dendrite/userapi/storage/postgres/deltas/2022110411000001_server_names.go

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2022-11-08 08:27:23 -06:00
package deltas
import (
"context"
"database/sql"
"fmt"
"github.com/lib/pq"
"github.com/matrix-org/gomatrixserverlib"
)
// 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 UpServerNamesPopulate(ctx context.Context, tx *sql.Tx, serverName gomatrixserverlib.ServerName) error {
for _, table := range serverNamesTables {
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
}