71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
// Copyright 2018 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 (
|
|
"fmt"
|
|
"regexp"
|
|
|
|
"code.gitea.io/gitea/modules/setting"
|
|
)
|
|
|
|
// CountBadSequences looks for broken sequences from recreate-table mistakes
|
|
func CountBadSequences() (int64, error) {
|
|
if !setting.Database.UsePostgreSQL {
|
|
return 0, nil
|
|
}
|
|
|
|
sess := x.NewSession()
|
|
defer sess.Close()
|
|
|
|
var sequences []string
|
|
schema := x.Dialect().URI().Schema
|
|
|
|
sess.Engine().SetSchema("")
|
|
if err := sess.Table("information_schema.sequences").Cols("sequence_name").Where("sequence_name LIKE 'tmp_recreate__%_id_seq%' AND sequence_catalog = ?", setting.Database.Name).Find(&sequences); err != nil {
|
|
return 0, err
|
|
}
|
|
sess.Engine().SetSchema(schema)
|
|
|
|
return int64(len(sequences)), nil
|
|
}
|
|
|
|
// FixBadSequences fixes for broken sequences from recreate-table mistakes
|
|
func FixBadSequences() error {
|
|
if !setting.Database.UsePostgreSQL {
|
|
return nil
|
|
}
|
|
|
|
sess := x.NewSession()
|
|
defer sess.Close()
|
|
if err := sess.Begin(); err != nil {
|
|
return err
|
|
}
|
|
|
|
var sequences []string
|
|
schema := sess.Engine().Dialect().URI().Schema
|
|
|
|
sess.Engine().SetSchema("")
|
|
if err := sess.Table("information_schema.sequences").Cols("sequence_name").Where("sequence_name LIKE 'tmp_recreate__%_id_seq%' AND sequence_catalog = ?", setting.Database.Name).Find(&sequences); err != nil {
|
|
return err
|
|
}
|
|
sess.Engine().SetSchema(schema)
|
|
|
|
sequenceRegexp := regexp.MustCompile(`tmp_recreate__(\w+)_id_seq.*`)
|
|
|
|
for _, sequence := range sequences {
|
|
tableName := sequenceRegexp.FindStringSubmatch(sequence)[1]
|
|
newSequenceName := tableName + "_id_seq"
|
|
if _, err := sess.Exec(fmt.Sprintf("ALTER SEQUENCE `%s` RENAME TO `%s`", sequence, newSequenceName)); err != nil {
|
|
return err
|
|
}
|
|
if _, err := sess.Exec(fmt.Sprintf("SELECT setval('%s', COALESCE((SELECT MAX(id)+1 FROM `%s`), 1), false)", newSequenceName, tableName)); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return sess.Commit()
|
|
}
|