1 files changed, 15 insertions, 0 deletions
diff --git a/models/error.go b/models/error.go
index 313c36354d..16be512139 100644
--- a/models/error.go
+++ b/models/error.go
@@ -1121,6 +1121,21 @@ func (err ErrNewIssueInsert) Error() string {
 	return err.OriginalError.Error()
 }
 
+// ErrForbiddenIssueReaction is used when a forbidden reaction was try to created
+type ErrForbiddenIssueReaction struct {
+	Reaction string
+}
+
+// IsErrForbiddenIssueReaction checks if an error is a ErrForbiddenIssueReaction.
+func IsErrForbiddenIssueReaction(err error) bool {
+	_, ok := err.(ErrForbiddenIssueReaction)
+	return ok
+}
+
+func (err ErrForbiddenIssueReaction) Error() string {
+	return fmt.Sprintf("'%s' is not an allowed reaction", err.Reaction)
+}
+
 // __________      .__  .__ __________                                     __
 // \______   \__ __|  | |  |\______   \ ____  ________ __   ____   _______/  |_
 //  |     ___/  |  \  | |  | |       _// __ \/ ____/  |  \_/ __ \ /  ___/\   __\