unscope!

# File activerecord/lib/active_record/relation/query_methods.rb, line 393
    def unscope!(*args) # :nodoc:
      args.flatten!
      self.unscope_values += args

      args.each do |scope|
        case scope
        when Symbol
          symbol_unscoping(scope)
        when Hash
          scope.each do |key, target_value|
            if key != :where
              raise ArgumentError, "Hash arguments in .unscope(*args) must have :where as the key."
            end

            Array(target_value).each do |val|
              where_unscoping(val)
            end
          end
        else
          raise ArgumentError, "Unrecognized scoping: #{args.inspect}. Use .unscope(where: :attribute_name) or .unscope(:order), for example."
        end
      end

      self
    end