catstodon/db/migrate/20161006213403_rails_settings_migration.rb
Claire b358229834
Further preparation for Rails 6 (#15916)
* Use ActiveRecord::Result#to_ary instead of deprecated to_hash

They do the same thing, and to_hash has been removed from Rails 6.1

* Explicitly name polymorphic indexes to workaround a bug in Rails 6.1

cf. https://github.com/rails/rails/issues/41693

* Fix incorrect usage of “foreign_key” in migration script

* Use `ActiveModel::Errors#delete` instead of deprecated clear method

* Fix link headers tests on Rails 6.1

Rails 6.1 adds values to the Link header by default, thus it is not a
LinkHeader object anymore. Fix the test to parse the Link header instead
of assuming it is a LinkHeader.
2021-03-19 02:45:34 +01:00

21 lines
588 B
Ruby

MIGRATION_BASE_CLASS = if ActiveRecord::VERSION::MAJOR >= 5
ActiveRecord::Migration[5.0]
else
ActiveRecord::Migration[4.2]
end
class RailsSettingsMigration < MIGRATION_BASE_CLASS
def self.up
create_table :settings do |t|
t.string :var, null: false
t.text :value
t.references :target, null: false, polymorphic: true, index: { name: 'index_settings_on_target_type_and_target_id' }
t.timestamps null: true
end
add_index :settings, [ :target_type, :target_id, :var ], unique: true
end
def self.down
drop_table :settings
end
end