6 files changed, 47 insertions, 0 deletions
diff --git a/modules/notification/action/action.go b/modules/notification/action/action.go
index 360906f076..836cb51b3e 100644
--- a/modules/notification/action/action.go
+++ b/modules/notification/action/action.go
@@ -275,6 +275,26 @@ func (*actionNotifier) NotifyMergePullRequest(pr *models.PullRequest, doer *mode
 	}
 }
 
+func (*actionNotifier) NotifyPullRevieweDismiss(doer *models.User, review *models.Review, comment *models.Comment) {
+	reviewerName := review.Reviewer.Name
+	if len(review.OriginalAuthor) > 0 {
+		reviewerName = review.OriginalAuthor
+	}
+	if err := models.NotifyWatchers(&models.Action{
+		ActUserID: doer.ID,
+		ActUser:   doer,
+		OpType:    models.ActionPullReviewDismissed,
+		Content:   fmt.Sprintf("%d|%s|%s", review.Issue.Index, reviewerName, comment.Content),
+		RepoID:    review.Issue.Repo.ID,
+		Repo:      review.Issue.Repo,
+		IsPrivate: review.Issue.Repo.IsPrivate,
+		CommentID: comment.ID,
+		Comment:   comment,
+	}); err != nil {
+		log.Error("NotifyWatchers [%d]: %v", review.Issue.ID, err)
+	}
+}
+
 func (a *actionNotifier) NotifyPushCommits(pusher *models.User, repo *models.Repository, opts *repository.PushUpdateOptions, commits *repository.PushCommits) {
 	data, err := json.Marshal(commits)
 	if err != nil {
diff --git a/modules/notification/base/notifier.go b/modules/notification/base/notifier.go
index b01026dfc5..5bb833d275 100644
--- a/modules/notification/base/notifier.go
+++ b/modules/notification/base/notifier.go
@@ -39,6 +39,7 @@ type Notifier interface {
 	NotifyPullRequestCodeComment(pr *models.PullRequest, comment *models.Comment, mentions []*models.User)
 	NotifyPullRequestChangeTargetBranch(doer *models.User, pr *models.PullRequest, oldBranch string)
 	NotifyPullRequestPushCommits(doer *models.User, pr *models.PullRequest, comment *models.Comment)
+	NotifyPullRevieweDismiss(doer *models.User, review *models.Review, comment *models.Comment)
 
 	NotifyCreateIssueComment(doer *models.User, repo *models.Repository,
 		issue *models.Issue, comment *models.Comment, mentions []*models.User)
diff --git a/modules/notification/base/null.go b/modules/notification/base/null.go
index d80ba859f3..2386f925ce 100644
--- a/modules/notification/base/null.go
+++ b/modules/notification/base/null.go
@@ -62,6 +62,10 @@ func (*NullNotifier) NotifyPullRequestChangeTargetBranch(doer *models.User, pr *
 func (*NullNotifier) NotifyPullRequestPushCommits(doer *models.User, pr *models.PullRequest, comment *models.Comment) {
 }
 
+// NotifyPullRevieweDismiss notifies when a review was dismissed by repo admin
+func (*NullNotifier) NotifyPullRevieweDismiss(doer *models.User, review *models.Review, comment *models.Comment) {
+}
+
 // NotifyUpdateComment places a place holder function
 func (*NullNotifier) NotifyUpdateComment(doer *models.User, c *models.Comment, oldContent string) {
 }
diff --git a/modules/notification/mail/mail.go b/modules/notification/mail/mail.go
index ee8a0c436c..f984ea7661 100644
--- a/modules/notification/mail/mail.go
+++ b/modules/notification/mail/mail.go
@@ -152,6 +152,12 @@ func (m *mailNotifier) NotifyPullRequestPushCommits(doer *models.User, pr *model
 	m.NotifyCreateIssueComment(doer, comment.Issue.Repo, comment.Issue, comment, nil)
 }
 
+func (m *mailNotifier) NotifyPullRevieweDismiss(doer *models.User, review *models.Review, comment *models.Comment) {
+	if err := mailer.MailParticipantsComment(comment, models.ActionPullReviewDismissed, review.Issue, []*models.User{}); err != nil {
+		log.Error("MailParticipantsComment: %v", err)
+	}
+}
+
 func (m *mailNotifier) NotifyNewRelease(rel *models.Release) {
 	if err := rel.LoadAttributes(); err != nil {
 		log.Error("NotifyNewRelease: %v", err)
diff --git a/modules/notification/notification.go b/modules/notification/notification.go
index 7ced57ce2d..d22d157bec 100644
--- a/modules/notification/notification.go
+++ b/modules/notification/notification.go
@@ -108,6 +108,13 @@ func NotifyPullRequestPushCommits(doer *models.User, pr *models.PullRequest, com
 	}
 }
 
+// NotifyPullRevieweDismiss notifies when a review was dismissed by repo admin
+func NotifyPullRevieweDismiss(doer *models.User, review *models.Review, comment *models.Comment) {
+	for _, notifier := range notifiers {
+		notifier.NotifyPullRevieweDismiss(doer, review, comment)
+	}
+}
+
 // NotifyUpdateComment notifies update comment to notifiers
 func NotifyUpdateComment(doer *models.User, c *models.Comment, oldContent string) {
 	for _, notifier := range notifiers {
diff --git a/modules/notification/ui/ui.go b/modules/notification/ui/ui.go
index 8e510e9cd4..25ea4d91c6 100644
--- a/modules/notification/ui/ui.go
+++ b/modules/notification/ui/ui.go
@@ -161,6 +161,15 @@ func (ns *notificationService) NotifyPullRequestPushCommits(doer *models.User, p
 	_ = ns.issueQueue.Push(opts)
 }
 
+func (ns *notificationService) NotifyPullRevieweDismiss(doer *models.User, review *models.Review, comment *models.Comment) {
+	var opts = issueNotificationOpts{
+		IssueID:              review.IssueID,
+		NotificationAuthorID: doer.ID,
+		CommentID:            comment.ID,
+	}
+	_ = ns.issueQueue.Push(opts)
+}
+
 func (ns *notificationService) NotifyIssueChangeAssignee(doer *models.User, issue *models.Issue, assignee *models.User, removed bool, comment *models.Comment) {
 	if !removed {
 		var opts = issueNotificationOpts{