1 files changed, 38 insertions, 0 deletions
diff --git a/models/migrations/v159.go b/models/migrations/v159.go
new file mode 100644
index 0000000000..68043b9412
--- /dev/null
+++ b/models/migrations/v159.go
@@ -0,0 +1,38 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package migrations
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func updateReactionConstraint(x *xorm.Engine) error {
+	// Reaction represents a reactions on issues and comments.
+	type Reaction struct {
+		ID               int64              `xorm:"pk autoincr"`
+		Type             string             `xorm:"INDEX UNIQUE(s) NOT NULL"`
+		IssueID          int64              `xorm:"INDEX UNIQUE(s) NOT NULL"`
+		CommentID        int64              `xorm:"INDEX UNIQUE(s)"`
+		UserID           int64              `xorm:"INDEX UNIQUE(s) NOT NULL"`
+		OriginalAuthorID int64              `xorm:"INDEX UNIQUE(s) NOT NULL DEFAULT(0)"`
+		OriginalAuthor   string             `xorm:"INDEX UNIQUE(s)"`
+		CreatedUnix      timeutil.TimeStamp `xorm:"INDEX created"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := recreateTable(sess, &Reaction{}); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}