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forgejo/models/db/iterate.go

35 lines
754 B

// 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
}
}
}
}