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dburger/gist:127402

Created June 10, 2009 18:25
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gistfile1.rb
u = Unit.find(123)
u.position #=> 14
u.position = "14"
u.position_changed? #=> false
u = Unit.find(42)
u.position #=> 0
u.position = "0"
u.position_changed? #=> true
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