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# File 'lib/simple_tree.rb', line 9
def acts_as_simple_tree(options = {})
configuration = { :foreign_key => "parent_id", :order => nil, :counter_cache => nil }
configuration.update(options) if options.is_a?(Hash)
belongs_to :parent, :class_name => name, :foreign_key => configuration[:foreign_key], :counter_cache => configuration[:counter_cache]
has_many :children, :class_name => name, :foreign_key => configuration[:foreign_key], :order => configuration[:order], :dependent => :destroy
self.send(:include, SimpleTree::InstanceMethods)
end
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