Module: Sinatra::RoutingPlugin::RoutingHelpers

Defined in:
lib/sinatra/routing_plugin/routing_helpers.rb

Instance Method Summary collapse

Instance Method Details

#url_for(*route_name) ⇒ Object

Used to retrieve the full url for a given named route alias from the named_paths data Accepts parameters which will be substituted into the url if necessary url_for(:accounts) => ‘/accounts’ url_for(:account, :id => 5) => ‘/account/5’ url_for(:admin, show, :id => 5, :name => “demo”) => ‘/admin/path/5/demo’

Raises:



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# File 'lib/sinatra/routing_plugin/routing_helpers.rb', line 9

def url_for(*route_name)
  values = route_name.extract_options!
  mapped_url = self.class.named_paths[route_name] || self.class.named_paths[route_name.dup.unshift(self.class.app_name)]
  raise Sinatra::RouteNotFound.new("Route alias #{route_name.inspect} is not mapped to a url") unless mapped_url
  result_url = String.new(File.join(self.class.uri_root, mapped_url))
  result_url.scan(%r{/?(:\S+?)(?:/|$)}).each do |placeholder|
    value_key = placeholder[0][1..-1].to_sym
    result_url.gsub!(Regexp.new(placeholder[0]), values[value_key].to_s)
  end
  result_url
end