forgejo/models/migrations/v145.go

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// Copyright 2020 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 migrations
import (
"fmt"
"code.gitea.io/gitea/modules/setting"
"xorm.io/xorm"
)
func increaseLanguageField(x *xorm.Engine) error {
type LanguageStat struct {
RepoID int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
Language string `xorm:"VARCHAR(50) UNIQUE(s) INDEX NOT NULL"`
}
if err := x.Sync2(new(LanguageStat)); err != nil {
return err
}
if setting.Database.UseSQLite3 {
// SQLite maps VARCHAR to TEXT without size so we're done
return nil
}
// need to get the correct type for the new column
inferredTable, err := x.TableInfo(new(LanguageStat))
if err != nil {
return err
}
column := inferredTable.GetColumn("language")
sqlType := x.Dialect().SQLType(column)
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return err
}
switch {
case setting.Database.UseMySQL:
if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE language_stat MODIFY COLUMN language %s", sqlType)); err != nil {
return err
}
case setting.Database.UseMSSQL:
if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE language_stat ALTER COLUMN language %s", sqlType)); err != nil {
return err
}
case setting.Database.UsePostgreSQL:
if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE language_stat ALTER COLUMN language TYPE %s", sqlType)); err != nil {
return err
}
}
return sess.Commit()
}