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[csmu (Keith John Hutchison - Ceiteach Seán Mac Úistin)]

I ended up doing this via SQL.

Ordering categories using SQL

The following code changes the order of categories to be alphanumeric using SQL. Preconditions. Postgres backend UPDATE categories SET POSITION = subquery.position FROM ( SELECT POSITION , CASE WHEN category_id = 0 THEN parent_category_id ELSE category_id END category_id , CASE WHEN category_id = 0 THEN parent_category_name ELSE category_name END category_name FROM ( SELECT ROW_NUMBER - 1 AS POSITION , parent_category_id , parent_category_name , category_id , category_name F…