Split migrations folder (#21549)

There are too many files in `models/migrations` folder so that I split
them into sub folders.

1 files changed, 18 insertions, 0 deletions

diff --git a/models/migrations/v1_16/v203.go b/models/migrations/v1_16/v203.go
new file mode 100644
index 0000000000..78903cb595
--- /dev/null
+++ b/models/migrations/v1_16/v203.go
@@ -0,0 +1,18 @@
+// Copyright 2021 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 v1_16 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddProjectIssueSorting(x *xorm.Engine) error {
+	// ProjectIssue saves relation from issue to a project
+	type ProjectIssue struct {
+		Sorting int64 `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	return x.Sync2(new(ProjectIssue))
+}