Module: Taxonomite::Tree::ClassMethods

Defined in:

lib/taxonomite/tree.rb

Instance Method Summary

• #leaves ⇒ Object

  find all leaves fro this tree (Mongoid query).

• #roots ⇒ Object

  find all roots for this tree (Mongoid query) this would be class wide!!.

Instance Method Details

#leaves ⇒ Object

find all leaves fro this tree (Mongoid query)

# File 'lib/taxonomite/tree.rb', line 32

def leaves
  where(:_id.nin => only(:parent_id).collect(&:parent_id))
end

#roots ⇒ Object

find all roots for this tree (Mongoid query) this would be class wide!!

# File 'lib/taxonomite/tree.rb', line 26

def roots
  where(:parent_id => nil)
end