1 files changed, 15 insertions, 0 deletions
diff --git a/models/errors/issue.go b/models/errors/issue.go
index 4ea898fb..903cc977 100644
--- a/models/errors/issue.go
+++ b/models/errors/issue.go
@@ -6,6 +6,21 @@ package errors
 
 import "fmt"
 
+type IssueNotExist struct {
+	ID     int64
+	RepoID int64
+	Index  int64
+}
+
+func IsIssueNotExist(err error) bool {
+	_, ok := err.(IssueNotExist)
+	return ok
+}
+
+func (err IssueNotExist) Error() string {
+	return fmt.Sprintf("issue does not exist [id: %d, repo_id: %d, index: %d]", err.ID, err.RepoID, err.Index)
+}
+
 type InvalidIssueReference struct {
 	Ref string
 }