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module CollectiveIdea #:nodoc:
module Acts #:nodoc:
module NestedSet #:nodoc:
class Iterator
attr_reader :objects
def initialize(objects)
@objects = objects
end
def each_with_level
path = [nil]
objects.each do |o|
if o.parent_id != path.last
# we are on a new level, did we descend or ascend?
if path.include?(o.parent_id)
# remove wrong tailing paths elements
path.pop while path.last != o.parent_id
else
path << o.parent_id
end
end
yield(o, path.length - 1)
end
end
end
end
end
end
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