discourse/db/migrate/20140801052028_fix_incoming_links.rb
Sam Saffron 30990006a9 DEV: enable frozen string literal on all files
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.

Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
2019-05-13 09:31:32 +08:00

24 lines
674 B
Ruby

# frozen_string_literal: true
class FixIncomingLinks < ActiveRecord::Migration[4.2]
def up
execute "DROP INDEX incoming_index"
add_column :incoming_links, :post_id, :integer
remove_column :incoming_links, :updated_at
remove_column :incoming_links, :url
execute "UPDATE incoming_links l SET post_id = (
SELECT p.id FROM posts p WHERE p.topic_id = l.topic_id AND p.post_number = l.post_number
)"
execute "DELETE FROM incoming_links WHERE post_id IS NULL"
change_column :incoming_links, :post_id, :integer, null: false
add_index :incoming_links, :post_id
end
def down
raise ActiveRecord::IrreversibleMigration
end
end