analytic.rb

  def apply_virtual_filters(operators)
    # loop through operators (mix of virtual and real operators)
    # if an operator is virtual, convert it to a real operator
    # return new list of operators
  end

  FilterOperator = Struct.new(:type, :value)

  def coerce_filters_to_operators(vals)
    operators = build_filter_operators(vals)
    apply_virtual_filters(operators)
  end