective_location_name'),
('item_material_type_id', 'item_material_type'),
('item_permanent_location_id', 'item_permanent_location_name'),
('item_temporary_location_id', 'item_temporary_location_name'),
('item_material_type_id', 'item_material_type'),
('loan_checkin_servicepoint_id', 'loan_checkin_servicepoint_name'),
('loan_checkout_servicepoint_id', 'loan_checkout_servicepoint_name'),
('loan_policy_id', 'loan_policy_name'),
('user_patron_group_id', 'user_patron_group')),
-- Create a recursive CTE to apply all mappings
update_cte AS (SELECT id,
fql_query AS original_fql_query,
fql_query AS updated_fql_query,
0 AS iteration
FROM list_details
WHERE is_deleted = false
UNION ALL
SELECT uc.id,
uc.original_fql_query,
regexp_replace(uc.updated_fql_query, '\m' || m.id || '\M', m.name, 'g'),
uc.iteration + 1
FROM update_cte uc
JOIN mappings m ON uc.updated_fql_query LIKE '%' || m.id || '%'
WHERE uc.iteration < (SELECT COUNT(*) FROM mappings)),
-- Create another CTE to hold only the actual updated queries
final_update AS (SELECT DISTINCT ON (id) id,
updated_fql_query
FROM update_cte
WHERE original_fql_query != updated_fql_query
ORDER BY id, iteration DESC)
-- Insert updated rows into list_versions
INSERT
INTO list_versions
SELECT gen_random_uuid() AS id,
ld.name,
ld.description,
fu.updated_fql_query AS fql_query,
ld.user_friendly_query,
ld.fields,
ld.updated_by,
ld.updated_by_username,
CURRENT_TIMESTAMP AS updated_date,
ld.is_active,
ld.is_private,
ld.version + 1,
ld.id AS list_id
FROM list_details ld
JOIN final_update fu ON ld.id = fu.id;
-- Copy the updated data from list_versions into list_details
UPDATE list_details ld
SET fql_query = lv.fql_query,
version = lv.version,
updated_date = lv.updated_date
FROM list_versions lv
WHERE ld.id = lv.list_id
AND ld.fql_query != lv.fql_query
AND lv.version = ld.version + 1;
-- ROLLBACK;
COMMIT;