Module: MongoTree::Base::InstanceMethods

Defined in:
lib/mongo_tree/base.rb

Instance Method Summary collapse

Instance Method Details

#ancestors ⇒ Object 



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# File 'lib/mongo_tree/base.rb', line 37

def ancestors
  collected = []
  current = self.parent

  until current.nil?
    collected << current
    current = current.parent
  end

  collected
end

#children ⇒ Object 



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# File 'lib/mongo_tree/base.rb', line 29

def children
  MongoTree::Children.new(self.class.all(:parent_id => self.id), self)
end

#children=(nodes) ⇒ Object 



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# File 'lib/mongo_tree/base.rb', line 33

def children=(nodes)
  nodes.each{ |node| children << node }
end

#depth ⇒ Object 



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# File 'lib/mongo_tree/base.rb', line 25

def depth
  ancestors.length
end

#descendants ⇒ Object 



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# File 'lib/mongo_tree/base.rb', line 49

def descendants
  collected = []
  nodes = self.children

  until nodes.empty?
    current = nodes.shift
    collected << current
    nodes += current.children
  end

  collected
end

#root ⇒ Object 



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# File 'lib/mongo_tree/base.rb', line 15

def root
  current = self

  until current.parent.nil?
    current = current.parent
  end

  current
end