new

# File activerecord/lib/active_record/dynamic_matchers.rb, line 52
        def initialize(model, method_name)
          @model           = model
          @name            = method_name.to_s
          @attribute_names = @name.match(self.class.pattern)[1].split("_and_")
          @attribute_names.map! { |name| @model.attribute_aliases[name] || name }
        end