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laktek/gist:34558

Created December 11, 2008 00:48
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#check if at least one child has content - i.e. given a list of booleans, at least one is true?
inject(false) { |one_child_has_content, child| one_child_has_content || child.has_content? }
#check if all the constraints are true - i.e. given a list of booleans, all of them are true?
@constraints.inject(true) { |accepted, constraint| accepted && constraint.check(result) }
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