models/ontology/distributed.rb

	distributed.rb revision 8abb7a3541206ef22ec2325834410ca2553a85c2
module Ontology::Distributed
  extend ActiveSupport::Concern

  included do
    acts_as_tree

    def self.homogeneous
      where("ontologies.type = 'DistributedOntology'").
        select { |ontology| ontology.homogeneous?}
    end

    def self.heterogeneous
      where("ontologies.type = 'DistributedOntology'").
        select { |ontology| ontology.heterogeneous?}
    end

  end

  def distributed?
    is_a? DistributedOntology
  end

  def homogeneous?
    return true unless distributed?
    return true unless self.children.any?
    base_logic = self.children.first.logic
    self.children.count == self.children.where(logic_id: base_logic).count
  end

  def heterogeneous?
    return false unless distributed?
    not homogeneous?
  end

end