module Xylem::ClassMethods
Public Instance Methods
leaves()
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# File lib/xylem.rb, line 70 def leaves where.not(id: select(:parent_id).where.not(parent_id: nil)) end
root()
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# File lib/xylem.rb, line 62 def root roots.first end
roots()
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# File lib/xylem.rb, line 66 def roots where(parent: nil) end