The meanings of Asterisk (and Webby)

Ruby
1

Hi all!

I have a class that is used in a Webby page. The class needs to make
use of a function within three modules:

module Webby
module Helpers #:nodoc:
module UrlHelper

Since the function is an “instance”
function, I need to include the modules like so:

class Categoriser
include Webby::Helpers::UrlHelper

Later in my class I have (bear with me):

def render
…
html << %[

  • #{link_to_page(:title => r.title)}
    • ]

    link_to_page (within the three modules) looks like this:

    def link_to_page( args )
    self.link_to(    _find_page(args))
    end

    And gives me:
    NoMethodError Exception: undefined method `find’ for nil:NilClass

    I can’t find any reference to this usage of the asterisk, and
    I don’t know what the *_find_page does. Can anyone explain it to me?

    Les

    2

    On Feb 18, 2008 9:46 PM, Leslie V. [email protected] wrote:

    end

    And gives me:
    NoMethodError Exception: undefined method `find’ for nil:NilClass

    I can’t find any reference to this usage of the asterisk, and
    I don’t know what the *_find_page does. Can anyone explain it to me?

    It’s called the ‘splat’ operator.

    see e.g.

    http://redhanded.hobix.com/bits/theSiphoningSplat.html

    3

    Thanks! I now know splats!