discourse/db/post_migrate/20220512011531_backfill_pol...

23 lines
593 B
Ruby

# frozen_string_literal: true
class BackfillPolymorphicBookmarks < ActiveRecord::Migration[7.0]
def up
DB.exec(<<~SQL)
UPDATE bookmarks
SET bookmarkable_id = post_id, bookmarkable_type = 'Post'
WHERE NOT bookmarks.for_topic AND bookmarkable_id IS NULL
SQL
DB.exec(<<~SQL)
UPDATE bookmarks
SET bookmarkable_id = posts.topic_id, bookmarkable_type = 'Topic'
FROM posts
WHERE bookmarks.for_topic AND posts.id = bookmarks.post_id AND bookmarkable_id IS NULL
SQL
end
def down
raise ActiveRecord::IrreversibleMigration
end
end