53 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			53 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Go
		
	
	
	
// Copyright 2020 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 migrations
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import (
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	"code.gitea.io/gitea/modules/log"
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	"xorm.io/xorm"
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)
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func recalculateStars(x *xorm.Engine) (err error) {
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	// because of issue https://github.com/go-gitea/gitea/issues/11949,
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	// recalculate Stars number for all users to fully fix it.
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	type User struct {
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		ID int64 `xorm:"pk autoincr"`
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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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	for start := 0; ; start += batchSize {
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		users := make([]User, 0, batchSize)
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		if err = sess.Limit(batchSize, start).Where("type = ?", 0).Cols("id").Find(&users); err != nil {
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			return
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		}
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		if len(users) == 0 {
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			break
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		}
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		if err = sess.Begin(); err != nil {
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			return
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		}
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		for _, user := range users {
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			if _, err = sess.Exec("UPDATE `user` SET num_stars=(SELECT COUNT(*) FROM `star` WHERE uid=?) WHERE id=?", user.ID, user.ID); err != nil {
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				return
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			}
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		}
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		if err = sess.Commit(); err != nil {
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			return
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		}
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	}
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	log.Debug("recalculate Stars number for all user finished")
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	return
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}
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