Instance methods (130) add_belongs_to add_check_constraint add_column add_column_for_alter add_column_options! (<= v4.0.2) add_columns add_foreign_key add_index add_index_options add_index_sort_order add_options_for_index_columns add_order_by_for_associatio... (<= v2.3.8) add_reference add_timestamps add_timestamps_for_alter assume_migrated_upto_version build_add_column_definition build_change_col