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fff32e9469
Migrations should never use model structs directly, because the model structs can be different in different releases. e.g. if one migration uses "User" model, it works in the early releases, then one day, when the User model changes, the migration breaks because it will use the new (incorrect) User model, it should only use the old User model. The same to "modules/structs". --------- Signed-off-by: wxiaoguang <wxiaoguang@gmail.com> Co-authored-by: delvh <dev.lh@web.de>
54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package v1_14
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import "gitea.dev/modelmigration/base"
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func FixRepoTopics(x base.EngineMigration) error {
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type Repository struct {
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ID int64 `xorm:"pk autoincr"`
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Topics []string `xorm:"TEXT JSON"`
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}
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const batchSize = 100
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sess := x.NewSession()
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defer sess.Close()
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repos := make([]*Repository, 0, batchSize)
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topics := make([]string, 0, batchSize)
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for start := 0; ; start += batchSize {
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repos = repos[:0]
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if err := sess.Begin(); err != nil {
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return err
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}
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if err := sess.Limit(batchSize, start).Find(&repos); err != nil {
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return err
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}
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if len(repos) == 0 {
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break
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}
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for _, repo := range repos {
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topics = topics[:0]
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if err := sess.Select("name").Table("topic").
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Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id").
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Where("repo_topic.repo_id = ?", repo.ID).Desc("topic.repo_count").Find(&topics); err != nil {
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return err
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}
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repo.Topics = topics
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if _, err := sess.ID(repo.ID).Cols("topics").Update(repo); err != nil {
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return err
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}
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}
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if err := sess.Commit(); err != nil {
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return err
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}
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}
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return nil
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}
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