forked from mirror/gitea
2df7563f31
Mainly for MySQL/MSSQL. It is important for Gitea to use case-sensitive database charset collation. If the database is using a case-insensitive collation, Gitea will show startup error/warning messages, and show the errors/warnings on the admin panel's Self-Check page. Make `gitea doctor convert` work for MySQL to convert the collations of database & tables & columns. * Fix #28131 ## ⚠️ BREAKING ⚠️ It is not quite breaking, but it's highly recommended to convert the database&table&column to a consistent and case-sensitive collation.
89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package db
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import (
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"fmt"
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"strconv"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"xorm.io/xorm"
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"xorm.io/xorm/schemas"
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)
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// ConvertDatabaseTable converts database and tables from utf8 to utf8mb4 if it's mysql and set ROW_FORMAT=dynamic
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func ConvertDatabaseTable() error {
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if x.Dialect().URI().DBType != schemas.MYSQL {
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return nil
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}
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r, err := CheckCollations(x)
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if err != nil {
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return err
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}
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_, err = x.Exec(fmt.Sprintf("ALTER DATABASE `%s` CHARACTER SET utf8mb4 COLLATE %s", setting.Database.Name, r.ExpectedCollation))
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if err != nil {
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return err
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}
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tables, err := x.DBMetas()
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if err != nil {
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return err
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}
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for _, table := range tables {
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if _, err := x.Exec(fmt.Sprintf("ALTER TABLE `%s` ROW_FORMAT=dynamic", table.Name)); err != nil {
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return err
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}
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if _, err := x.Exec(fmt.Sprintf("ALTER TABLE `%s` CONVERT TO CHARACTER SET utf8mb4 COLLATE %s", table.Name, r.ExpectedCollation)); 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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// ConvertVarcharToNVarchar converts database and tables from varchar to nvarchar if it's mssql
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func ConvertVarcharToNVarchar() error {
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if x.Dialect().URI().DBType != schemas.MSSQL {
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return nil
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}
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sess := x.NewSession()
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defer sess.Close()
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res, err := sess.QuerySliceString(`SELECT 'ALTER TABLE ' + OBJECT_NAME(SC.object_id) + ' MODIFY SC.name NVARCHAR(' + CONVERT(VARCHAR(5),SC.max_length) + ')'
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FROM SYS.columns SC
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JOIN SYS.types ST
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ON SC.system_type_id = ST.system_type_id
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AND SC.user_type_id = ST.user_type_id
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WHERE ST.name ='varchar'`)
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if err != nil {
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return err
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}
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for _, row := range res {
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if len(row) == 1 {
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if _, err = sess.Exec(row[0]); err != nil {
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return err
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}
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}
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}
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return err
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}
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// Cell2Int64 converts a xorm.Cell type to int64,
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// and handles possible irregular cases.
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func Cell2Int64(val xorm.Cell) int64 {
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switch (*val).(type) {
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case []uint8:
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log.Trace("Cell2Int64 ([]uint8): %v", *val)
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v, _ := strconv.ParseInt(string((*val).([]uint8)), 10, 64)
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return v
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}
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return (*val).(int64)
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}
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