# File lib/sms_on_rails/activerecord_extensions/lockable_record.rb, line 8
    def self.extended(base)
      base.class_inheritable_hash :locrec_options

      base.locrec_options = {
        :log_lock_warnings => true,
        :columns => {
          :status        => 'status',
          :processed_on  => 'processed_on',
          :notes         => 'notes',
          :retry_count   => 'retry_count',
          :sub_status    => 'sub_status'
        },

        :status => {
          :not_processed => 'NOT_PROCESSED',
          :processed     => 'PROCESSED',
          :processing    => 'PROCESSING',
          :failed        => 'FAILED',
          :cancelled     => 'CANCELLED'
        }
      }

      base.send :include, InstanceMethods
      base.send :extend,  ClassMethods
    end