mirror of
https://github.com/discourse/discourse.git
synced 2024-12-30 15:43:42 +08:00
30990006a9
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
17 lines
317 B
Ruby
17 lines
317 B
Ruby
# frozen_string_literal: true
|
|
|
|
class RemoveInvalidTopicUser < ActiveRecord::Migration[4.2]
|
|
def up
|
|
execute <<-SQL
|
|
DELETE FROM topic_users
|
|
USING topic_users tu
|
|
LEFT JOIN users u ON u.id = tu.user_id
|
|
WHERE u.id IS NULL
|
|
AND topic_users.id = tu.id
|
|
SQL
|
|
end
|
|
|
|
def down
|
|
end
|
|
end
|