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2011 Feb 16
5
validates_inclusion_of with range on ruby 1.9
I found out today that Range#include? behaves differently on 1.9 than on 1.8 ( http://rhnh.net/2009/08/03/range-include-in-ruby-1-9 )
In order to deal with various edge cases, instead of just checking whether range.first <= value <= range.last, in ruby 1.9 include? steps through all the values in the range, checking for equality.
This is of course a lot slower - in my case, checking a date