append_suffix_type.rb

module Types
  class AppendSuffixType < ActiveRecord::Type::String
    def initialize(suffix)
      @suffix = suffix.to_s
    end

    def cast_value(value)
      value.to_s + @suffix unless value.nil?
    end

    def serialize(value)
      value.chomp(@suffix) unless value.nil?
    end

    def changed_in_place?(original_value_for_database, value)
      original_value_for_database != serialize(value)
    end
  end
end