mastodon/db/post_migrate/20241205135925_remove_legacy_user_settings_columns.rb

31 lines
940 B
Ruby

# frozen_string_literal: true
class RemoveLegacyUserSettingsColumns < ActiveRecord::Migration[7.2]
disable_ddl_transaction!
def up
# In normal usage this should not find anything to delete
# Deletion here is already done in RemoveLegacyUserSettingsData migration
# and no data like this should be created from app at this point
# Deleting again out of caution
connection.execute(<<~SQL.squish)
DELETE FROM settings
WHERE
thing_type IS NOT NULL
AND thing_id IS NOT NULL
SQL
add_index :settings, :var, unique: true, algorithm: :concurrently
remove_index :settings, [:thing_type, :thing_id, :var], name: :index_settings_on_thing_type_and_thing_id_and_var, unique: true
safety_assured do
remove_column :settings, :thing_type, :string
remove_column :settings, :thing_id, :bigint
end
end
def down
raise ActiveRecord::IrreversibleMigration
end
end