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2000628
2007 Jul 03
5
HOW TO: Easily output alternating item styles via metaprogramming
I always need to apply alternating item styles when outputting a collection,
here''s what I''ve been using recently.
In the app helper I define this method:
def alternate(items,alt=false
items.map{|i| i.class}.each { |k| k.class_eval {attr_accessor :alt}}
items.each { |i| i.alt, alt = alt, !alt }
end
When I call the partial I wrap the collection with this method: