destroy (ActiveRecord::Base)

    # File lib/active_record/base.rb, line 2418
          def destroy
            unless new_record?
              connection.delete(
                "DELETE FROM #{self.class.quoted_table_name} " +
                "WHERE #{connection.quote_column_name(self.class.primary_key)} = #{quoted_id}",
                "#{self.class.name} Destroy"
              )
            end

            freeze
          end