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Fix column removal in MSSQL (#3638)

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* Fix column removal in MSSQL

* Use xorm session in MSSQL drop column operations

* Add transaction as MSSQL alter table is transactional
This commit is contained in:
Lauris BH 2018-03-07 08:44:12 +02:00 committed by Bo-Yi Wu
parent 4009c245a3
commit dc4afef07f
2 changed files with 61 additions and 21 deletions
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60
models/migrations/migrations.go
View file

@ -217,6 +217,66 @@ Please try to upgrade to a lower version (>= v0.6.0) first, then upgrade to curr
return nil
}
func dropTableColumns(x *xorm.Engine, tableName string, columnNames ...string) (err error) {
if tableName == "" || len(columnNames) == 0 {
return nil
}
switch {
case setting.UseSQLite3:
log.Warn("Unable to drop columns in SQLite")
case setting.UseMySQL, setting.UseTiDB, setting.UsePostgreSQL:
cols := ""
for _, col := range columnNames {
if cols != "" {
cols += ", "
}
cols += "DROP COLUMN `" + col + "`"
}
if _, err := x.Exec(fmt.Sprintf("ALTER TABLE `%s` %s", tableName, columnNames)); err != nil {
return fmt.Errorf("Drop table `%s` columns %v: %v", tableName, columnNames, err)
}
case setting.UseMSSQL:
sess := x.NewSession()
defer sess.Close()
if err = sess.Begin(); err != nil {
return err
}
cols := ""
for _, col := range columnNames {
if cols != "" {
cols += ", "
}
cols += "`" + strings.ToLower(col) + "`"
}
sql := fmt.Sprintf("SELECT Name FROM SYS.DEFAULT_CONSTRAINTS WHERE PARENT_OBJECT_ID = OBJECT_ID('%[1]s') AND PARENT_COLUMN_ID IN (SELECT column_id FROM sys.columns WHERE lower(NAME) IN (%[2]s) AND object_id = OBJECT_ID('%[1]s'))",
tableName, strings.Replace(cols, "`", "'", -1))
constraints := make([]string, 0)
if err := sess.SQL(sql).Find(&constraints); err != nil {
sess.Rollback()
return fmt.Errorf("Find constraints: %v", err)
}
for _, constraint := range constraints {
if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` DROP CONSTRAINT `%s`", tableName, constraint)); err != nil {
sess.Rollback()
return fmt.Errorf("Drop table `%s` constraint `%s`: %v", tableName, constraint, err)
}
}
if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` DROP COLUMN %s", tableName, cols)); err != nil {
sess.Rollback()
return fmt.Errorf("Drop table `%s` columns %v: %v", tableName, columnNames, err)
}
return sess.Commit()
default:
log.Fatal(4, "Unrecognized DB")
}
return nil
}
func fixLocaleFileLoadPanic(_ *xorm.Engine) error {
cfg, err := ini.Load(setting.CustomConf)
if err != nil {

22
models/migrations/v56.go
View file

@ -5,29 +5,9 @@
package migrations
import (
"fmt"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/go-xorm/xorm"
)
func removeIsOwnerColumnFromOrgUser(x *xorm.Engine) (err error) {
switch {
case setting.UseSQLite3:
log.Warn("Unable to drop columns in SQLite")
case setting.UseMySQL, setting.UseTiDB, setting.UsePostgreSQL:
if _, err := x.Exec("ALTER TABLE org_user DROP COLUMN is_owner, DROP COLUMN num_teams"); err != nil {
return fmt.Errorf("DROP COLUMN org_user.is_owner, org_user.num_teams: %v", err)
}
case setting.UseMSSQL:
if _, err := x.Exec("ALTER TABLE org_user DROP COLUMN is_owner, num_teams"); err != nil {
return fmt.Errorf("DROP COLUMN org_user.is_owner, org_user.num_teams: %v", err)
}
default:
log.Fatal(4, "Unrecognized DB")
}
return nil
return dropTableColumns(x, "org_user", "is_owner", "num_teams")
}