dendrite/userapi/storage/sqlite3/deltas/2022110411000000_server_names.go
Neil Alexander d1c61f5f95
Account data
2022-11-04 12:09:49 +00:00

60 lines
1.7 KiB
Go

package deltas
import (
"context"
"database/sql"
"fmt"
"github.com/lib/pq"
"github.com/matrix-org/gomatrixserverlib"
)
var serverNamesTables = []string{
"userapi_accounts",
"userapi_account_datas",
"userapi_devices",
"userapi_notifications",
"userapi_openid_tokens",
"userapi_profiles",
"userapi_pushers",
"userapi_threepids",
}
// I know what you're thinking: you're wondering "why doesn't this use $1
// and pass variadic parameters to ExecContext?" — the answer is because
// PostgreSQL doesn't expect the table name to be specified as a substituted
// argument in that way so it results in a syntax error in the query.
func UpServerNames(ctx context.Context, tx *sql.Tx, serverName gomatrixserverlib.ServerName) error {
for _, table := range serverNamesTables {
q := fmt.Sprintf(
"ALTER TABLE IF EXISTS %s ADD COLUMN IF NOT EXISTS server_name TEXT NOT NULL DEFAULT '';",
pq.QuoteIdentifier(table),
)
if _, err := tx.ExecContext(ctx, q); err != nil {
return fmt.Errorf("add server name to %q error: %w", table, err)
}
q = fmt.Sprintf(
"UPDATE %s SET server_name = %s WHERE server_name = '';",
pq.QuoteIdentifier(table), pq.QuoteLiteral(string(serverName)),
)
if _, err := tx.ExecContext(ctx, q); err != nil {
return fmt.Errorf("write server names to %q error: %w", table, err)
}
}
return nil
}
func DownServerNames(ctx context.Context, tx *sql.Tx) error {
for _, table := range serverNamesTables {
q := fmt.Sprintf(
"ALTER TABLE IF EXISTS %s DELETE COLUMN server_name;",
pq.QuoteIdentifier(table),
)
if _, err := tx.ExecContext(ctx, q); err != nil {
return fmt.Errorf("remove server name from %q error: %w", table, err)
}
}
return nil
}