module Ardb; end class Ardb::Adapter; end class Ardb::Adapter::Base attr_reader :config_settings, :database def initialize @config_settings = Ardb.config.db_settings @database = Ardb.config.db.database end def foreign_key_add_sql(*args); raise NotImplementedError; end def foreign_key_drop_sql(*args); raise NotImplementedError; end def create_db(*args); raise NotImplementedError; end def drop_db(*args); raise NotImplementedError; end def drop_tables(*args); raise NotImplementedError; end def ==(other_adapter) self.class == other_adapter.class end end