spec

# File activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb, line 19
        def spec
          case config
          when nil
            raise AdapterNotSpecified unless defined?(Rails.env)
            resolve_string_connection Rails.env
          when Symbol, String
            resolve_string_connection config.to_s
          when Hash
            resolve_hash_connection config
          end
        end