ruleby_spike.rb

  class Automation::RulePatternFactory < Ruleby::Rulebook
    include Ruleby

    def patterns_from rules = []
      @rules = rules
      build_rules
    end

    protected

    def build_rules

      @rules.each do |r|

        klass     = r.entity_type.constantize
        klass_ref = r.entity_type.delete( r.entity_type.tr '^:', '' ).underscore.to_sym

        pattern   = [klass, klass_ref, -> { m.id == r.entity_id }]

        if r.conditions.nil? || r.conditions.empty?
          pattern
        else
          r.conditions.each { |c| pattern << [klass, klass_ref, -> {m.send(c.key) == c.value}] }
          pattern
        end

      end

    end

  end