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28 lines
1 KiB
Go
28 lines
1 KiB
Go
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// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package db
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import "xorm.io/builder"
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// CountOrphanedObjects count subjects with have no existing refobject anymore
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func CountOrphanedObjects(subject, refobject, joinCond string) (int64, error) {
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return GetEngine(DefaultContext).Table("`"+subject+"`").
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Join("LEFT", "`"+refobject+"`", joinCond).
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Where(builder.IsNull{"`" + refobject + "`.id"}).
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Select("COUNT(`" + subject + "`.`id`)").
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Count()
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}
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// DeleteOrphanedObjects delete subjects with have no existing refobject anymore
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func DeleteOrphanedObjects(subject, refobject, joinCond string) error {
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subQuery := builder.Select("`"+subject+"`.id").
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From("`"+subject+"`").
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Join("LEFT", "`"+refobject+"`", joinCond).
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Where(builder.IsNull{"`" + refobject + "`.id"})
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b := builder.Delete(builder.In("id", subQuery)).From("`" + subject + "`")
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_, err := GetEngine(DefaultContext).Exec(b)
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return err
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}
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