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path: root/actionpack/lib/action_dispatch/http/parameters.rb
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module ActionDispatch
  module Http
    module Parameters
      PARAMETERS_KEY = 'action_dispatch.request.path_parameters'

      # Returns both GET and POST \parameters in a single hash.
      def parameters
        params = get_header("action_dispatch.request.parameters")
        return params if params

        params = begin
                   request_parameters.merge(query_parameters)
                 rescue EOFError
                   query_parameters.dup
                 end
        params.merge!(path_parameters)
        set_header("action_dispatch.request.parameters", params)
        params
      end
      alias :params :parameters

      def path_parameters=(parameters) #:nodoc:
        delete_header('action_dispatch.request.parameters')
        set_header PARAMETERS_KEY, parameters
      end

      # Returns a hash with the \parameters used to form the \path of the request.
      # Returned hash keys are strings:
      #
      #   {'action' => 'my_action', 'controller' => 'my_controller'}
      def path_parameters
        get_header(PARAMETERS_KEY) || {}
      end
    end
  end
end