collection_responder.rb
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	module Responders
	# This responder modifies your current responder to redirect
	# to the collection page on POST/PUT/DELETE.
	module CollectionResponder
	protected

	# Returns the collection location for redirecting after POST/PUT/DELETE.
	# This method, converts the following resources array to the following:
	#
	# [:admin, @post] #=> [:admin, :posts]
	# [@user, @post] #=> [@user, :posts]
	#
	# When these new arrays are given to redirect_to, it will generate the
	# proper URL pointing to the index action.
	#
	# [:admin, @post] #=> admin_posts_url
	# [@user, @post] #=> user_posts_url(@user.to_param)
	#
	def navigation_location
	return options[:location] if options[:location]
	klass = resources.last.class

	if klass.respond_to?(:model_name)
	resources[0...-1] << klass.model_name.route_key.to_sym
	else
	resources
	end
	end
	end
	end