# add the reviewers to notification

            recipients += [x.user for x in pull_request.reviewers]

            #set some variables for email notification

            email_kwargs = {

                'pr_id': pull_request.pull_request_id,

                'status_change': status_change,

                'pr_comment_url': _url,

                'pr_comment_user': h.person(user.email),

                'pr_target_repo': h.url('summary_home',

                                   repo_name=pull_request.other_repo.repo_name,

                                   qualified=True)

            }

        # create notification objects, and emails

        NotificationModel().create(

            created_by=user, subject=subj, body=body,

            recipients=recipients, type_=notification_type,

            email_kwargs=email_kwargs

        )

        mention_recipients = set(self._extract_mentions(body))\

                                .difference(recipients)

        if mention_recipients:

            subj = _('[Mention]') + ' ' + subj

            NotificationModel().create(

                created_by=user, subject=subj, body=body,

                recipients=mention_recipients,

                type_=notification_type,

            )

        return comment

    def delete(self, comment):

        """

        Deletes given comment

        :param comment_id:

        """

        comment = self.__get_changeset_comment(comment)

        self.sa.delete(comment)

        return comment

    def get_comments(self, repo_id, revision=None, pull_request=None):

        """

        Get's main comments based on revision or pull_request_id

        :param repo_id:

        :type repo_id:

        :param revision:

        :type revision:

        :param pull_request: