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Started work on migration script for old database

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This commit is contained in:
comraderat 2020-05-30 22:43:01 +02:00
parent f0c1fbba94
commit c84b27d7ce
4 changed files with 86 additions and 4 deletions
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5
pkg/gcsql/connect.go
View file

@ -69,8 +69,11 @@ func initDB(initFile string) *gcutil.GcError {
return gcutil.NewError(fmt.Sprintf(
"SQL database initialization file (%s) missing. Please reinstall gochan", initFile), false)
}
return runSQLFile(filePath)
}
sqlBytes, err := ioutil.ReadFile(filePath)
func runSQLFile(path string) *gcutil.GcError {
sqlBytes, err := ioutil.ReadFile(path)
if err != nil {
return gcutil.FromError(err, false)
}

12
pkg/gcsql/queries.go
View file

@ -1056,3 +1056,15 @@ func doesGochanPrefixTableExist() (bool, *gcutil.GcError) {
}
return count > 0, nil
}
func renameTable(tablename string, tableNameNew string) *gcutil.GcError {
var sql = "ALTER TABLE DBPREFIX" + tablename + " RENAME TO DBPREFIX" + tableNameNew
_, err := ExecSQL(sql)
return err
}
func dropTable(tablename string) *gcutil.GcError {
var sql = "DROP TABLE DBPREFIX" + tablename
_, err := ExecSQL(sql)
return err
}

33
pkg/gcsql/versioning.go
View file

@ -39,7 +39,7 @@ func handleVersioning(dbType string) *gcutil.GcError {
return err
}
if isOldDesign {
return migratePreApril2020Database()
return migratePreApril2020Database(dbType)
}
//No old or current database versioning tables found.
if config.Config.DBprefix != "" {
@ -96,8 +96,35 @@ func versionHandler(foundDatabaseVersion int) *gcutil.GcError {
}
func migratePreApril2020Database() *gcutil.GcError {
return notImplemented
func migratePreApril2020Database(dbType string) *gcutil.GcError {
var tables = []string{"announcements", "appeals", "banlist", "boards", "embeds", "info", "links", "posts", "reports", "sections", "sessions", "staff", "wordfilters"}
for _, i := range tables {
err := renameTable(i, i+"_old")
if err != nil {
return err
}
}
var buildfile = "initdb_" + dbType + ".sql"
err := runSQLFile(gcutil.FindResource(buildfile,
"/usr/local/share/gochan/"+buildfile,
"/usr/share/gochan/"+buildfile))
if err != nil {
return err
}
const migrFile = "oldDBMigration.sql"
err = runSQLFile(gcutil.FindResource(migrFile,
"/usr/local/share/gochan/"+migrFile,
"/usr/share/gochan/"+migrFile))
if err != nil {
return err
}
for _, i := range tables {
err := dropTable(i + "_old")
if err != nil {
return err
}
}
return nil
}
var migrations = map[int]func() *gcutil.GcError{}