I usually create an array with the category ID that I don’t want and modify the category importer to skip those categories and makes sure that the topic importer skips topics if the category doesn’t exist.
Which file(s) should I modify? Is such a modification quick and straightforward or does it need work to be functional?
If I can avoid re-importing my forum I’d prefer though.
Also, I noticed that after moving some posts with Topic.where(category_id: XX).update_all(category_id: YY) the number of messages was not updated and it seems that it couldn’t be either from sidekiq tasks. Also, it moved the “about this category” topic which can’t be deleted.