module ActiverecordCashier

# File lib/activerecord_cashier.rb, line 31
def demorph(*tags)
  tags.flatten!

  tags.map do |tag|
    if tag.index(PREFIX) == 0
      parts = tag[PREFIX.length..-1].split(DELIMITER)
      if parts.length == 1
        parts.first.constantize
      else parts.length == 2
        parts.first.constantize.find_by_id(parts.last.to_i)
      end
    else
      tag
    end
  end
end

# File lib/activerecord_cashier.rb, line 17
def morph(*tags)
  tags.flatten!

  tags.map do |tag|
    if tag.is_a? String
      tag
    elsif tag.is_a? Class
      PREFIX + tag.to_s
    elsif tag.is_a?(ActiveRecord::Base)
      "#{PREFIX}#{tag.class.to_s}#{DELIMITER}#{tag.try :id}"
    end          
  end.flatten
end