method

url_for

v1.2.6 - Show latest stable - 0 notes - Class: ActionController::UrlWriter

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What's this?

url_for(options) public

Generate a url with the provided options. The following special options may effect the constructed url:

  * :host Specifies the host the link should be targetted at. This option
    must be provided either explicitly, or via default_url_options.
  * :protocol The protocol to connect to. Defaults to 'http'
  * :port Optionally specify the port to connect to.

Show source

# File actionpack/lib/action_controller/url_rewriter.rb, line 40
    def url_for(options)
      options = self.class.default_url_options.merge(options)
      
      url = ''
      unless options.delete :only_path
        url << (options.delete(:protocol) || 'http')
        url << '://'
        
        raise "Missing host to link to! Please provide :host parameter or set default_url_options[:host]" unless options[:host]
        url << options.delete(:host)
        url << ":#{options.delete(:port)}" if options.key?(:port)
      else
        # Delete the unused options to prevent their appearance in the query string
        [:protocol, :host, :port].each { |k| options.delete k }
      end
      anchor = "##{options.delete(:anchor)}" if options.key?(:anchor)
      url << Routing::Routes.generate(options, {})
      return "#{url}#{anchor}"
    end

url_for

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