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-rw-r--r--models/db/iterate.go34
1 files changed, 34 insertions, 0 deletions
diff --git a/models/db/iterate.go b/models/db/iterate.go
new file mode 100644
index 0000000000..3d4fa06eeb
--- /dev/null
+++ b/models/db/iterate.go
@@ -0,0 +1,34 @@
+// Copyright 2022 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 db
+
+import (
+ "context"
+
+ "code.gitea.io/gitea/modules/setting"
+)
+
+// IterateObjects iterate all the Bean object
+func IterateObjects[Object any](ctx context.Context, f func(repo *Object) error) error {
+ var start int
+ batchSize := setting.Database.IterateBufferSize
+ sess := GetEngine(ctx)
+ for {
+ repos := make([]*Object, 0, batchSize)
+ if err := sess.Limit(batchSize, start).Find(&repos); err != nil {
+ return err
+ }
+ if len(repos) == 0 {
+ return nil
+ }
+ start += len(repos)
+
+ for _, repo := range repos {
+ if err := f(repo); err != nil {
+ return err
+ }
+ }
+ }
+}